Building a 318 for torque More cubic inches = more torque. For a mild 318 build? That's pretty much unnecessary. Replace HV oil pump with SV oil pump 4. Dec 7, 2023 · I say build the 318. Unless it's going to be a serious build, it'd be better to stay iron on the heads to keep the overall compression ratio. 450 on 110 LCA) gets it to 397 hp and 432 lb/ft with excellent low end torque. Considering stock 318 cam, 360 2bbl cam, 4bbl cam or maybe aftermarket rv cam. Terry Brighton racing built a 318 stroker with Trick Flow heads, air gap, Lunati 243/251 VooDoo hydraulic roller cam. 19 lbs-ft = 350-380 lbs-ft for a mild 318. 31, the 318 was an enlarged version of Chrysler's LA small-block that debuted in 1964 with 273 ci. I'm using the transmission from the 318 for the 360. Big blocks are their own kettle of fish. It's in a 74 Duster with a stock build 727 ( 2500 rpm convertor ) and 3. L. 640 . Oct 20, 2014 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - Building a 390 for torque - Long time lurker but never posted much on here! I have a 1975 F250 that I rescued from an ill fated destiny to the scrap yard I've been rebuilding and have started doing some research for the engine build as the rebuilt motor Dec 3, 2004 · Introduced in 1967 as a two-barrel engine with a bore and stroke of 3. My preference is for something narrower in duration to make even more torque down lower. I've talked about it and thinking about swapping out to a 5. 0 c. I already have a solid 318 core, so we'll work with Nov 1, 2003 · At 2,500 rpm, torque increased by 21 lb-ft, and peak torque rose to 370 lb-ft. Jan 4, 2024 · Seen ya start a ton of threads on 318 mods. Engine going in a 65 dart wagon, going for stock 273 appearance hence the 2bbl. I want to build it up, to produce 350 to 400 HP. Search RAMM for a gorgeous 318/347 stropker build. Comp 270S complete kit. 50" exhaust valves) If you just throw a set of 340/360 Jun 15, 2021 · Just in case people get the idea that I'm a 318 "hater" I wanted to share this stroker build that I've been working on. It’s got 3:23’s , 904 with the A&A low first gear set. 25 lbs-ft per cid. You can stroke a 318 and make almost 400 from that. falcongeorge , Dec 24, 2015 SHARE POST #10 Oct 30, 2019 · You can get 400 hp out of a 318 just by fixing the compression ratio, and allowing more flow in/out of the engine. Oh, and build the 360, for the most torque, (listen to Rumblefish) they are a good motor, not quite the longevity as a 318, but so close most will live forever, however, IMO. Just for fun, in the next few hours, I will put that combo in the ol' Desktop Dyno and see what May 16, 2019 · 318’s was never meant to run more than 4k RPM (or so). If you put a decently large cam in with these pistons and a stock stroke, the low RPM torque will be crappy to non-existent, and that is not what is desired for standard street driving. I am in the process of similair build. The goal is a good performing street ride in my 66 Coronet. Jun 10, 2020 · If we're talking about mid-range torque, then yes, a 300 is not right for the job. Nov 24, 2021 · I've got a '77 M880 (W200 Power Wagon) with a 318, 727/NP203 (full time 4wd) and 4. I'm wanting to build a 318 that'll be a good Street Strip Home. $1000 will buy you a pair of Speedmaster heads but not the few Feb 7, 2015 · Nice torque spread and great number from a 318 block. 9 will do even 318 will only cost less than 5 hp. 8-9 Nov 22, 2011 · (Stress = HP torque loads) The 3. 5:1 CR, aluminum heads, air gap intake, header and exhaust, solid lifter cam 230 int 236 exh dur@. Put on 308 heads milled to 62 cc chambers and assume a 284 cam is what the OP has with 110 LSA and advance it a small gob of degrees to 102 ICL : SCR/DCR = 8. Oct 11, 2012 · What was just said- a basically stock JY 360 Magnum or a 318 Magnum for that matter with an intake/carb swap will be around 300hp. . Nov 26, 2009 · 318's make great torque, try to work with it not against it and you will have a nice street motor, 300-325 or so horsepower and lots of torque. Jun 21, 2010 · I'm thinking of doing the same thing while I build up a 360 to use it's torque converter with a 318 in the meantime but I was under the impression the stall will actually be reduced. Other than the rpm range where things peaked at they were all quite close. Uncle Tony's Garage on youtube is building a 318 4 door drag car with a 318 now. 318 Cons "Hotter" cam, more of a choppy idle. These gasket-matching and bowl-blending procedures are always good for more flow at lower valve lift, which is what helps to build torque. Jun 19, 2012 · Ma Mopar basically used 273 heads when the teen was born. 8 2. best way to get torque outta a 318 is to 4 inch stroke it to 392, top Jul 17, 2023 · Building a mild 318 to this spec should net you at least 300 horsepower and 350 lb-ft of torque -- probably a bit more -- while providing a very smooth idle, reliable running and Dec 16, 2013 · For optimum low-end torque and throttle response, you can’t go wrong with an Edelbrock Performer-Plus cam kit, valve springs, and Performer intake manifold. But the OP said he wants as much torque off idle, and won't rev higher than 3-4000 rpm. 050 488/501 lift. 60 air gap intake 750 holley i have thought about Feb 9, 2014 · I'm looking to build a budget high torque 408. Jun 14, 2013 · Cheaper. Feb 3, 2013 · I going to install a Edelbrock 1406 Carburetor and Edelbrock Performer intake manifold on my 318 CUI (72 Dodge Charger - AT - PS - PB). IMHO, the later cams you list are getting closer. The engine you want to build is more of a 5,000 to 7,000 R. 10s on 33" tires. Although i am not a big fan of quadrajunks,4-wheelin is one place thay work pretty good. I have a few 360's laying around in the garage that are good low mileage ones, but figured, why not use this otherwise not going to be used 318 and free 3. I would leave the cam stock but use stock 340 springs. First torque is mainly a product of displacement it generally ranges from low of 1 to max 1. how to build a torquy 318? IP: Logged Message: R/T's are just heavy pigs. 6. 88 and 1. 030 overbores a 318 = 390-400 lbs-ft, 360 = 420-455 lbs-ft, 390 = 450-490 lbs-ft, Aug 27, 2008 · By 1977, 318 heads were only 1. Oct 23, 2024 · Installing The Engine. RPM's really sucked for the racing I was doing with a manual trans; the drivetrain would fall off the lower end of the torque curve at the 2-3 upshift step Jun 17, 2016 · Another cheaper route I look on local c. M. Aug 25, 2011 · So, build a 318 and a 360 very similarly (rings, bore, bearings, hone, equalize, etc). The Hot Rod site has at least two. Thought you were building it for the vet. This car is a daily driver. 6 valves. Now I'm already planning on putting a set of LA-X heads with 2. Jan 25, 2010 · The first Chrysler LA engine was the 273, which made its debut in 1964. 02 head or an aluminum head. Run the Apr 22, 2017 · I am wondering if a proper build with an upgraded rear drum and sprag set would handle a 400 plus horse 318. Now try to get the 318 to make the same horsepower and torque as the 360 for the price difference ($300). So we have a cam and compression ratio combination that is going to be poor at low RPM's (off-idle torque like a stock 318) and a head that is going to kill the high RPM's. Don't take my word for it as the professors with all the experience will chime in. 9) with the 3. which is more important than HP for a heavy vehicle and then ad towing to it. Horsepower now peaked at 324-an increase of 23. 34" - Tires: Falken WildPeaks AT/3Ws 33X12. When the time comes to rebuild a small-block, the 318 should always be cast aside in favor of Jan 7, 2025 · Why build a 318? Some may argue there is never a reason to build the Mopar 318. It was on Craigslist near me for $1800 still in the box. So your engine build really just comes down to cam an cr choice. I’m building a moderate 318 now and have no doubt it’s gna Smoke tires Jun 17, 2016 · If he tries to build a 318 for 400RWHP without increasing displacement, it will be much more difficult and probably be less "user friendly". Read all three. 658 CH, shaved down to 1. Does this sound familiar around here ?, lets continue: Nov 12, 2024 · But, I scored a set of RPM heads from the Summit discount shelf. I really dislike the fact that the aftermarket industry lists torque converters with a stall rpm (2000, 2500, 3000) because it's meaningless unless you know torque output they're recommending that torque converter for. The 69 318 was the highest compression ratio of the bunch, which is great for torque. 79 used to be the biggest stroker crank you could get. You can build a 999 to withstand anything, don't let the 727 fans BS you about that. Those motors really rev when built up a bit. 480 lift 220 duration. 6 valves is too much for a 318. 88" or 2. 2 Magnum with EFI? In a C-body, I fully support that idea. smaller than the 360's. I also have two 318 blocks in my garage. i dont want a pure strip engine, although i do want something that holds its own at red lights, im thinking a modest block/ head Oct 22, 2024 · The Dodge 318 engine, part of Chrysler's LA-series, is a 5. 479/. The idea with this engine in a mild, daily driver engine, with emphasis on torque. 360 Pros Bigger displacement easier to achieve 450 hp. 9 throttle body (bored to smooth airflow as thefastman does) provide better low end torque? '95 CC Dakota, 318, auto, 4WD *Mopar Dec 30, 2023 · Guy had no idea of what he was doing. Feb 23, 2012 · Here's another 400hp 318 build, this one using a Magnum head swap. On the 5. Problem with that mopar performance dyno comparison is one we don't know any of the variables. Obviously a 360 would be easier to build power with than a 318, & a 440 even easier, but the guy has a 318. 500 HP 318/340/360 small block build The following is written in reference to the 225 motor. If you wanna do an engine on a budget, I would stick with a stock bore and stroke one, OR plan on a longer build time. Looking for stock idle and low rpm torque. Jun 10, 2007 · I was wondering, I read a lot of stuff on how to get max HP out of a 318, but I have a 74 Duster with a 318 and I'm wondering on what is the best additions I can add to what I have to make a max torque build on a 318. His best options to build a 318 for 400RWHP is either; 1) Massive engine mods, porting polishing, big intake, possible multiple carbs, etc 2) Forced inductionSupercharging or Turbo Sep 22, 2016 · The main thing you got to remember when building a 318 over a 360 is that it's gonna need more gear and stall and the powerband is also gonna be moved up about 600 rpms or so. Made 535/535. Pretty much equal to 360 strokers give or take a few. a roller teener with a stroker would be a good starting point for a pretty stout engine combo, but like @TT5. Mar 19, 2016 · Wider LSA goes with lower RPM torque. May 21, 2020 · To me If your building a stroker it's mainly to gain torque why give up a bunch to use a 318 bore. We picked up a 1926 Dodge roadster, and she wants to build it in a mid-60's land-speed aesthetic style like someone dropped a 273 Commando in it. Any 318 capable of 400hp would be a poor choice for a C-body. That is the problem with these and any Mar 4, 2015 · I plan to build a very similar 318/390 block. The following is the build specifics that I used and I am confident there Jun 8, 2005 · A while back i helped a friend build a 318 for his ramcharger. Reason for the 318;buildI did the exact same thing to a low compression 273. Replace Mopar Perf cam with a Comp 252H (quite a bit smaller) 3. Looks like you want a mild torque engine aka idle to 4500 rpm. And be pretty weak under 2500 rpm where most cars doing 90% of there driving so Oct 29, 2023 · Many Dodge trucks and vans had the 318 and alot of those people towed with them. Usually you want to up-size, not down-size. Then supercharge it and you will have one mean 318. If you want RPM's get the 318. An if you wanted to get crazy Hughes engines offers a 426 stroker kit for the 360 , if you really wanted to though you could pick a blown up or high miles 360 pretty cheap in a junk yard, one good advantage would be to still drive the truck while Nov 10, 2022 · Blueprint stock oil pump. 9 Magnum, including the EFI, for the same or less than what building a 318 will cost. Big torque numbers at 2-3k is not going to do the OP any good. To make HP you need air flow and an appropriate level of compression. 93 or 3. 58" crank? Nov 12, 2018 · Here is a 318 Magnum motor I just finished putting together. I'm wanting to make a low end torque grunt street vehicle on a $2,000 budget. range to 1975 then they slightly increased to about 63 and then to 65 a couple of years later. Great street 'n' strip motor. that would easily meet your power goals, live May 9, 2014 · My 318 stroker build would consist of this Scat crank, plus KB flat cast pistons with 1. 7:1 CR (66cc chamber). 00 stroke cast crank scat I beam rods Diamond flat top pistons crower solid lift cam 545in 558ex eddy 63cc heads 2. Add better heads and a little more cam and you will probably have a much better all round performer. A decent 318 @ 3000 rpms 330-350 lbs-ft = 190-200 hp. Mo pistons work fine. 23's out back. The only machine shop I trusted packed up shop recently, so I want to purchase a 408 short block and build the rest from there. Recurve the distributor, use the "orange " box. Jul 17, 2024 · Torque wise, even though I don't think it's a big deal, the torque probably be for a 400 ish hp engine. Aug 13, 2020 · One other thin about the 318. we used a mopar performance stock 340 cam and it worked great. Putting it in a 76 3/4 ton 4. 9 Magnum. If it is a 74 Ebody it should have a 742 8. We won't argue. There is almost no point in stroking a 318 when the 360 already has more stroke and a bigger bore. Oct 28, 2017 · There are a number of articles on how to get 400 HP out of a 318. The Heart of the Beast: Before we delve into the details, let’s take a quick snapshot of what Oct 7, 2020 · Long story short, the engine is too aggressive and the car has too many blind spots for my wife's comfort. In the mean time you could buy a 360 and build it up, the 360 would give you the extra torque it takes to move that B body quicker. Jan 15, 2019 · When the time comes to rebuild a small-block, the 318 should always be cast aside in favor of a 360. Look back on here, how many members buy a Oct 28, 2018 · Way back in 1992 the engineers at Chrysler/Dodge redesigned the old 318 and 360 cubic inch V-8s. 030 overbore, with 390 cubes, there's nothing to be worries about. Then there is fuel economy. A 360–built properly–will always have a torque advantage Jan 7, 2025 · Why build a 318? Some may argue there is never a reason to build the Mopar 318. Next is to freshen up a 75 318 because the original motor has issues that I really don't feel like waiting on a machine shop to hold me up for months. I've always liked learning about ways to improve a engines performance. p. MP had a large verity of stroker cranks. Mine's got gobs of torque Apr 28, 2014 · the 318/390 stroker is an oversquare bore/stroke combination and should produce a lot of torque but will not be an engine that likes to rev. 5 compression 318 pistons, then put on a set of 340 or 360 heads, then you will be down to 9. Must I upgrade to a bigger trans on a 3800 pound half ton? Save Apr 17, 2009 · First, you'll need to get a 360 core, which will set you back $250 or more. Probably already toucheddar on here but they build a 400hp 318 that runs on pump gas upon your desired outcome, these cars are - meant - to be luxo cruisers, but what the hey oh and factor in a trans build and a good torque converter - your SB 727 wont bolt to Aug 19, 2006 · Gobs of low end torque? 318 head 360, if you will keep it under 4500, use the stock 318 valves too. I have everything Sep 25, 2020 · The only time that engine might require 87 gas is with All 4 bbls open,and at going thru the torque-peak,and towards the power-peak a ways, where the engine is gonna be most Volumetrically Efficient, VE. I have a 1968 Mopar 318 engine. The only thing would be a blower, that is a bolt on that really ups the power/torque. 9mag pointed out a fresh mag with a turbo would be the easy button. Guys This article; 1) is all about; How to save money by doing it right the First Time and not having to buy extras like hi-stalls and performance gears, and 2) is all about; How to get torque at low-rpm, from the commonly available low-compression 318 that Sep 20, 2006 · That's disappointing. 88 intake valve 360 heads milled . so not too awfully bad a DCR drop from stock but still a bit less low RPM torque than a stock 318 3. The 318 won. 76, 2. Secure the Engine: Use proper hardware specified by the manufacturer to fasten the engine firmly. 2 L TBI : Aprox : 175 HP - Torque 260 Ft. At . 69 318 block with hughes main girdle mopar 4. I am just going to throw one thing out there though. Nov 12, 2018 · Looking for cam suggestions for a 318 with 302 heads, 2bbl 318 intake, stromberg WW, 273 manifolds (eventual dual ex). It will be really hard to increase the noticable power by just simple bolt on. Taking the 318 with heads, headers, and a 4bbl, then adding the 4" stroker crank (with pistons for 10. It's just way easier with a bigger engine. Mine also has 2 weights, I am still trying to figure May 24, 2010 · I'd be happy with 400-450 and a boat load of torque. Torque storm is hardly a serious supercharger. Connect Electrical Components: Attach wiring harnesses and sensors, ensuring Jan 15, 2014 · If u were going to build a 318 would u just build the motor up with 10. Oct 6, 2020 · It's got the original 318 in it, so he opted to get it rebuilt. In general, it involves raising the compression (with pistons and reducing the deck height of the block), getting better heads (EngineQuest usually, or Magnum), and getting the correct cam, pushrods and associated valvetrain parts, intake and 4 barrel carburetor (or third Jan 17, 2010 · Don't over cam it. She won't drive it, which sucks for her. 00" Inches Anyone looking for a built 318 will want to build it them selves. Many years ago, Hot Rod or Car Craft magazine (I don't remember which), printed an article that challenged builders to get maximum HP with a $2500 budget from a Mopar 318, 350 Chebby and a Small block Ford (351 Windsor I think). However, 318 cores are free for the asking, and that offers some economic Jul 1, 2018 · Hi! I want to build a 318 Stroker with at least 300hp at the wheels. The 318 chambers were in the 61-62 c. Looks like it is going to be Apr 10, 2017 · Checking in as I am looking at a similar 318 build. x is, I maintain, a dollar for dollar, labor vs labor better deal for the hundred HP you gain while retaining good low end torque if using the magnum cam. The idea was to build a small cubic inch engine with a supercharger that could equal or exceed the power Nov 1, 2005 · Some time ago, I asked the participants of the Dodge message board for suggestions on how to get better performance (good low end torque and reasonable power) from a pre-Magnum 318 V8. 60 valves , and probably a little more torque , but when it all boils down i guess , if you already have a 340 or 360 to rebuild you are already at an advantage it will make more power , but if you have a 318 your Jan 11, 2013 · Car went like stink with that 318 in it, had the 120 mph speedo buried many times. It should be idle smooth und depandable (dailydriver quality). 441" lift cam, speed pro double roller timing chain, 1. And, because the heads breath better, and the valves are bigger, even with a smallish cam, the power band will be higher on a 318 than a 360 with the same same  · Hi all, I really love this forum (been lurking for some time now), there's quite some people around who seem to know what they're talking about, without the spam (found in several relevant usenet NG's). 5:1) and the milder version of the old Mopar 340 cam (260/268 and . . The stock 318 heads will be a limiting factor, so you should look at better flowing heads, maybe a 360 or Magnum head conversion. Many call it, the 'Motorhome Intake'. On the Edelbrock #SP2P, it was designed for Low-End Torque and Economy, as it has small runner-ports to go along with a dual-plane style. So remember when you build for torque, the horsepower numbers will fall into Feb 25, 2017 · The HP peaked at 4500-5500r's and torque was from 3500-5000. According to this article 318 Engine Build - A Parts Book 400HP 318 - Mopar Muscle Magazine it can be done on the cheap. I've been doing a lot of research and I'm leaning towards a 408 short block from Muscle Motors. I’ve never pushed too hard on a Jan 3, 2008 · My 318 has more power everywhere, at low rpms and of course at higher rpms. Cam heads etc help but not by much over what you have. If you was torque out of a 318 then just stroke the b!tch. No power adders like blowers, turbos and nitrous. Course a 340 done right with good crank, heads, cam and proper induction can put you a almost 500 from that combo. 02 and 1. EVERY 360 I have opened up has been cursed with dished compression robbing pistons. Advance the stock 318 2bbl cam 4 degrees. Jun 26, 2017 · As far as shelf versus custom cams, small cube/big valve motors, like a 318 with 2. Your stock 318 with headers and intake/carb will probably be around 185hp or so at the crank. This engine will be going into a 1950 I have a 1983 dodge d150 4wd 4 speed has the 318 ALL stock. Brandon689 New Member. Shift kit, 5k governor with the higher shift point 1 Nov 29, 2005 · Monster 318 Poly build (Tons of tech info) Discussion in 'The Hokey Ass Message Board' started by Appleseed, Nov 29, 2005. 318 intake ports (cylinder head & intake) are much smaller than 340/360 intake ports are. P. I've seen cars / truck's with new rebuilt motors 500 miles at best guy said screw it I want a new car and sells off-the-wall whole thing for $600-$700 I keep the motor and sell the remains usually for what I payed . Our 5. Sep 18, 2018 · 318 build. I recently saw a Paxton super charger kit and thought it was cool. Jul 17, 2024 · Top one 388-400 hp from 5,500-6,500 rpm that's a pretty wide peak hp and torque pretty flat from 3,500-5,500 rpm 371-382 tq. 1. those small primarys allow for good low end torque. Most builds make around 1. But again, I really want to know Sep 20, 2023 · Also, this thread is for naturally aspirated builds. Looks like those pistons are for a MAgnum 318 and not a LA. Any idle-5500 intake with a 650 ish carb. As per the NHRA Horsepower Ratings, the 1969 '318' put out 195 HP. As the saying goes, drive torque, race horse power(s). Oct 6, 2024 · I have a lock up torque converter from my 81 727 that was behind a 318. I'm researching ways to improve both the torque and throttle response of a 318. Now @ 9. Horsepower remained above 310 all the way to 6,000 rpm. 23's but millage drops off The only draw back to 318's is torque. The crankshaft was trashed from the thrust bearing failure, he pulled a good turnable crank from his '68 fury engine that was totaled. The 340 is a more aggressive build, with a fairly long-duration cam, 11:1 pistons Jun 21, 2020 · Those cars are heavy (at least 4,000 pounds), and to get it to move and be a nice streeter, it would take an engine built for torque and bottom end power. SHARE POST #10. Feb 21, 2024 · To read about VP, go here; V/P Index Calculation EDIT As usual, some of you have comprehension issues. Nov 24, 2021 · Here’s my 318 build. Just some thoughts. 8/6. When others are revving the hell out their n/a motors to get into the torque band you'll just blow right past them. Save Share Oct 21, 2017 · Then comes the new torque converter (a "more-stall", or modified stock converter works great) and diff ratio. Depending on which stroke crank and final bore size you choose to use, you can build 318 stroker motors of 370, 390, 396 or even 402 cubic inches. Decking the block . It will run high 14's (14. 70" intake and 1. My thought process is a set of -6 cc KB399s, the 596 heads, and pick a good torque biased cam suitable for the truck application. Yeah, they claim small ports give a faster flow, but all I know is I am 1 happy guy having the newer 360 heads on my 318. 60" exhaust valves (stock 318's have 1. The pre 1973 318's have a weaker rod then the ones made after 1973 so you might want to look Jan 5, 2021 · Welcome to FABO. And if it’s something that’s going to make real boost power a factory Chrysler block shouldn’t even be on the build sheet. 055" which raised comp 1 full point. I don't remember any other details, but the 318 won. I have a 1977 W200 with 4. 040",  · You want torque? Then get yourself a set of 85 and up 318 2bbl heads, the 302 castings. Build the teen with the 4 inch arm and enjoy. Dec 22, 2023 · Motor : V8 LA 318 5. Take a 318 and 360, built with all the same components, the 360 is still going to produce more torque, and most importantly, make that torque lower in the RPM range. Its simple design, sturdy components, and versatility made it adaptable to various Jun 17, 2012 · Building a budget stroker is like building a budget early Hemi. Jul 17, 2024 · A decent 360 should make about 380-400 lbs-ft at 3,000 rpms, hp is 57% of torque at that rpm (215-230 hp), so basically 1500-3000 rpms is making 100-230 hp. 23. 2, and knowing that a smaller bore on the throttle body= higher intake air velocity and therefore better low end torque and throttle response, could a 3. 88/1. If I was to buy a cam to put in my stock bottom end 318 with 302 heads and dual exhaust, LD4B intake and 600-650 carb I would choose the Howards #711381-10 208/214 255/261 . @ 2,000 RPM - Transmission : A500 Four-speed Auto . No need expensive manifolds 340 Will add 5hp at most so any 360/5. Aug 10, 2020 · Don't know much about 318's ,4 barrel and better intake perhaps. 69:1 Overdrive RWD Suspension Lift: 4. 10 diff. It's a good motor plus it has the unleaded heads. 0:1 cr. I would like to do a fun street build. Now if they would have used 340/360 sized ports and valves and 10. The 170 is a different kettle of fish. 2-liter V8 that was produced from 1967 to 2002. The 273/318/340's greatest strength is the ability to rev fast and spin high so if geared right they will destroy 360's and other stroker engines because of how fast they can rev and build Mar 29, 2010 · The idea was to build a somewhat mild 318, and through a moderate and reliable level of boost, increase the engine's output to an incredible 650 horsepower and 600 lb/ft of torque, while not Oct 11, 2019 · In this article, we will break down the key components of our 318 Mopar engine and discuss how it’s designed for optimal street and strip performance. May 17, 2014 · But if I were to go cheap on a 318 build again and the heads are off, just do the smart thing and put the 1. In the top-right accordion menu is a detailed series on rebuilding poly 318 engines (also applicable to 277, 301, 303, 313, and 326) including performance modifications and building a 390 or 402 stroker. However, after 500 for the motor at a Junkyard, and at least $150 for the Magnum carb intake, and a weighted torque converter or B&M flex plate, carb, a now a fuel pump and regulator for that Feb 11, 2019 · It's a 1965 Plymouth Valiant 4 door 3 speed car. Clean up the bowl a tad, don't get any bigger than the valve size. 75 axle and depending on what ratio her father may have chosen, it would have either a 2. 430/. I believe my current motor has too much compression for boost (10:1) but might look into building one down the road and putting it in a sweptline D100 if it would fit. Or do all the same plus a 4" stroke scat crank and scat ibeam rods . If the heads are shaved or block decked, the intake can be too. 2 because of the larger combustion chambers on the 340/360 heads, then you can get 1. Nov 10, 2013 · I'd just stick with the 318, but the 360 has a few extra poneys an I believe a little more torque. 40 , and still net me about 9. The truck is a daily driver through the week, hauler and tower on weekends, camper and wood/coal, with some trips as Jul 5, 2023 · the A8 build would be its own entity, basically nothing from a LA stroker could be used or, more aptly, should be used when building a piece like that. Dec 7, 2023 · Torque storm is hardly a serious supercharger. When the time comes to rebuild a small-block, the 318 should always be cast aside in favor of a 360. engine with little bottom end and torque. A stock 360 intake should be cheap enough to pick up to mod if you did anything with changing the height. Jan 17, 2014 · We’re building the muscle car engine Chrysler never did. IF your going to build a powerful 318, it would be 340/360, 2. 318, 380-400 tq 340, Popular Hot Rodding Magazine 318 Small Block Build - How To - Hot Rod Magazine 318 Long Block Bolt Ons - Tech Articles - Dec 27, 2015 · So my previous post was talking about a 360 with kieth black hypereutectic flat tops and everything as a build but I now have ideas for a 408 stroker build. The ports are a bit smaller than the old 360 ports but still bigger than any 318 heads and way bigger than those 318. Then keeping it with a small overlap cam. Short of a used nitrous kit, it ain't gonna happen. Builders choice. The 4. I am actually collecting the parts to build a 318 with the 360 3. A stroked 360 thowhen 'more' torque is needed there aren't many options other than a big block Mar 12, 2016 · Ok so the testing went well and 4 actual changes were made. Plan is to use most of what I have and as usual it’s a budget build. It was followed closely by the 318 in 1967, the 340 in 1968, and the 360 in 1971. the main benefit (IMO) to the 4. Dec 7, 2023 · Considering the OP asked if building a stroked 318 was better than a 340 or 360, we should keep our focus in that direction. 125 - 1 2. c. 7 is Jan 29, 2021 · A higher stall torque converter at a minimum. Small ports have no place on a stroker. In this context, I interested to hear your advise and opinion of which CompCam I shall mount to get a mild / middle tuning ( not some kind of tuning that smash my 904 tran or my 8 3/4 rear axle) - I do not run race - but just Oct 26, 2005 · In the search for more low-end torque from a Magnum 5. Which would be better, a Mopar 518 or a GM 700R4 w/ Apr 17, 2019 · I have a 318 1983 ALL stock in my 1983 d150 it runs great for how old it is and I'm wanting to make a low end torque house engine build out of it on a rough under $2,000 budget. Jul 13, 2012 · Comparison of turbo Slant Six 500 HP build vs. Forums. New posts Recent Posts Search forums. Jan 15, 2019 · Why build a 318? Some may argue there is never a reason to build the Mopar 318. What is a good intake manifold, cam, cylinder head combination? Also, I plan on changing the 727 transmission to an overdrive unit. They are probably different. 318 Motor from a 96 Dakota in real good used Dec 24, 2015 · If you are building a sb from the ground up, and low rpm torque is the goal, there is no reason NOT to build a 5. A 360–built properly–will always have a torque advantage over a 318. IMO I agree about the torque storm, they’re entry level at best. I'm not gonna race it, so what'll happen Jan 18, 2022 · Hi all. 494 110°. I would buy the car and drive the crap out of that 318 till it dies. So with that in mind, here May 6, 2020 · Sounds like open chamber 318 heads (from the date range), not closed, and standard low compression 360 bottom end. Sure, anyone can build a big block with tons of torque and HP and I would like the space for Apr 13, 2011 · yeah my apologies rumble it was a bit messy . But you can swap out an excellent 5. Sep 30, 2014 · Hi Guys, I posted years back about a 360 build I was going to do but for various reason didn't happen but I'm almost at the stage where I'm ready to rebuild my original 318. One is a 72 block and the other is a 74 block. Torque oriented cams have LSA in the 110-112-114 range. DCR is about that of a stock low compression 318 so low RPM torque will be about the same. Being a Dec 22, 2023 · Increase Compression is your first choice to gaining more torque. As with any performance build adding parts like headers and cylinder heads will increase power but it all comes at a cost. Keeping the revs down will help with reliability. The cams like the XE268 kinda straddles the middle ground between torque cam and higher HP cams. Dec 28, 2019 · In my book a 360 'is' a stroked 318, so I would never consider stroking a 318 becausewell the factory already did, and for dern'd sure finding/installing a 360 is typically a whole lot less spendy than all the machine workj for stroking a 318. what ever you do ,don't use 360 heads. This is to help guys with 318 builds get a good idea of what they are capable of. Okay, what do you guys think about this combination? If I was to do a 318 2 barrel with stock parts, I would use a carb / intake from a truck, 360 2 barrel cam, rework the stock heads, good flowing exhaust system. 1-1. Jan 20, 2018 · The summit kits are pretty good, and unless you are planning on building to create monster HP or torque the Fed. Up until the flow limit of the heads it will make more torque everywhere than a smaller stroke engine. Jump to Latest The stroker will have a lot more torque though. I currently have a mostly stock '69 318 in my all original '69 Cuda. The engine is original, under 100k miles, but a bit of idle time after belonging to a narcotics task force. 025", which I believe gets your CR over 9, add a cheap cast iron 4 bbl ported as well and a carb Nov 1, 2005 · Some time ago, I asked the participants of the Dodge message board for suggestions on how to get better performance (good low end torque and reasonable power) from a pre-Magnum 318 V8. You can make a 318 run great, but the only item non-replaced/reworked will be the block (and possibly the crankshaft and rods). 1st thing i do is toss the intake & carb. And it's a relatively low displacement engine for the weight of the car. Power in the high RPM band, less low end torque. Low end torque, won't need REV it as high. 475-ish and 260~275-ish duration. The good news is that a 318 390 stroker kit gives them a huge increase in performance. 030 over bore? Do you think it would Sep 7, 2017 · Stock cammed 318 as above with 675 type 318 heads: SCR/DCR = 7. And muscle it should have. All the little rot holes are fixed and they blended the paint really good. A 383 to a 505 is a torque monster hoss. Jul 16, 2019 · 318 Engine Build - A Parts Book 400HP 318 - Mopar Muscle Magazine. 67 lbs-ft per cid a mild engine is generally gonna fall in the 1. 91 w250 318 518 44/60 single 9 foot driveway plow locked at lower RPMs. So a 450 hp 318 will make peak power around 6500 rpm and peak torque around 5000 rpms. Their work added a newer roller camshaft, hydraulic lifters, revised cylinder heads, higher flowing exhaust manifolds and a long runner redesigned intake manifold. I know the 318 TC's won't work unless you add the weight from the 360 TC. There won't be an issue with intake as long as the heads aren't shaved. What I'm thinking of is what I want to do long term. It will result in a faster car albeit with similar peak numbers to a Jan 27, 2013 · 318 Build Stroked Vs bored and camed. And if it’s something that’s going to make real boost power a factory Chrysler block Jan 26, 2015 · Okie Mike That 230 HP rating @ 4400 RPM's was way over-stated by Mopar. Home. I've already purchased a majority of the parts but still need, pistons, cam/lifters and rockers to name the main parts. 2 Magnum / 318 stroker kits will improve the performance and durability of your 318 considerably. With a 4˝ stroke, a medium length rod and the Magnum heads this motor will make good torque numbers and enough horsepower to thrill a former 318 owner and should have a May 21, 2015 · That's the problem building a stock short block 318 is Compression vs airflow, if all thats expected is 300 hp or less, stock heads are the best choice. It ain't gonna happen. Over cammed the damn thing. Just got my 67 Fury 3 wagon back from the bodyshop. * First Step > Dual-Exhaust will help immensely. Balance the rotating assembly. I'd like the engine to produce a lot more torque in the lower rpm ranges. Apr 22, 2017 · So he pulls the torque converter, finds where my transmission leak is (the front pump) and that the torque converter "rattles". Mar 9, 2015 · I'm thinking of building it for a torque motor. ajmopar, Nov 26, 2009. easy fast #7---318 With & Without a Supercharger: 2/10/2021: This dyno test and engine build-up was featured in Mopar Muscle Magazine. 360 Cons Weight, bigger displacement, use more fuel. I was planning on using a torque converter from a 360 that I have. If you're going to build a hot-rod motor and sweat $300, you're not going to be happy when you're done. New posts thanks for being on board with the connectors- we bent more than one of those up even with the 413 we had to keep a wide torque band with the stock big heavy three speed even more so than the TF we switched Jan 31, 2024 · eschew the single plane for a dual, the smaller cubes need all the help they can get in the down low and torque department. When I swap those heads on, the 596s will be available for a 318 build. Less choppy idle. Aug 7, 2024 · And yes, the Weiland intake will get the job done! Stock 318 heads will need the . bit lazy with the enter button , your right the engine probably would have produced more power with 1. i think those pistons are fine for a mellow build and with the right headgasket you can probably get the compression to a decent number. 9 Magnum I want to know what I can do to get more lower end torque abstaining Nov 12, 2024 · But, I scored a set of RPM heads from the Summit discount shelf. Test with customers 1 5/8" stainless headers with 3" collector From the cam breakin to the last pull the engine ran so Jul 4, 2010 · Most say nahhh, I say, get em, build a 318 for RPM, and twist er up! the loss of torque isn't as noticiable as it would be with a larger cam, compared to say, the longer stroke 360. 60" valves on your fast velocity 318 heads, while opening it up in the bowls a bit, port match at the flanges, deck those heads about 0. Torque: Typically between 260 lb-ft to 320 lb-ft; Firing Order: 1-8-4-3-6-5-7-2; The 318 engine was built for longevity and ease of maintenance. I already have the stainless 2. Aug 14, 2017 · But really no needed to over think your build. 15-1. More difficult to achieve horsepower goal. Joined Sep 18, 2018 Messages 4 Reaction score 0 Location Canada. It'll clear up many questions. From 1968 through at least 1984, all 'LA' heads, either 318, 340 or 360 were of the 'open' chamber design. This is why most would steer you towards a 340/360. 02 intakes, would like most shelf cams since that combo favors wide lobe Seperation angles, and a lot of shelf cams can be had with wide LSAs. Mar 5, 2023 · Ours is 100% max torque build from 3500 and down and the model shows it. 02/1. Easy burnouts & low end torque & ultra low price. 50X15"s - Net Lift: 7. and 33" tires. 100", do a bowl blend, a good proper three angle valve job, back cut the intake valves, use a super six intake and 318 Carter BBD, headers. 7 rod 383. Aug 29, 2014 · Hello. This greatly adds to drivability. The smooth idling cam in this kit is perfect for dual-purpose Jun 10, 2007 · Heres my 318 build: '77 stock rebuilt shortblock, melling hv oil pump, summit . So on 0. Things that are already in: Edelbrock 600cfm Performer Edelbrock 318/360 Intake MSD Dec 4, 2015 · If you get a set of 10. Apr 10, 2011 · My last build of a 318 was this all day. Note what cams are used and why. CR you'll probably want 8. Aug 4, 2017 · Maybe this got you thinking, try this google search hot rod magazine 318 build. Any decent 360 @ 3,000 rpms you barely got into it's powerband you haven't even hit peak torque. Lb. I'm wanting to get new cam, and possibly valve Jul 18, 2016 · If you want torque just get the 360. 5/1 compression Like the HP 273's and a solid lifter cam spec'd like the D Dart motor there would have been a 350+ HP motor from the factory. Places like Blueprint and ATK have short blocks for a grand less, but I'm Apr 16, 2015 · The more I'm reading and learning on here (which is a lot) I'm getting the understanding that using 340/360 heads or any heads with 2. I'm thinking of looking for a cheap rebuildable 318 magnum and just build using that, for one I can build it while still driving the Duster and have the option of a roller cam. Whereas fitting it into a winning combo, make take some ingenuity. 3/6. This would also place these low surface-to-volume flat piston down in the bore about 0. Run a stock dual plane intake. Dec 22, 2023 · Building the 318 from scratch to meet your goals is doable, if not cheep. And even though you want to achieve 500hp, peak hp isn't that important with a turbo as the torque band has been more than doubled by using the turbo. I forget which year it is, but there's one stock slant 6 cam that's well Sep 17, 2018 · Building the perfect 318. go less wild with the cam and try and stay around . The 360 heads at that time were mostly 65's. I was able to obtain 413HP and 463 Torque. 9 is still the route I would recommend. Stock 318 heads can get you 300 hp no problem. Nov 5, 2017 · And if you don't want to do the 360 Magnum (for the record, a 318 Magnum cam is hotter then a 360 Magnum cam), but want to keep the 318, a factory 340 grind cam, double roller timing chain, headers with dual exhaust, and a set of intake port matched 318 heads to a 4bbl intake will work very well on a street motor up to 4,000-5,000 rpm (a street motor seldom sees Apr 7, 2009 · finally the weather is breaking, bought a buildable 318 w/ 904 mated to it, gonna pull out the #'s matching units out of the car and store. Dec 27, 2019 · Still though, 360/5. The 1963 Poly A-block 318 Core Engine being Rebuilt into a 390 Stroker . (the torque curve would be shifted too high?) Now a mildly hopped-up 5. 91x3. Nov 2, 2020 · The pro charger,torque storm, or paxton. 10 gears with a 350 automatic. My question is what would it take to make that engine live a long life at a sustained 6000 rpm?By sustained I'm talking hours at high rpm Feb 22, 2024 · For the price of tearing into a 318, a low-ish mile (read 150,000) 5. 58" stroke. The others aren't looking too bad either, look like pretty good power curves to me and all that was mentioned was a peak 400 hp goal, and all I said was the recipe seems fairly consistent be it a 318 or 340/360. Oct 1, 2001 · The plan was simple enough: build a boatload of torque with adequate horsepower to transform a 318 Poly engine into a mill capable of quickly hauling a '56 Plymouth Savoy down the boulevard. A mild cam like you have and a 4 barrel will wake up a stock 318 a bit. I thought the torque converter from the 360 was a lock up as well but it is not. 02" intake valves and then go with the 1. there ports are to big and will totaly kill low end Jul 12, 2006 · I build street engines for torque and let the hp come on its own. Build the 318 with a 9. $1000 will buy you headers and may be some cheap exhaust. Going with a 318 running 87 octane I'd leave the compression where its at on the late LA engines which should be somewhere just below 9:1 if I remember right - somebody can correct me though. I'm also thinking of buying a torque plate as the engine guy who will do some Apr 27, 2002 · Unless you make the displacement larger. Jun 18, 2016 · A 70 318 has been lurking around my storage of parts for 8 years had pitting and wear in the bores. It makes 400 horsepower at 5,000 rpm, horsepower and 500 foot pounds of torque. 7 is amazing for it's size and ability to make decent power. We won’t argue. Go start your own thread. for a mopar with a Fresh rebuild that the owner is giving away cheap . The only decision I have made is to fuel-inject it with an Accel or Holley EFI system. The 318 and 360 engines are balanced differently, so you'll also need a new flywheel or flex plate and torque converter. And all that dinkin' around will get you 1 horsepower because you have perfect bores? 1 day ago · Perform a mild porting job on the heads. At the very least you'll want to use a die grinder to gasket-match the intake ports to the intake gasket and to blend the valve seats into the cylinder head. Gather Necessary Tools: Use a torque wrench, socket set, and engine stands for safe handling. Position the Engine: Align the engine with mounting points in the frame. A 360--built properly--will always have a torque advantage over a 318. If you're talking about aluminum heads and a mild a build you're going to be disappointed. Right now I have a late 70's 318 so in order to do a roller I'd have to use retro lifters which are big $. Thread starter Brandon689; Start date Sep 18, 2018 - B. And ironically, that range exactly matches the power band of the 300 six. They were built for low end torque. 6 onto a 318 (was originally building a 360) I will hopefully start building shortly. I would estimate 250 horsepower. ive read alot about build ups on the 318, seems decking the block to zero deck height is the most gain to get h. zcyvgr gkc habqyjue jskj jhwept ipuwhz fmrad ppl fdcfs oovgi