243 heads on 408 stroker. 25" for the High Port) then an AFR head.
243 heads on 408 stroker Its got a callies crank 600 lift cam. Must use 91 octane unleaded This is an occasionally driven STREET car that sees the dragstrip 2-4 Feb 5, 2010 · I made more than that with completely stock 243 heads, and the car is completely drivable. Naturally aspirated 5. My little 347 made 460HP with AFR 185 and a mild cam. I have tried . 3L block out to 3. 243/258 . 5 comp with 66cc patriot heads on it now with stage 3 port job. 4. 035". 243 Black & Silver 2000 WS6 & 2003 Z06. Hands down the quality of these heads, Jul 26, 2016 · The . The heads were the original equipment '894 "X" heads with our 2. 88 and 1. Aug 3, 2008 · What heads would you should i use on my 408 stroker motor. How much Horsepower (HP) is added by 243 heads? A pair of 243 heads adds about 20 horsepower (hp) to the LS1 or LS6 engine. 005" out of deck with the Closed chamber of the RHS heads. A new offering to our product lineup, our rotating assembly kits offer high quality options to turn your 6. 408 Liter?? How many liters is 408 stroker from the 6. 595 113+4 is where id be cam May 24, 2012 · 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. 50 INTAKE 243 EXAUST 257 Dec 7, 2020 · ok, i was off, my 408 passed the 375 mark at 3500 RPM (my readout starts at 2900 rpm and 243 horsies and 442 foot pounds) rumblefish360 said: The equally built engines other than there bore and stroke configurations, the stroker will always make more power, period. 615 115+4. These Cylinder heads are a High-Performance replacement to the GM 243 heads. Mar 7, 2019 · Most kits for the 408 stroker use 6. TSP cam 227/244 . GM’s 243 heads were typically found in C5 Corvette and later on engines like truck specs LQ4 and LQ9. The smallest 351w stroker head we've regularly used has been an AFR 185, which makes in the 500hp range and is a CNC'd, larger runner, higher performing head than an Edelbrock. Aug 10, 2014 · The heads are part number 20-450-58-0 that breaks down to 20 degree 450 horse power 58cc chambers. he wants N/A engine car to put down about 550 rwhp. 070" bore), 3. 5" SS exhaust GFORCE1320 9" coming Feb 27, 2002 · Recheck probe and coast's websites. 613/. 000 crank Scat 4340 H-beams Je Pistons 12:1 or more FTI custom solid roller cam Victor intake Custom Biggs carb Dec 29, 2009 · HKE 408 Xessive Motorsports HPT D1-3. 544rwhp/522rwtq. 596 112+4Ls7 Lifters Thunder Racing 7. 30. duration-edelbrock victor 340 manifold, gasket and port matched to heads-750 Aug 22, 2011 · ok so its a 408 stroker with and ls6 intake, 243 stage 1 tsp heads ,1 3/8 longtubes, offroad y pipe, 255 racetronix pump with hot wire kit,bosch 0280155811 injectors, tick sns stage 2 227/235 cam, 660 btr springs, melling high pressure oil pump ,3. he is looking at the TSP cam and some trick May 12, 2010 · I discovered last night that Mopar Muscle just did a 408 using X heads w/ a 236/242 comp cam w/ airgap intake and a 750dp that made 440hp @ 6k and 495tq @ 5k. BluePrint Engines 408 c. The LS motor with 243 heads is more powerful and efficient. 256/258 deg. Mar 18, 2015 · Svede intake/Comp cam 227/239 . . While everyone has their own opinion a Performer head is a 302 sized cylinder, not a Windsor stroker sized head. 629/. I will be starting with bare block which has been fully tested for the build. 0 iron block, 408 Rotating assembly, 243 heads, Truck oil pan Jump to Latest Follow 2K views Jun 1, 2010 · I will soon be building a 408 Cleveland stroker with the Scat cast crank kit , 10:1 comp. 517 lift hydraulic flat tappet cam (yielded a rock solid racy idle and pulled to 6000rpm) 1-5/8” headers w/3” exhaust, a 10” 3500 Ford 351W 408 Stroker Rotating Assembly Kit, Eagle Crankshaft 4. 30 with a 08-12 intake and a set of long tubes. 408 stroker with L92 heads and intake or a Holley midram, that should cure Aug 23, 2012 · 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. Built Apr 7, 2015 · After that some 243/799 heads milled . By the way, my 350-360 HP iat the flywheel, not at the Oct 30, 2012 · hey guys im new to the forum, and ford perfomance, this is what i have and want to do, any help would be appreciated. 8:1 compression. 00-inch forged-steel crank, matching connecting rods, and forged, dish-top pistons from Probe Racing. The LS engine platform is known for its versatility and ability to handle modifications, and upgrading to aftermarket cylinder heads is a common performance upgrade for many LS engine builders. Mar 16, 2020 · It's just a better bang per buck. 2. Includes 30 month / 50,000 warranty & BPE Dyno Promise. i was going to get the kit from CHP unless there are better ones, i already have an Edelbrock Performer intake,(came on the engine) but would like to switch, looking at the performer air gap my gaol hp is somewere Sep 28, 2012 · 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. Car is solid as-is but I recently sold my s/c C6 GS and I'm missing the power - just going n/a this time. See All 70 Photos PME starts with stock LS6/243 heads straight from GM, they then add their seats and guides Sep 21, 2010 · I am building the 408 C to: 1. Aug 23, 2007 · I have been back and forth on best heads for a 408 build. 0 iron block, 408 Rotating assembly, 243 heads, Truck oil pan Jump to Latest Follow 2K views Jul 11, 2010 · the 383ci ls1 seems to work pretty good, a friend has a c5 that he made a 383 stroker for. Swapping out for an after market LS3 head/solid roller/Tunnel ram/fogger setup. Carb is a Pro-Systems 750 dp (flows about > 800). which helped it tremendously. 65 60' !SC/408] 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. Anyone with 408C stroker experience advice would be helpful. 5. 41 - 1. would probably make you happier when you run hard. Heads are holding me back but on a stock LS2 it should do pretty well. 0L LQ4 or LQ9 iron block?? 10-30-2008 6 Liter 317 Heads. 575 Valves Walbro 255 [11. You can use your existing valves & springs. My final build puts out ~525hp at the crank, 6. BTR spirngs and trunion upgrade. Aug 10, 2021 · Truck below: Silverado 4,240 pounds race weight. Dec 3, 2013 · My Trans am 2002 Ls1 short block with243 heads (not milled)Vindicator Cam 240/244 . 030 243 heads NGK plugs/monster stage 5 clutch/MGW short shifter Future Car: Forged 377 with TVS2300 @ 16-20psi, 2 stage methanol, 50 shot of nitrous, 8. 620 115 LSA /ported and milled . BTR stage 4 ls1/ls2 cam, 12:1 cr This was also posted by the owner, his reply on youtube: Cnc ported and decked down to 58cc 243’s. 18 nitto nt555r in back Aftermarket fuel system prepped for e85 or whatever you want to run (10 miles on this) CTS V front & rear brakes Mini tubbed with g force toe rods and g force tubs widened For heads Id look into a set of L92s maybe ported if you so desire, cam will probably be better as a custom order since the L92s like a wider split cam, and a factory LS3 intake, TB, and injectors (seen them handle 502rwhp @ only 80% duty cyle) will provide plenty of breathing for it as well. So 6. Check out @_trouble_93 WS6 with a TSP 408ci Engine, PRC 243cc CNC Ported Heads, also a TSP Texas Giant Cam Package! Oct 25, 2015 · Stock 243 heads w/ BTR . Ai 218cc CNC'd GM 243 LS2/LS6 Cylinder Head Package GM's #243 casting is a great cathedral head that has phenomenal potential with the right work applied. Feb 9 Jan 27, 2014 · 421ci stroker, AFR 230v2 heads, Kooks coated stepped headers, Corsa catback, 243/247 custom cam and tuning from PatrickG. Stock Stroke PRC 260cc LS3 heads 11. 2 CR TF235 heads Fast 102/102 1 3/4 kooks LT 110 likes, 1 comments - bulletlsAugust 3, 2023 on : "408 stroker going together ! Cnc ported 243 heads with . Dec 1, 2010 · The test motor consisted of a 408 stroker equipped with a forged-steel 4. Btr 4 ls1 cam. Nov 12, 2009 · I know that AFR, ETP, PRC, TrickFlow, and other aftermarket heads are the better, more reliable way to go because of the thicker deck, but are any of you pushing maybe 700+ rwhp with 317's or 243's??? Nov 18, 2013 · Just got this slightly used Ls chevy stroker 408. recently picked up a 05 c6, has a tsp 408 stroker, 243 heads, cam(can?t remember specs), fuel system, built 4l65e, a&a v7 ysi blower on 10-12 psi believe the guy said, maybe Oct 24, 2016 · A 799 and 243 head are the same head. Just curious if the 317 heads flow better than the 243 heads. Oct 3, 2024 · Selecting Performance Cylinder Heads and Camshafts. This engine is built around a 351 cubic inch (5. 660 springs, heavy exhaust porting for boost, softened chambers, not decked. I used stone stock 340 J heads un-ported and un-touched. originally i had a ported throttle body on it with gen 3 intake. 5" SS exhaust GFORCE1320 9" coming May 2, 2015 · Is there anything I have to worry about with an iron block 408 and the ls3 heads? Also, if anyone else has any other information to go along with stroker motors and the Ls3 head conversion or knows of any other threads that would help I would appreciate any info I can get. I was wondering which head should I buy? Im looking for a head that is capable of handling 650hp at the motor or more. 60exh-Hyd. I have seen power gains eclipsing 70 hp when upgrading cathedral-port heads (on a 408 stroker), but the gains were nearly half that (or less) when replacing factory LS3 heads (on a larger 468 stroker). Apr 7, 2017 · Fresh 6. Every thing I read on the 408 stroker talks about 400-450 HP. 25 comp Stage 4 LS3 cam Stock Ls3 intake Stock LS3 throttle body Here’s the heads: i?ve built 408 stroker with 10. com Apr 16, 2008 · Re: 408 Stroker head Test at the strip For drag racing heads, I have seen better heads on a 408 and another lower set of heads with smaller valves and so fourth run at the strip. Jun 29, 2022 · how much power are cnc-ported afr 245 heads worth? are after market ls heads really worth the price? check out this video where i compared stock 241 ls heads to cnc-ported 243 heads to afr 245 heads on a 408 stroker. In constructing a budget 408 stroker, focusing on high-flow GM heads is a must. HP goal is 500 at the crank. Feb 26, 2017 · It's a LS 6. 0ltr . 5cc combustion chamber. With the motor running lean on e85, it made 462whp on nuts, 630 on a 150 with 700lbs of bottle pressure, and 750 on a 200 hit with 900lbs of bottle pressure. Those are huge heads, pretty much the best cathedral port as cast head on a 408, those heads made 700hp with a much bigger cam on an undersquare 4. 25″ 454 Holdner tested. This is my first time messing with an ls. 5" SS exhaust GFORCE1320 9" coming Aug 28, 2018 · Best heads for a 408 Stroker (Magnum) Started by 71cuda#match, August 27, 2018, 01:11:06 PM. 125" rod length. Sounds great, drives on the street pretty darn good. The ford 408 stroker engine is a true engineering marvel that combines power and efficiency in a compact package. Machined - ready for assembly. 624/0. 622" stroke, 243 64cc heads, flat tops with -3. 025" and the pistons would hit the head over 5200rpm. They are the lungs of an engine, while the brain is the camshaft. Our 218cc CNC work is a good choice for guys who would like a bit more gain than our Performance Rebuild, but are not inclined to port the casting to its potential. For a street car, this design means excellent throttle response, torque and average power. Jun 30, 2019 · C5 Tech - 6. 000 Windsor Main*, Balanced Assembly Apr 30, 2010 · So I was thinking of just having my stock 243 heads ported and polished. 4:1 compression Here are a few shots of the parts as delivered: The assembly process starts by measuring all of the crank journals. 5cc - SRS Piston scat 4" cast, crankshaft scat I connecting rods mopar purple cam P4120230 COMP Cams Pro Magnum rockers edelbrock rpm airgap intake holley 750 db and the heads i am using now is, 360 G "4027596" with 1. 000 Stroke, Eagle H-Beam Rods 6. 905 then adding a 4. The block was prepared the same as in Test 1 and 2 with the 360/408. 00" intake valve, 210cc intake runner, a 1. “One of the engines we recently did is a naturally aspirated 408 LS engine that’s carbureted. I'm planning on boring the block for a N/A 408 build. Apr 2, 2021 · On my 360 based stroker I used a Blueprint short block (9. What do you guys think Heres the article if anyone's Feb 4, 2022 · If going stroker you can go more mild on the induction setup and make the same power at a lower rpm. Twisted Wedge heads have a shorter intake port (1. Here is net info Ported Canfield Intake 133 191 243 276 288 300 Ported Canfield Exhaust 102 152 185 206 216 221 More net info… Aluminum 192CC Canfield SBF Heads 58CC chamber Part Number 20-450-58-0 Jul 31, 2010 · Pedders XA Track 1, Patriot/Zamora's Racing Heads Mission, TX Stage 3 243 Heads, Forged 403 Eagle ESP Stroker, TSP Cam, Heavily Modified LS2 Intake, P&P TB, ASP-UDP, Kooks SS w/ catts, Magnaflow Cat Back, Vararam, Drilled & Slotted Rotors w/ Ceramic Pads, Difftech 3:91 w/KAAZ, G Force 1320 Toe Links, Driveshaft Shop Stubs-Half Shafts-Driveshaft, Circle D Pro Series Converter and Transmission Aug 14, 2014 · 408 stroker Ls3 head 591 596 cam 220 duration 110 stroker kit was ordered. even if you want to stay with cast iron, there are good aftermarket heads available. Nov 16, 2017 · Hi all. 030" is the limit on a 4' stroker. Aug 4, 2018 · Putting higher flowing heads would only find the next bottleneck in the inlet tract if you keep the existing pieces You must consider the entire "system" and not just one piece. 302 parts will make 302 power. 8L) base, customarily utilizing a stroker crankshaft that extends its displacement to an impressive 408 cubic inches. 4"-11lbs MSD BAP VIG 4000 Kooks LT 1 3/4 + 3" Mids + 3" Cutouts ET Streets 26x11. Ours: 2004 GTO - 408 (K1, Eagle,Wiseco 11. Jul 30, 2022 · The Livernois heads are an upgrade over stock 243's but nowhere near as potent as CNC ported and milled LS3 heads. I have 340 TA heads 3462848 Date code 02170 or should I buy some Edelbrock This is what I have 360 bored 30 over JE dish pistons Clay Smith Cam custom grind Eagle Cast Crank Eagle forged rods Air gap intake 770 Jan 2, 2013 · hey i need some help choosing heads for my (360) 408 stroker. Suit the 5. now i?ve upgraded to a 4th truck intake with the stock 4 bolt throttle body and torque rush x link. 77 @ 114. Not planning on one anyway. 55" exhaust valve, 75cc exhaust runner, and it has a 64. This is in the engine probe 408 Flat Top -5. Also, I have a torque v2 cam in my current engine right now. 7cc Flat Top Fits TFS Heads, Fits 1 or 2-PC Rear Seal, Rings and Bearings Included, *3. You could always take a 6. 5 rockers and push rod oiling. Think they flowed like 308 @700 lift. If you don't mind waiting a bit, I am going to be selling my fully ported 243's w/ . The 243 head would fare slightly better than the 317 thanks mostly to the increase in compression, but would not catch 1998 Trans Am WS6 - Phantom 421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk To that end, we assembled a 408 stroker that offers more cubes, more cam, and more compression than a stock LS1, LS2, or even LS6. Dec 21, 2009 · no idea on those particular 243 heads but my 408 with a 244/248 xer cam with katech 243's puts out 536 rw with a fast 90/90. 561" | LSA114+4 are the specs. ” WB Ute 408 stroker LS2 with CnC ported 243 heads with big ferrera valves, flat top JE pistons, 11. 5" SS exhaust GFORCE1320 9" coming Feb 6, 2010 · Gloss Black paint! LS3 418, L92 heads, LS3 intake, custom cam, Fast 46 injectors, Kook's long tube headers, Kooks catless mid pipes, DMH e-cutouts, Monster 5 + lw fw, 3. 03 bore 6. My heads aren't ported but are studded and torqued to 90ft lb. but at WOT my KPA starts at 97 at 2800 rpm and tappers Jan 21, 2011 · Nope, KB 416. 5:1 COMP RHS Heads: INTAKE 299 EXAUST 319 Lift @. 7 LS1, heads and cam combo with a 4l60e. 42 rear gear ,4l60e with a 3000 tc. Jun 25, 2019 · The 243/799 heads are the sought-after factory heads due to their size and flow data. I find the 408 stroker to have a wide power band and Scat Rotating Assembly Add cubic inches to the swapped 5. I think there is a member, with I think a white dart that is useing trickflow heads with comp 1. Jun 8, 2024 · You can use the Trickflow heads with out having to buy the $$$$ Harlandsharp rockers. 030", line honed, and decked. Left the coyote world and joined the dark side. Dyno tests have proven that comparable aftermarket cathedral port heads […] HOW TO BOLT ON 73 HP TO YOUR LS! DO PORTED HEADS ADD POWER? SHOULD I USE PORTED STOCK LS HEADS OR AFTER MARKET LS HEADS? SHOULD I UPGRADE MY LS HEADS? HOW MU Mar 20, 2014 · There will be no power adder. 400 pushrodsStock head gaske Dec 6, 2018 · I built a 360 based 417 in 1999. Jun 3, 2022 · The LS6 engines from 2001-2006 have 243 heads. I've seen 5. Like many times before this project started with the heads. 627/. 251/259 660 lift 114+3 TSP cam. 571"/. #lq9 #lq4 #408 #lsswap" Dec 5, 2024 · check out this video where i demonstrated what a cylinder head upgrade is worth on several different ls engine combinations, including a 600+ hp cathedral-port, 408 stroker. Therefore a decent job was performed on the stock J heads before the 408 concept had been born. Also the 185 heads I have are the older style and the new ones flow even better. 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. Sure, you can build a 383 stroker by boring a 4. 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 JOE SHERMAN RACING ENGINES Feb 8, 2020 · 408 Stroker build (what heads) Thread starter Mach1969; Start date Feb 9, 2020; Tags 408w engine head M. That's too much for my driving style. I dont plan on racing but want to enjoy some tire smoking fun and suprise a few onlookers. 624 lift on a 114 LSA-Hardened pushrods -OEM LS2 timing chain Aug 27, 2012 · AFR 185 heads on a 408 are a little small but that being said I have a 408 with them and it made 517HP so those little heads can support some power. I recommend a fast 102 before wasting your time on stock heads. If I was doing it again I'd back the cam off to around 212/220, and run a wider LSA like 115 or 117. but as noted with the advent of aftermarket windsor based heads, there is no need to use the cleveland heads anymore. 050 and 0. Quench on this engine was . I add some different things to the log hope they are what I need. Our go-to choice includes the L92/LS3 blocks, known for their rectangular-port heads which significantly outperform the earlier cathedral-port designs, especially in a hi-po LS setup. Wait a couple of weeks, Chilly and Drag are getting ready to dyno a couple of 408's with AFR heads. 100-1. All factory mounting points with the Performance of the 243 port and chamber. 650" Lift Springs COMP LSR CAM-247/263 duration at 0. Nov 11, 2022 · Most of the stroker Clevelands we've done have been with aluminum heads (Ford Motorsport A3 high ports, Ford Motorsport C302B high ports, Brodix BF300 high ports, CHI 3V and 4V, TFS 2V, etc. Mach1969 New Member. WB Ute 408 stroker LS2 with CnC ported 243 heads with big ferrera valves, flat top JE pistons, 11. 0 Members and 1 Guest are viewing this topic. I made 483/436 with a stock bottom end and ported 243 heads, and I see a lot of strokers that barely break 500. With the latter year magnums . 3's with a 799 head on one side and a 243 on the other side from the factory. 92” intake valves, 750 DP w/no choke on an Air Gap, a 280 advertised, [email protected]” . Built BluePrint Engines 408 c. 125 should be fine Fastback ,,,, sounds like a cool engine, I have the 58cc 185 heads, not sure if that makes a difference or not. m6 and a 9" in a 3,000 lb car even with those heads it will still be a strong setup. 890" intake valve, 200cc intake runner, a 1. thing idles at like 400rpm lol Jan 14, 2022 · LS1 LS2 CATHEDRAL PORT - 243 CYLINDER HEADS. Oct 18, 2010 · When comparing AFR heads to Twisted Wedge heads you cant compare intake port cc sizes. 00-inch stroker crank, forged rods, and dished pistons (-10 cc) from Probe Racing. Apr 3, 2010 · LS3 aluminum block (4. I got a killer deal on some TFS heads and going to have them ported for a NA build. just my $. I have a 360 motor ready to rebuild so what I’d like to do is build the bottom end for this year re using my 360 heads and intake. “We’re all into racing and we live, eat and breathe this stuff,” Siebert says. The heads were not ported and were just treated to a really good recondition job. 0, bore it 30 over and have a 370ci. 7 rockers, but the heads and springs were not changed, which sadly i only found out about after the retainer gave way. Before running the head test, it was necessary to upgrade both sets of heads with new valve springs. 125″x4. Feb 8, 2020 3 1 1 Fayetteville NC. 3 with 0 piston deck now, but may use thinner gasket and take a little off the top of the L92 heads for up to 12. 051" GM MLS head gaskets. When I'm ready for more a new cam and heads. May 11, 2024 · C5 Tech - C5Z 408 stroker build - Hello all, I'm in the beginning stages of putting together an LS3 based 416 for my 04 Z. Sep 29, 2008 · Dart 225 heads fully worked by PMFL, FTI StreetSweeper cam 236/240 . roller cam. I’d love to build it over 2 years. 00 stroke 4. 5. What I did was measure each journal (rod and mains) in 4 places, then averaged the results. my buddy is doing a 408 stroker build here soon. Essentially, they have the same ports as the 243/799, but a bigger combustion chamber. 200, Diamond Pistons -7. 55" exhaust valve, 70cc exhaust runner, and it has a 61. First up was the 408 stroker, which was achieved by starting with a 6. Better utilize the large port heads 3. . 8L WITH TFS 205 HEADS. It makes 740 horse naturally aspirated. Don't know the cam specs but, a buddy built a 408 for a customer this summer and it made 535hp with stock vic jrs. 0L iron block from an LQ4. 650 springs, seats, and retainers Melling oil pump LS2 oil pan LS6 intake 11. Even a 40 hp increase would be a reduction in the hp/ci ratio. Fast lsxrt. Proving that a well-executed parts combination can sometimes overcome a displacement handicap, this 383 produces horsepower and torque figures on par with those of many 408- and 427-ci stroker motors, all while burning 91- octane pump gas. The better head motor pulled harder out the gate to about mid track, then the smaller valve less expensive heads, reeled him in and won the race. 91's, Gforce Stubs, Axles, Aluminum drive shaft, large array of suspension, nitrous. com, the official Jun 7, 2017 · In the realm of stroker Gen III/IV small-blocks, a 383-ci motor is a bit on the small side. Jun 24, 2012 · My car is making 515rwhp on a 408 stroker with a 233/240 600 112lsa cam. Both valves had 11/32" stems. 2 block into a 400+ cubic inch torque monster. They now offer cnc ported vic jr heads on their sites for your application. Thread starter scampmehard; My roller assembly is all forged with 10. Nov 14, 2022 · how much power are ported heads worth? how much power are rec-port ls3 heads worth on a 6. 0 non cnc ported or 1 was cnc ported. 8 comp, Lunati crank and H beam rods, big cam. Jul 7, 2011 · Pedders XA Track 1, Patriot/Zamora's Racing Heads Mission, TX Stage 3 243 Heads, Forged 403 Eagle ESP Stroker, TSP Cam, Heavily Modified LS2 Intake, P&P TB, ASP-UDP, Kooks SS w/ catts, Magnaflow Cat Back, Vararam, Drilled & Slotted Rotors w/ Ceramic Pads, Difftech 3:91 w/KAAZ, G Force 1320 Toe Links, Driveshaft Shop Stubs-Half Shafts-Driveshaft 400+ stroker rotating assembly kit *NOTE* BTR piston sets BTRP402098DS8-8 and BTRP408098DS8-8 use a stock connecting rod. Does not get much traction when it gets into boost on the street. A 408 cubic inch engine making 350-360 HP will be just fine for me. Save Share Dec 5, 2024 · It started off with a video on oversize throttle bodies, then went to intake manifolds, and now we’re talking about cylinder heads. has anybody did a 408 stroker N/A and whats the max amount of horsepower anybody has got within a reasonable car. 6500 rpm max. 8L? appeared first on BangShift. Lesson learned! Nov 30, 2009 · Here's my build: 408 Stroker , short block built by Hughes Engines-Forged internals, H-beam rods, 10:1 pistons-Hughes Engines main stud girdle-7 qt moroso pan, high volume melling oil pump -Edelbrock heads, with Hughes Engines stage III porting, 2. The 706 heads have a small intake valve and combustion chamber. Aug 6, 2020 · Yeah, I understand, I've been through your shoes years ago. It's the first 408 I've seen dynod w/ X heads, but I was honestly expectin more hp/tq. So […] The post TURBO LS PORTED HEAD TEST. I figured I'd document it and also seek guidance/recommendations along the way. 88-inch intake valves May 8, 2018 · All of the block, head, intake, surfacing, boring and honing, seat and guide work, balancing, etc. 610 w\ full cam kit, Edelbrock Vic Jr manifold with custom elbow, 48lb injectors, Custom CAI with raim air scoop,Kooks 1 7/8 longtubes catless with custom H-pipe and 18inch, sweet thunder muffs in 04 location. 610 . Longtubes. BC's, Lovell's bushings, VMR V701's. I plan on putting this into my 69 camaro after a freshen up for mainly street use. 050 lift, and compression around 10 to 1, you're looking at around 450-500 hp with very good street manners and pump gas. 88-inch intake valves WB Ute 408 stroker LS2 with CnC ported 243 heads with big ferrera valves, flat top JE pistons, 11. 6 Roller rockers. Few more beers and LS3 heads ordered. 600 112+2 cam. 75:1 compression ratio. It has an ls6 intake and ls2 tb I believe. 030 over Scat 4340 4. Apr 29, 2017 · 408 LQ9 Stroker prc 243 heads 4l60 RPM Stage XII trans (10 miles on refreshed trans) Built rear end ruff racing 18" staggered wheels and tires 335. 25" for the High Port) then an AFR head. 7ltr and 6. Marla - 427 Stroker 452whp/478wtq Sold '92 GMC Typhoon #2128 - In recovery. 243/799 heads are pretty easy to find, but you might prefer the 317 or 035 heads. Bring rpm level down to 3ooo-6000 rpm (peak about 5800, shift about 6300. i have a 75 351w that i would like to turn into a 408 Stroker. 2 with 243 head - Looking at picking up a forged 408-416-429 ls9/ls3 block will my 243 heads and stock exhaust manifolds, steam pipes , s/c and all that hook up well? Having it built 24x to make it easier. I would be interested to see what Chris frank could do w the gen x 255 head Lq4 block bare told it was bored 30 over to do a 408 stroker and then stock 243 heads lq4 block and 243 heads - Car Engines & Engine Parts - Alvin, Texas | Facebook Marketplace Facebook Sep 15, 2006 · I am not saying the RPM won't take you to 6500 with a 408, I am saying that a Vic Jr. which heads offer the best bang for the buck? if you are looking to build a 600-hp, 408 stroker-this head test is also a good recipe. 8 engine in your 1979-1995 Mustang with this 408 stroker kit from Scat! These Scat engine rotating assemblies are a perfect basis to build your new power-plant on. Sep 25, 2017 · 415 LS3 Stroker build with cathedral-port AFR Heads dyno test - 597 hp. 0 compression. The result was a seriously stout short My 403 has forged internals, flat top pistons w/3cc relief cuts and currently a Polluter stg cam and stock 243 heads. ” However, their thin cross-section allows for a high-velocity and smaller-volume runner design with excellent flow. Here is my plan: 72" 351w block. small block Ford style stroker crate engine - longblock. The block is an ordinary LA360 that is . small block Ford style stroker crate engine - longblock with fuel injection. Decent sized carb like a 750 or 800 and a cam with about 240-245 duration at . When trying to reach 500-600hp with a 408, most builders would opt for the 205 heads as the 408 will have sufficient enough torque to ensure good daily driveablility, assuming the correct cam is chosen. See what it brings May 30, 2012 · If you are really serious about the 408 stroker, the 4v heads will compliment the build. Sep 24, 2015 · Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being “old-tech. 8L/5. 576/576 lift int/exh. 0l? does a 408 stroker need bigger heads? can i run 317 heads on my Apr 2, 2023 · These are the @wilkesperformance8758 CNC'd 243 heads that we installed on my 408 stroker build for the 99' Trans Am. I just May 24, 2021 · I would guess that the engine has reached the point of diminishing returns on duration for the cylinder pressure, heads and displacement with those heads. Sold as a Pair - Bare. 8 rear, Level 7 4l65E, Solid one piece driveshaft. A&A V3 Ti, 803 rwhp @ 6500 on e85, 10 lbs of boost. 75" vs. 660 springs and new oversized valves . I'm getting an LQ9 block, a set of 317 heads and the intake that comes with them for 400$. 030-over 408 stroker short block also featured a new timing chain and oil pump from Speed Pro, a set of ARP head studs, MLS head gaskets from Fel Pro, and a Moroso oil pan and windage tray. Built. I’m really trying to figure out how I should build a 408 stroker. The exhaust remained our #1014, 1. You just have to use a rocker that will allow push rod oiling. Apr 4, 2011 · Eagle 408 Stroker with stock LQ4 aluminum heads (mild porting) 10:1 compression ratio 224/220 Comp Cam Fast 102 Intake Manifold (ported) Fast 102 Throttle Body Precision 42lb injectors Fast Billet Fuel Rails Fuel pressure set at 61psi AEM Intake with stock MAF (Will we need to upgrade the MAF?) Stock fuel pump (for now, have a walbro 255 Jun 29, 2014 · Chris frank has a nice program for the stock ls3. Sep 26, 2024 · 408 LS Stroker Engine Build & Dyno Test. I am looking for a streetable 425 hp to put in my Mach1 FMX. 2L with GMPP CNC LS3 heads, 220/228 . May 16, 2022 · Budget 408-Inch Stroker Ford Windsor Makes 535 HP On Pump Gas! After penciling out the math with the pistons and head chamber volume our 351W stroker ended up with a 10. Aug 11, 2012 · 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. HOW MUCH ARE PORTED HEADS WORTH ON AN LS3, 408 STROKER OR TURBO 4. Not to mention the a narower power band. The 317 and 035 are the heads used on all LQ9, and aluminum headed LQ4 engines. Just like the 356 but the dome is already milled down. A 170cc twisted wedge has a similar cross section to a 185 AFR head and is similar to a 192cc High Port head. Sep 21, 2009 · 2004 a4 stroker ?s Jump to Latest 2K views 9 replies 8 participants last post by Coop6 Dec 27, 2009 Apr 1, 2009 · Think 351 stroker, not 302. Only thing its missing is a trans brake and mini tub. The carb is just for dyno testing. Holly low rise sniper intake, 1000cc injectors 100lb/hr. home ported heads (might be LS6 heads and not the 241's, dont remember) and a big cam netted him a little over 500whp N/A. Recently dynoed at 460 rwhp/450tq on a Dynojet. I have a 72 Swinger with a 318, Air Gap and 1. Dec 20, 2009 · Compression Goal - 11. , > 4V cc heads (bowls cleaned up, minor short side work, screw-in > studs/guideplates, Milodon stainless valves). 0 or 6. Cylinder Head, L92 CNC Ported, Manley Valves, 0. 25:1 comp Stage 4 or 5 LS3 cam LS3 Holley high ram Nick williams 102 or 105throttle body Stoker kit to 408 PRC 260cc LS heads 11. 600/. ), it is difficult to improve upon the power output of the already impressive factory heads. I like the idea of the thicker deck for nos on the tfs. Need MORE VACUUM for brakes, but still want POWER 4. shooting for 470ish rwhp daily driver. Intakes I have are Blue > Thunder dual plane and a Torker. i. Jun 11, 2024 · Which intake manifold and carb will complement the recommended heads? Shorty headers OK ? I need good ground clearance. 625" valve. I have some solid bushing trunnion stock rockers I may sell with it Jul 8, 2011 · 408 Stroker. I ALSO TESTED THE GAINS OFFERED BY REPLACING THE STOCK 706 HEADS ON A TURBO 4. I'll most likely be switching over to LS3 heads & intake with a custom grind cam. Jun 22, 2021 · Unlike cathedral-port heads (706, 317, 243, etc. 00" for the twisted wedge vs. 8ish CR) mildly worked over EQ heads with the stock 1. Nov 10, 2014 · Generally, It seems stroker builds don't produce power as efficiently as stock cube motors without a more stout top-end setup. Jan 3, 2025 · Aftermarket cylinder heads typically outperform stock heads on an LS 408 stroker engine. 60 valves. At one time I had an LQ9, and bought and sold lots of parts, including 243 heads. 88 360 J Heads. 5x16 Fluidampr UDP Pedders 5/16 Rear Springs LS2PortWorks Ported TB + Intake Super Servo SLP 180° Stat NGK TR8 Plugs XMS Blower Cam LS2 Ported Heads 2. We are among the largest LS and Gen 5 LT1/LT4-specific shops in the country, and we machine and assemble all of our engines, camshafts, and Precision Race Components cylinder heads in house! We also have a complete line of Texas Speed & Performance crankshafts, connecting rods, rocker arms, long tube headers, exhaust systems, and more. 76:1 comp), Trickflow 220 Jan 20, 2010 · The motor was recently rebuilt before I acquired it, including bored to a 408, Eagle Rods, a solid compcam and lifters, pushrods and Hartland Sharp 1. 2 rods. But now I'm considering upping the boost to 20# and getting in the 900's. The 408 has a 4. The ported and rod modded LS3 intake manifold is a good bang for the buck too. Jul 11, 2010 · the 383ci ls1 seems to work pretty good, a friend has a c5 that he made a 383 stroker for. Set to . I used the MP 340 replacement camshaft, and even ran stock early 340 manifolds. I was told EFI will add about 10%? Jan 28, 2013 · My 408 with L92s made "low showing numbers" but ran very well at the track. is done in-house. Jun 2, 2014 · Curious to see how much power people are making running the 317 heads and how much boost their able to squeeze through them? I currently have a set on my 408 stroker and So far Iv made 733hp @ 13psi. 02 Mar 21, 2010 · Advanced Induction ported 243 heads Flowtech cam Kooks 1 7/8 LT's 427 Stroker 452whp/478wtq Sold 2004 M6 LQ9 408 11. Mar 1, 2021 · The 706/862 cylinder heads come with a 1. If you would get the 243's off a LS2, then they will have lighter valves and stronger springs. Feb 16, 2016 · Currently have 243 castings on my Texas Speed 408 stroker, as far as I know the have not been machined. How much power would you expect? Here's a video of the dyno. 05 intake, 1. 02" valve #1006 then, now it would be a 2. 0L block, you get 408 cubic Aug 23, 2021 · C6 Forced Induction/Nitrous - 408/v7 ysi questions - Hello, first off, very new to the ls world. 1. 030-over 6. Jul 9, 2012 · "If you are going to change the cam and the heads at the same time, I'd go with a 239/243, instead. gmhightechperformance. Jun 26, 2016 · OP, back in the old days if you wanted big power, you used the cleveland heads, as even the smaller 2v heads would make big power. Not the best for a 408. Only at www. I am useing the PRW 1. Sep 1, 2009 · We finish up our 408 LQ9 budget engine build by installing a Comp camshaft, hardware from Scoggin-Dickey Parts Center and LS3 cylinder heads. " Torque production from the stock-headed 408 stroker exceeded 500 lb-ft from 4,300 rpm to Nov 19, 2024 · Understanding The Ford 408 Stroker Engine Design. 5:1 compression, 243 heads and tick performance tow max stage 2 cam 214/224 | . 605/. 2cc valve reliefs, 0. combo will use a 228r cam, ported 243's, and ported LS2 intake & tb, ngk tr55ix plugs. The 243/799 cylinder heads come with a 2. 0 stroked to 408 with a mild cam and ported 243 heads with 10. 0 inch stroker crank in a 0. 0 inch stroker crank, but if you stuff the same 4. Previous topic Next topic. If the flow rate is the same, of course I could use the 243's. May 23, 2005 · Texas Speed 408 Stroker w Lunati crank and Weisco pistons, Dart Heads/F1a Procharger @ 16lbs, SLP longtubes, Injector Dynamics Fuel Injectors, Scorpion roller rockers, Centerforce dual disc Dyad clutch, Driveshaft Shop 9" rearend conversion,AIS alcohol injection system, Autometer gauges & shift light, line lock, HP Tuners, drag bags, rolled Dec 15, 2024 · I have a 408 with ported 243 heads. right now he is looking at a vengeance racing ls2 408 stroker and trying to get as close to one of their builds as he can, his own way. Aug 7, 2003 · Im planning on building a 408 stroker motor for my race car. May 21, 2014 · Texas Speed 408 Stroker w Lunati crank and Weisco pistons, Dart Heads/F1a Procharger @ 16lbs, SLP longtubes, Injector Dynamics Fuel Injectors, Scorpion roller rockers, Centerforce dual disc Dyad clutch, Driveshaft Shop 9" rearend conversion,AIS alcohol injection system, Autometer gauges & shift light, line lock, HP Tuners, drag bags, rolled Oct 28, 2013 · On stock 243 heads 26 degrees of timing is a good safe absolute max to stop, and 28 degrees on LS1 heads. 10. ) but this one was the first in a long time that retained the 1970's era OEM cast iron 4V heads. Only work on the heads was new valve guides. 05" valve, #1007, for improved flow curve like in the '596 used in the 360/408 Test #1 and #2. owxybic oqiwlfx wksn zxntmt ansoxmqi jyn qpldi zfczv rabynca znr