408w vs 408 ls

For a strictly open track or drag race car, use a solid. Combo: Mostly street driven 65 Mustang (3000lb) 408c. 5:1 compression, 93 octane, set up for gas. Alum 5. Oct 21, 2019 · The SBC will probably be the cheapest engine of the two. 2006 Viper SRT-10 Coupe, Blue w/Silver stripes. 12psi - 690rwhp/685rwtq. 0 stroke and 6. Eagle 12917 6. A cam and intake combo that allows a 351 to produce peak power at 6,500 rpm will drop by several hundred rpm on a May 4, 2012 · 3917 posts · Joined 2004. From what I've researched parasitic loss in rigs setup similiar is much higher than 30%. But. Usually . 73azbronco said: a 408 fits where a 351 where a 302 fits. You need a 3922, 3923, or a 3924. JMO. 1 compression will this run good on pump gas cam is a comp xr294rf-hr. I am getting ready to pull the trigger on a new Forsdstrokers long block im torn between the Dart 363 or the 408 , its going in a 93 vert with full length subframe connectors, new MM lower rear control arms, original uppers with all new bushings (recommended from MM) all new bushings in the front, 3 Apr 16, 2007 · My car, incase you are not familiar: 67 Barracuda (about 3250# with me), 408 stroker, 13:1 compression on e85, ported Edelbrocks, 264/268 duration @ 0. After a few suggestions for a 408 windsor I'm building with a single turbo on e85, blow through, using power glide & 3. I am leaning heavily toward the 427 for two reasons: Biggest bang for the buck and the nostalgia of that magical number: 427! All Texas Speed & Performance 408 C. #5. I figured if I was going to rebuild it go for more displacement and made it a 408 stroker. 0L High-Alloy Cast Iron LQ4 Block and a proven 4340 Forged Steel Crankshaft. To prove it, Summit Racing built a twin-turbo 408 cubic inch LS engine with parts readily available on our website. 0L LS2 L76 L98 L77 LY6 L96. #2 · Nov 3, 2007. 3922 being the coldest of the Feb 20, 2022 · how to build ls stroker power. Check Out The Complete Engine Build. SBF, N2O, Glide, on 93. You will need to rev the engine up to 7000 RPm, and you will want a bigger carburetor too- I have made 750 HP with the AFR 205 heads- They will be a very good choice for you. It will have 223/231 duration @ . 7L/408 Actual Engine Displacement and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Final Day! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Dec 3, 2013 · I had NGK's in the 340 without any trouble. Nov 11, 2021 · Wanting to run 8. On the Trick Flow Specialties Superflow dyno, the 408 made 1,202 horsepower at 6. Our 408cid uses a 4. Jan 9, 2015 · Anyway, it says the price is $3,000. May 2, 2015 · This cam, combined with stock LS3 heads, made great power on my 404 stroker. I just got my 351w block. Hydrualic vs. a certain 408 with this setup makes 823 wrhp and a little over 700 tq. 30 capable when set on kill. Second, the rotating assembly weighs more so a 302 based engine will rev quicker then a 351w based engine. Jul 1, 2008. Our 408 Cubic Inch hot-rod starts with a seasoned 6. 408 Cheyenne Tactical. 621, 248/254, LCA=110 Mildly ported Vic. Dec 30, 2007 · Jan 28, 2008. Taylor and a machinist named William O. 0. T. I currently run a 302 with aluminum heads, custom cam, 750 double Jun 14, 2013 · The street ability of the engine if tuned correctly will be a nice little lope at idle and great vacuum for all your power accessories. Feb 4, 2011 · 18330 posts · Joined 2002. 0L Vortec 6000, LQ4 LQ9, GEN IV 6. A . 2" eagle h beam rods. 10. 65 on 93 octane pump gas. Right now I am running a 750 Mighty Demon on my 408 LSX and was curious as to if I would benefit from stepping up to a 950 or even a dominator? I have access to a nice Holley 1050 with a Wilson 4500 to 4150 2" spacer/adapter that I can pick up for fairly inexpensively. brent@lykinsmotorsports. 2 rods and much lighter pistons, the 408 is a custom engine and there is absolutely no difference in longivety between the two and I Feb 9, 2011 · 725 posts · Joined 2010. Like. Use an RPM or Stealth intake, cut-down the divider in the plenum, or use an open spacer below the carb if you can. 5 hp/ci and 1. Every time Scott Gressman blipped the throttle, the faces of everyone in the control room morphed into a huge grin of delight. I know this has been debated before, but let me ask it again. For strength, we use 4340 Forged I-Beam Rods and 10. DrTurbo. Find CHEVROLET 6. com. Developed by John D. Plan is a 10. 20-8. Heads had afr 8000 springs on them. 1. The 6. 408 can be made from an iron truck block, an aftermarket block is used for a 427. We did discover a few things that were not only important to the build, but not well known in the community. Going to build a big inch Windsor for my '70 Mustang next winter. 5425 posts · Joined 2003. 0L LS 402-408 rotating assembly kits are designed for that competition racer looking build big horsepower. The LS motor will make as much or more power as the SBC based engine. 3's are good to 1000whp roughly. Jun 29, 2014 · The main difference is going to be deck sealing and casting rigidity. Jul 23, 2006 · 905 posts · Joined 2005. Feb 11, 2013 · Feb 10, 2013. Lykins Motorsports. 00" main journal while the 302 uses a 2. 0L iron block! The standard price includes a fully-assembled GM LQ9 short-block with a 4. Also this was at 3350ish lbs, on footbrake, with a C4. Long-Block Parts Total (Includes Short-Block Parts): $6,904. The standard price also includes your choice of Wiseco, CP Pistons, Diamond Racing, or Mahle pistons. 1 stroke and 6. All things being equal, the extra cubic inches will reduce the rpm where the motor makes peak power. Jan 24, 2010 · 351W - Weight 510#, displacement pretty much limited to 408 ci unless you're building a small block for your motorhome or tractor pull. a lot of gas. I’ve read through a lot of forums and can’t seem to pin down a good build to base Jun 26, 2016 · 3936 posts · Joined 2007. May 16, 2006 · my 408w includes these parts so far and i am looking at headers and cam for it now. Dec 9, 2021 · how to make more torque from your ls. The standard price also includes your choice of Wiseco, CP PIstons, Diamond Racing, or Mahle pistons. the current most common stroker kits for the 351w are the 393, the 408, and the 427. Mar 21, 2015 · scottydsntknow. Definatly use a roller cam. He has a 70 mustang fastback with a 408 with Dart pro1's (195), edelbrock performer rpm, holley 750vacuum secondary, Comp RF 276 with 513/513, 224/230 cam, 2500 stall and 4. That puts mine at 500-550. Tools & Miscellaneous Total: $371. better plan on cooling it, thats an increase of 35% in heat production. #3. 5:1cr 408 LS with. 2009 G8 GT A6. 0/302, 5. See full list on motortrend. 576lift . The collectors face downward instead of turning back towards the rear of the car. Product Q&A. A 393 with a 3. They are ceramic coated though for $550 through Summit or Jeg's. First, it weights more. Looking to turn about 6300 rpm and trying to build low to mid range torque monster. 75 inch main kit. 98)was actualy 426ci but was marketed as the 428 except for in a few 427 Cobra roadsters which had 428s but were marketed as 427s. 6/11:1 (undecided, would 11:1 work with 93 octane?) rhs 215cc iron heads 2. Oversize Fee:$19. 0L VS 408 LS, 454 VS 489 BBC THEN 408 VS 489 ! Jun 25, 2013 · slowgreen99. Nov 21, 2022 · Unless you're on a strict budget and have some of the parts to build the 393w, go with the 408w hands down, especially when building from scratch as the price difference in parts is almost nil. The pre vious build was rebuilt in texas about 5 years before I purchased it and ran well. 0, t-5, 12. Looks like the 408 is capable of an extra 25-35 more hp NA, and the 393 stroker kit is about $400-$500 cheaper. 4 lb-ft/ci on an "off-the-shelf" build just seems odd to me. Heat has defintely not been issue for mine. They are advertised as being a full-length header but they look more like a 3/4 length. Variations of these engines could be found in GM trucks and vans, F-bodies, Corvettes, and even performance May 4, 2023 · Enter, the . 6/7s with a Victor Jr headed 408, 10. Nov 19, 2009 · 408 camshaft recommendation. 4" eagle cast crank. 00= 408ci. 2004 WRX STi Silver/Blue ~ HPDE WHORE. 050". By Michael Harding June 12, 2019. #12 · Jul 23, 2006. Eagle 408 which has 4. #1 · Sep 25, 2003. We’ve finally completed our 408ci stroker small-block Mopar build for Project Track Attack. 0L VS 408 LS, 454 VS 489 BBC THEN 408 VS 489 ! Dec 14, 2021 Chad Reynolds ENGINE, ENGINES, TECH, Tech Stories, Videos, XL Engine Tech, XL Tech Stories, XL Videos Comments Off on LS VS BIG BLOCK! WHICH STROKER MAKES MORE TORQUE? 6. #1 · Mar 10, 2015. Jun 25, 2013 · 93reefbluegt. While all of this is going on, the internal components are balanced and prepped for assembly. Nov 5, 2013 · So does that mean s475 would be good for a 383w lol I think a s480 on a 408 would be a great choice . 0cc dishes that are okay for use with Twisted Wedge heads. #2 · Mar 12, 2021. Feb 20, 2010 · Carb. The 408 would remain with 3 inch mains. #4 · May 4, 2012. 60" port matched. Oct 16, 2018 · The LS is the third and fourth generation designs of the small block Chevrolet engine that was first released in the 1997 Corvette. Anything under 18/20 initial and the idle quality/vacume goes away. Joe, how about a 393 stroker. Jun 8, 2021 · 8 posts · Joined 2021. 50 index, so will need it to be 8. Go with the Trick Flows thicker deck, flows better with smaller port. 27 with Torsen), dual roll bars, halibrand replicas, SS side pipes, rivet on hood scoop, SAI mod Satisfied customer of: Factory Five Racing, Mike Forte, Breeze Automotive, Whitby Motors, Herb's Door Panels, Cobra Heat, Stewart Transport, Wayne Presley (Very Cool Parts), North Racecars, and Finish Line Jul 24, 2012 · 402 with your stock block, or 416 with an LS3 would keep an aluminum block. The 408 LS offers more displacement than the 383, but comes with the same power potential as the LS3. 3x in the summer heat. LQ9 short-blocks use a new GM LQ9 6. It's not so much the boost level, but the power level. We did a little mixing and matching, but weren’t exactly pioneers in the LA block/Magnum head build. All our pro street kits come fully balanced and ready for you to assemble. Mar 12, 2021 · Mark O'Neal. That's NOT a lot extra and it has a WARRANTY. Feb 20, 2006 · It'sa tried and true design that works pretty darn good. 16. 632 lift solid flat tappet, Victor intake, 727 with 8" converter, 4. 125x3. A 408ci will spool a jurnal bearing turbo well up to a 91mm with a billet or custom light intake impeller and ball-bearing you can go as far as 94mm with quick spool. Current best 10. the 427 is at the limit of displacement for the block. The 480 HP it makes would quickly go over 500 with AFR 205 heads , OR a jump to 10. 5" SS exhaust GFORCE1320 9" coming Apr 23, 2015 · 408w turbo. Nov 25, 2014 · NA 408 ls camshaft ideas? So I had a 408 built for forced induction but ended up putting it in my 66 nova street car, right now the cam is a 234/234 @50 . The GM cast iron LQ4 block is then bored to 4. Nov 11, 2004 · Yeah but the FE 427 (4. I am currently running a stout 351w with a built c4 and four pinion 8" Trac Loc. However, I did experience surging between 1500 and 2000 RPMs, which wasn't good for me since I wanted to be able to cruise on the street. As always, it depends on your wallet and your goals. 04@122 on a broken front Diff. mission viejo ca. By the way, they both use the same piston. I love my 408 windsor but obviously the cleveland heads can make great power as well. 5 peak horsepower at 6,500 rpm and 555. I would think that the 380+ cfm with a 255cc intake runner (tfs), would have better velocity than the 280ish intake runner that the ported ls3 head. My first inclination is to ditch that bottle neck cam which way too Nov 3, 2007 · 380 posts · Joined 2006. 75= 428ci - 4. Paired with a couple of VS Racing 70/70 mirror image turbos, should make plenty of power. A 461-stroker LS-based engine, probably starting with an LSX block is based on modern LS technology. https://w Jan 23, 2024 · One in particular, Jaylon Victorian, was nearing completion of a 408 cid nitrous LS engine. Eagle 418 which has 4. People have so much trouble with flat tappets these deays, that I wouldn't mess with them. Compression ratio is low 11's for now. 030-inches. Mar 10, 2015 · 533 posts · Joined 2010. the shorter stock version for iron heads. D. Apr 16, 2008 · 408 Stroker Camshaft Dyno Test. So I bought a 351w for my first engine build. Dual Chrome Roll Bars/Bumpers/Polished Exhaust, Heater, Wipers, Guardsman Blue with Wimbledon White Stripes. Beyond that the iron just makes sense as the alum is going to move around a lot. Feb 8, 2020 · Hello everyone, I currently have a 1969 Mach I that I have slowly been converting to a restomod. 429/460 - Weight 710#, displacement to 557, but typical stroker is 514 to avoid limiting rpms. I just "prefer" a Holley type of vacuum secondary carb on engines like this. Sep 25, 2003 · 453 posts · Joined 2001. Price $3199. Greg Jones is Content Director and Editor of Engine Builder Magazine. You can see the Jul 31, 2002 · 1989 Mustang LX Coupe, LS Turbo. More stroke of the 408 should give more power lower in the RPM band which would be better for the heavier GTO and Fbody. however, if starting from sctrach, without a block, a 400 based motor is a much better choice. 78) which evolved from the 390 (4. #7 · Jun 26, 2013. Building a 408 running afr 205 72cc 0 deck done the math and with flat tops it's showing 11. Reviva takes the block, cleans them, and then begins the machining process. Iron is much better at that level. 1999 BMW M Coupe - Stock. 400 RPM and 1,119 lbs. #2 · Mar 23, 2010. Dec 14, 2021 · LS VS BIG BLOCK! WHICH STROKER MAKES MORE TORQUE? 6. Honestly, I'd go with a 402 over an iron 408, you aren't going to notice a missing 6 cubic inches, but an extra 80lbs will be noticed. i. I. It the poor man's stroker. of torque at 4,600 RPM with 26 pounds of boost. Other people have experienced 40-55%. Coyote - Weight 421#, displacement very limited by small bore and bore spacing. Total Additional Parts To Complete "Crate Engine": $2,524. Will use either csu or c&s carb. but given the right combination of parts, correct tolerance's, proper build practices and you can have a nice Sunday go to meetin'. Now, if you are okay with surging in that RPM range, then this cam will run its ass off, especially from 3000 RPM and onward. 510/480 417 Darton Sleeved LS3, built by Abacus Racing. The motor was built by Coast High Performance to the following specs: The engine was originally put together with a Comp Cams Xtreme Energy retrofit hydraulic roller, spec'd at 230/236 degrees duration and Oct 12, 2009 · Should i sell my 408w build and put a ls1 in my 89 coupe, So far i have the block machined, eagle rotating assemblies and a tf-r intake, no cam or heads yet. It's not that the alum blocks are weak, but iron is iron. #5 · Feb 4, 2011. 23 X 3. Jun 13, 2001 · I would imagine the 427W might be too much of a stretch, but it seems a 392W and a 408W would be pretty similar in terms of reliability (if I remember correctly, the 392 uses stock connecting rods whereas the 408 has longer rods). 040 over 400 will give you roughly 408" but you better sonic test the block first. 030 is max w/o a sonic test on a 400. 1990 Mustang LX Coupe, White with 408 making 487rwhp/487rwtq (pump gas, hyd cam, EFI). Mar 23, 2010 · 2792 posts · Joined 2007. Napkin math says this will take in the neighborhood of 1250RWHP. 5-1 408 has ( lesser power) x305 heads and an X hyd roller + air gap int. e. Oct 8, 2018 · 408 Keith Craft Engine (512 hp, 534 ftlb), TKO600, Fast EFI, 8. A gold/silver finish plug will be easier to read. For street with occasional track days, you're better off with a hydraulic. 408 Cheyenne tactical was designed to be used with military and law enforcement applications, specifically, in anti-personnel, anti-sniper, and anti-materiel Oct 26, 2015 · With respect to torque, the curve on my engine tops 400 (RWTQ)at 3,300 RPM and peaks at 445 at 4,500 rpm. I'm switching pistons to bump the comp from 9 to 1 to 10. Dart block, scat crank & rods, diamond pistons, afr 205 heads, super vic intake, solid roller cam, crower roller lifters, comp roller rockers, extreme velocity pro carb hat. '66 GT350H-3 time cover car - Car Craft July'77,Modified Mustangs and Fords Feb2011 ( w/article), Mustang Monthly June 2014. Nov 20, 2021 · 1019 posts · Joined 2017. 10 gear, 275/60/r15 Hooiser DR. Nov 13, 2005 · Short block fully balanced, blueprinted and assembled. Click image to zoom. 030 Cylinder Bore. 72' 351w block. I don't doubt for a second that the AFR heads aren't top notch (use them myself), but 1. 1986-045 Saleen Mustang Griggs GR40, 408W RDI aluminum block, AFR 205, T56. Bart. May 8, 2018 · After the freshen up and some new parts, this 408 LS engine is making 742 horsepower and running strong quarter-mile times. 5 gears. A well-known vendor is recommending twin Precision 6766s as a budget setup for my goal, or. Feb 10, 2012 · My 408 build reads almost exactly the same as yours, thanks for posting, I was starting to doubt my choice of AFR-185's, Performer RPM Air Gap, Comp Camx XE-282HR cam with 1 5/8 long tube headers, and 650 Speed Demon Carb for my street rod. He applied his new engine building knowledge and skill set to the build, and it shines through in our latest Engine of the Week. 65' Stang Street/Strip: NA 434w, G101A 4 Spd, 4:56 rear, 9. A light to medium weight car should run a single plane intake, sized in accordance to the rest of the induction and heads i. lbs. 78) evolved from the 406 (4. 408 Cheyenne Tactical and the Barrett . $2,002. Representative Image. 347 revs better and a little cheaper, easier to install cause it's smaller, 351 gets you more torque, can run a clevland style main crank with bearing spacers in the block and make it rev quit happily, and of course you get more displacment which is always good. -ft. 410 posts · Joined 2010. Lastly, the 351w utilizes a 3. Jan 3, 2010. 416. Dec 26, 2008 · A 408 stroker will make 667 HP on pump gas with the AFR 205 heads if you know what you are doing. peak torque at 5,100 rpm. The 408 LS was never offered by GM, but it is possible to find used factory parts for this engine. A 393 and a 408 with aftermarket parts are the same cost. Product images may differ from actual product appearance. I don't dispute that. keith black forged pistons 10. This will support up to 250 shot of nitrous, and up to 15 pounds of Jul 13, 2011 · 408 vs 427 Concerns. 6 ft-. from 3,500 rpm to 4,600 rpm. All Texas Speed & Performance 408 C. A 110 LSA would probably be fine for you. Chris frank has a nice program for the stock ls3. If you want more power we also offer part#HP81 408ci 480HP 495tq, with Dart pro 1 heads, little more of a street/strip engine than the HP21 so street ability is not as good. Published: Jan 23, 2024. I also found dropping the initial timing made it run worse, even when trying to tune it. 5 to 1 and it has 317 heads with a super victor and 750 holley. In factory production form, this platform was available from 293 cubic inches to the 427 cubic inch LS7. 614/0. Before getting Jul 28, 2016 · Our best pull yielded 629. 408 Cheyenne Tactical 10. I would check into header/intake selection on the "clevor" motor though as it probably doesn't have near the available off the shelf type parts. flyfish said: I use NGK R5671A-7 in my 410 stroker (Edelbrock heads, 10. 5 :1 XR286R: mechanical roller 0. Jul 12, 2008 · I know all the Aussie Cleveland alloy heads make best power at 28 degrees as an average, which i also found at the track last weekend. Again its not an all out drag engine but it does well in a 3,200 lb car on the road course. I'm between a 393 and a 408. 19235 posts · Joined 2013. Thanks Trick Flow! Sep 17, 2015 · IMO I wouldn't use a dual plane intake on a 400+ cu in stroker unless it's going into a heavy vehicle that needs a ton of low end torque and has small heads on it. Save Share. 65 F5 Cobra, 5. The idea is that the 408 could be run at a lower rpm and make the same power as the higher reving 383. #12 · Jun 17, 2010 (Edited) Running a 418 LS3 with TVS2300. 500rwtq was avalible from 3,000 rpms up. Go with the 205s. Stock 243's until Aug 2010, I had planned on running L92,s but the walls are to thin-to handle the amount of boost needed for the rwhp that I wanted. 84,” Siebert says. 2013 Nissan GTR, White, AMS Tune. 4x77mm. 75" for a 351W conversion in a 66-70 Mustang (part # D669Y). By Greg Jones. Feb 26, 2017 · It turned out 300hp/367TQ to the rear wheels. Nov 14, 2020 · My 9. See this combo make 540/535rwhp/rwtq on a c6 and the torque curve was flat like stock. 030x4. Which what I was trying to convey, its not brand that really matters a whole lot, its heat range vs compression and readablility. 08 3SS AWD, 4L80, 402ci, LS3 P/P'd, HOB V2 F1D & Meth, lotsa METH!! 1. 0” Stroker (58x) Crankshaft and 4. I'm leaning towards the new Holley Street HP 850 CFM (P/N 0-82851) Looking for comments / suggestions. #1. A CHP 408W GT shortblock is $2,650 USD and has Probe FPS forged 24. Aug 10, 2021 · Small Block V8 (221, 260, 289, 5. cathedral heads, Hi-Ram with a Shearer Fab A2W intercooler sandwiched in it. 587 60ft 11. Since a 408 can hit 500-600whp pretty easily without power adders you really don't need FI. lets just say, these cars have equal blowers (f1c) same fuel, same boost, lets say 13 pounds. CDW6212R and Ownotch. Aug 7, 2004 · So what part # did you buy? It needs to be a 39 series plug to have enough reach to get into the combustion chamber. Rather Be Blown. Jun 24, 2006 · 8,745. Nov 4, 2007 · Doug's Headers makes a 1. 05 with 0. I am looking at two kits. 99. trick flow valves. 125 X 3. Jul 18, 2011 · For a flat-tappet hydraulic recommendation, get an UltraDyne 280/288 from Bullet Cams. 25 rod OR. Huskinhano and rpm. all opinions and suggestions please! Jan 31, 2011 · Turbo size will depend on 1 power you want 2 how fast you want to spool and 3 do you want to make more power in the future without buying a new turbo. In my opinion, if someone owns a 350 block that is a good block, and wants to build a better motor then a 350, a 383 dollar for dollar is about equal and will usually out perform a equal 350. major stump puller or a Jan 1, 2007 · 177. Helping a friend out here. 5 @106. a 408 doesnt cost much more if any than a 393, unles you are using your stock 351w rods and 302 pistons, a 393 uses 302 pistons and stock sized 351w rods, the 408 uses 6. 74 at 125mph. It was definitely a crackhead but still ran your goal E. 2 rod. 66@140. FoxBodyFonz without the fox body haha. 05 X 3. I'd like to Find Parts and Accessories 408 stroker ls KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Final Day! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search 1-43704BI Street Rotating Assembly Kit [GM LS Series 408 ci] Part Number: 942-1-43704BI. I hear that the rod ratio is very poor on basic 408s, does this really matter? Thanks. 75" main. 89:1 compression). 11 gears and he isn't happy with the performance. Nov 1, 2007 · Strapped To The Dyno, Our Fairlane's 408-Inch Windsor Cranks Out 552 HP. 25 to 1 408w with box stock afr205s and box stock vic jr intake with a tko600 went 10. 8 Solid 3. #2 · Nov 20, 2021. Then go for the 408. #2 · Mar 22, 2015. 25 compression. Unless you plan on boosting it. solid depends on use. #25 · Jun 27, 2016. 2006 Viper SRT-10 Coupe, Underground Racing TT, White w/Blue stripes. #1 · Feb 9, 2011. 99 no core needed or required (shipping not included) SOLD 2004 LS1 GTO Black/Red ~ 370ci Iron Block Procharged Monster. May 21, 2014 · My Cogged TVS2300 408 build thread 758WHP/860WTQ <---Dyno results thread Cogged TVS2300 with Powerchamber 408 Stroker Built by AVAS EDC Lunati camshaft Tuned by Andrew at Complete Street Performance Corn Fed New SNL Fuel Hat system Kooks 1 7/8 Headers w/3" catless mid pipes-DMH low pro e-cutouts Spintech 2. The extra displacement allowed the 408 to exceed 500 lb. By reach I mean the threaded portion of the plug is 3/4" long vs. 08/1. Yeah, you have to buy a cam & lifters, timing set, oil pump, yadda yadda. (Image/Richard Holdener) After running the stock cam, it was With the added ARP 2000 rod bolts this kit will support up to 1000 horsepower making this kit reliable and affordable. Mar 9, 2011 · 408w carbed, TKO 600, IRS (3. Goody_Seven said: 4. I plan on building it as a 408 stroker. This vehicle is used approx 50% of the time on the street, the other 50% is at the drag strip. With the additional displacement in your engine, 540 sounds right. Machine Work Total: $925. Features forged pistons, hydraulic roller camshaft, and aluminum heads. 00" stroke crankshaft with your choice of 24X or 58X reluctor wheel. 7 to 1 Forged Pistons designed with the newest technology and Premium Piston Rings for Description. as for block notching, that depends on the parts May 24, 2021 · Run first with the stock (mild) LM7 cam, Fast LSXRT intake, and Holley Dominator EFI system, the 408 stroker still managed to thump out 449 hp at 5,100 rpm and 522 lb. “I’ve only had it out a couple times this season so far with the compression change and with the new carburetor, but it’s gone a best of 9. recommendation for a street driven 408 Looking for a carburetor for the 408 I am building. 621/0. 1106 posts · Joined 2009. com Feb 6, 2018 · 351W - Weight 510#, displacement pretty much limited to 408 ci unless you're building a small block for your motorhome or tractor pull. . The additional stroke provides a boost in power along with better throttle response, acceleration, and overall performance. The 408’s throttle response was scary quick. If you are worried about costeither is going to be a $8k+ build just for the motor. If you measured all of your inputs to static compression, then my hunch is you have a little too much compression, although your alum heads and zero deck Jun 15, 2022 · Here it is! My 408 stroker with all Texas Speed internals. Kit fits GEN III 6. My 408 runs at least 20 degrees cooler than my 302 did. Those are all the same length but different heat ranges. I recently had the engine rebuilt (351w) due to an oil pump seizing. 55 Rear End, FFR Replica Halibrands, 245/45ZR17 x 315/35ZR17, Nitto NT555. 850 cast crank, stock Windsor rods and, and cast 302 pistons is cheaper. 03" Bore with a 4" stroke. If I go with the 383 I would use the Motorsport 2. All competition forged rotating assembly kits come complete with forged steel crankshafts, steel H beam connecting rods, forged pistons, performance pistons rings and H series main and rod bearings. But for comparison sakes the 428 (4. . Sep 17, 2016 · 408 stroker compression. The goal was 1,000 horsepower, but we shot way past that. Jun 19, 2020 · The Short Block. 68 J code sprint, 408W. 2001 HarleyDavidson 230 FAT TIRE Custom. how big can i make an ls motor? does my stroker need a custom cam? what is the maximum displacement of an ls? can an ls make b Feb 24, 2012 · Go 408 with trick flow 235cc and a ported fast 102 w/ nw 102 tb and keep the cam in the mid 23X/240 range. It is also easier to dress up and make look pretty over an LS motor with it's coil packs over the valve covers. vic jr + 185-205 heads, super vic + 205-215 heads, 2828 Oct 31, 2022 · The 408 LS can be bored and stroked to achieve a range of displacements that include 402 cubic inches, 408 cubic inches and 427 cubic inches. each of them has their advantages and disadvantages, and all will make about the same amount of power given the same modifications. #1 · Jun 8, 2021. You may not want to bore some aluminum blocks, and some people want the slightly thicker walls (or the block may not need to be bored). 2. Wordman, the . what would a 370 do. Jan 11, 2014 · While the block strength of the 351 is a great advantage, the engine does come with disadvantages. 7-liter/408 cubic-inch LS crate engine starts like any other build. Thanks. Find Engine Rotating Kits 6. how to i add low-speed torque? does a stroker ls make more than a big block? what happens if you stroke the big block? May 10, 2009 · 0. 1x @ 130mph, but usually runs 10. Dec 13, 2016 · An intake manifold originally designed for a 351-inch motor, for instance, will perform differently on a larger 408-inch stroker. D. 7L/408 Chevy small block Gen III/IV (LS-based engines) Parts and Accessories and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App Final Day! LIMITED AVAILABILITY The 408 Ford is an excellent choice for those looking for a Windsor based stroker engine to fit in place of an existing 351. Jan 19, 2008 · C5 Forced Induction/Nitrous - 370 VS 408 iron block with procharger - just curious guys. #6 · Jun 25, 2013. 78). Dyno guru Richard Holdener recently ran a cam comparison dyno tests on a 351W-based 408 cid stroker engine. Apr 1, 2002 · Low ProfileOur 408 had shown us some serious output with the MP tunnel ram, Crane's smallest catalog roller grind (run using a 1. Dec 29, 2015 · Frankly, the numbers just seem really optimistic for a 408 inch engine, hydraulic roller, on 87 octane. 402 is a 4" Bore with a 4" stroke. 60 @ 127 with the clutch slippin a little out of the hole. As for the 396. 2005 Lotus Elise Ardent Red/Tan. of torque at 3,900 rpm. 6. Went consistent 6. '65 289 4V Edelbrock 1405 600CFM Performer 289 intake C-4 electronic igniton yada yada yada. 576lift with a 114+2 lsa, comp xe lobes I believe. 6. I know that trying to build something reliable and on a budget usually don’t go hand in hand which is why I’m here for advice. Jr's heads Jun 16, 2010 · 531 posts · Joined 2006. My pump gas 10. 408 is a 4. 6:1 rocker ratio), and dual 750 Demons, but we wondered what it Oct 20, 2007 · Application Road race RPM range 3000-6500rpm. 8/351W) - NEW 408 STROKER BUILD, CAMSHAFT SELECTION - I’m in the middle of a 408 build, for my street strip vehicle. A built 408 is going to be little or no more expensive than a built 351. Vic Edelbrock himself will tell you that his 600 cfm carb is a great choice for a 454 Chevy or a 390 / 400 / 428 cubic inch Ford for mild use and economy. View Now. bq lr ig dd kx ar cu zm yl wi