Building the ultimate LSX...what heads?
TECH Veteran
Joined: Dec 2001
Posts: 4,117
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From: Ft. Lauderdale, FL, USA
Originally Posted by ShiznityZ28
The engine builders i trust have said any power adder car should not go over 4.125 . I have also read 4.2 would be doable on an NA motor but would not be friendly to sealing head gaskets!
Ill stick with the guys building legit fast cars and not internet cool guys!
Ill stick with the guys building legit fast cars and not internet cool guys!
Also, "Sled28" built my current 436ci stroker with a 4.125 stroke, people 5 years ago said that was nuts to do with those older LS1 sleeves, now 92,000 miles later and it still runs like a top. Gotta find the right builder, thats all.
.
TECH Veteran
Joined: Dec 2001
Posts: 4,117
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From: Ft. Lauderdale, FL, USA
Originally Posted by TLewis4095
Awesome build! We are just finishing one with slightly smaller turbos that is just over 1,000 RWHP on a pump-gas tune. Yours is gonna be Godzilla in comparison!
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Originally Posted by Quickin
With a 9.7 deck a 4.250 stroke is fine, it's been done to death, your guys (that you trust) will learn that in the future after they gain more experience with serious high power engines, thats if they have the ***** to take the leap into those power levels, like NRE does time and time again.
Also, "Sled28" built my current 436ci stroker with a 4.125 stroke, people 5 years ago said that was nuts to do with those older LS1 sleeves, now 92,000 miles later and it still runs like a top. Gotta find the right builder, thats all.
.
Also, "Sled28" built my current 436ci stroker with a 4.125 stroke, people 5 years ago said that was nuts to do with those older LS1 sleeves, now 92,000 miles later and it still runs like a top. Gotta find the right builder, thats all.
.
Originally Posted by Quickin
With a 9.7 deck a 4.250 stroke is fine, it's been done to death, your guys (that you trust) will learn that in the future after they gain more experience with serious high power engines, thats if they have the ***** to take the leap into those power levels, like NRE does time and time again.
Also, "Sled28" built my current 436ci stroker with a 4.125 stroke, people 5 years ago said that was nuts to do with those older LS1 sleeves, now 92,000 miles later and it still runs like a top. Gotta find the right builder, thats all.
.
Also, "Sled28" built my current 436ci stroker with a 4.125 stroke, people 5 years ago said that was nuts to do with those older LS1 sleeves, now 92,000 miles later and it still runs like a top. Gotta find the right builder, thats all.
.
Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 53
Likes: 0
From: Springfield, MO
Originally Posted by Quickin
Dare I say this, but if you want to talk to the best, I'm sending a C6 Z06 to NRE (Nelson Racing Engines) in about 2 months, they're building a 454ci LSX with twin 88's, 2,300 hp.
Build sheet for my set-up from NRE:
Warrior series
454 lsx intercooled twin turbo dual fuel technology 16 injector intake.
2300hp 2100tq race gas, 1500 hp 1500tq street trim pump gas.
Block: Gm lsx block 9.7 deck
Crankshaft: Callies Magnum 4340 forged 4.250
Connecting rods: Oliver 4340 Billet connecting rods 6.3
Pistons: Je forged pistons, 180 tool steel pins
Rings: Hell fire
Bearings: Clevite engine bearings H series
Valvetrain: Mechanical roller camshaft, 904 size roller lifters, T&D shaft rockers
Cyl Heads: All Pro symmetrical port heads 400+cfm on intakes 6 head bolts per cyl
Induction: Hogan Sheetmetal intake with single mono-blade 1700cfm throttle body. Dual injector per cylinder
Head Gaskets: SCE Copper gaskets
Fasteners: Arp
Oil System: Billet fabrication aluminum oil pan with hv pump and pick up.
Harmonic Damper: Billet cnc damper
Fuel Management: Electromotive Lap top programmable
Ignition: 60-2 Crank trigger with 4 ignition coils
Exhaust system: Stainless Steel tubular ex headers
Turbochargers: 2 88mm turbonetics tang.
Wastegates: Tial 44 mm v-band billet wastegates
Blow-off valve: Tial
Air to Air intercooler: Custom to your application
Valve Covers: Billet fabrication Sheetmetal Billet rails
Fuel system: Aeromotive fuel pump and filters
Warrior series
454 lsx intercooled twin turbo dual fuel technology intake.
2300hp 2100tq race gas, 1500 hp 1500tq street trim pump gas.
Good luck with yours brutha. Gonna be having some fun real soon.
Build sheet for my set-up from NRE:
Warrior series
454 lsx intercooled twin turbo dual fuel technology 16 injector intake.
2300hp 2100tq race gas, 1500 hp 1500tq street trim pump gas.
Block: Gm lsx block 9.7 deck
Crankshaft: Callies Magnum 4340 forged 4.250
Connecting rods: Oliver 4340 Billet connecting rods 6.3
Pistons: Je forged pistons, 180 tool steel pins
Rings: Hell fire
Bearings: Clevite engine bearings H series
Valvetrain: Mechanical roller camshaft, 904 size roller lifters, T&D shaft rockers
Cyl Heads: All Pro symmetrical port heads 400+cfm on intakes 6 head bolts per cyl
Induction: Hogan Sheetmetal intake with single mono-blade 1700cfm throttle body. Dual injector per cylinder
Head Gaskets: SCE Copper gaskets
Fasteners: Arp
Oil System: Billet fabrication aluminum oil pan with hv pump and pick up.
Harmonic Damper: Billet cnc damper
Fuel Management: Electromotive Lap top programmable
Ignition: 60-2 Crank trigger with 4 ignition coils
Exhaust system: Stainless Steel tubular ex headers
Turbochargers: 2 88mm turbonetics tang.
Wastegates: Tial 44 mm v-band billet wastegates
Blow-off valve: Tial
Air to Air intercooler: Custom to your application
Valve Covers: Billet fabrication Sheetmetal Billet rails
Fuel system: Aeromotive fuel pump and filters
Warrior series
454 lsx intercooled twin turbo dual fuel technology intake.
2300hp 2100tq race gas, 1500 hp 1500tq street trim pump gas.
Good luck with yours brutha. Gonna be having some fun real soon.
That's pretty much the identical setup to the bids I've got so far. Except most of them are at 427cubes... Should be and awesome setup no matter what with that much airflow! I can't wait to get this thing going! 1300hp was getting boring. LOL
TECH Veteran
Joined: Dec 2001
Posts: 4,117
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From: Ft. Lauderdale, FL, USA
Originally Posted by Stang's Bane
It can't have been done to death on a ls motor. ?There are maybe 2-3 of the talldeck blocks out there....
.
TECH Veteran
Joined: Dec 2001
Posts: 4,117
Likes: 0
From: Ft. Lauderdale, FL, USA
Originally Posted by ShiznityZ28
Hey clown! I never said any stroke was bad i told the guy 4.125 bore was about max on a big power adder car. If you have evidence to the contrary post it other wise keep you talk down to you attitude to yourself!
The "hey clown" thing was actually pretty funny too.
.
Last edited by Quickin; Aug 27, 2007 at 01:08 PM.
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Verdad Gallardo TECH Veteran
Joined: Dec 2001
Posts: 4,117
Likes: 0
From: Ft. Lauderdale, FL, USA
Originally Posted by Dubnali
That's pretty much the identical setup to the bids I've got so far. Except most of them are at 427cubes... Should be and awesome setup no matter what with that much airflow! I can't wait to get this thing going! 1300hp was getting boring. LOL
I've never had 1,300 hp, but I can see where SOME of us will always get bored with the power they have and will always want/need more. All I can say right now is that my ~500 RWHP is simply pathetic and completely boring. Its a joke.
.
Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 53
Likes: 0
From: Springfield, MO
I'm waiting on a bid from Nelson now, should get it this afternoon. Petty's bid included the ETP canted valve heads, and Nelson's includes the AllPro's. NRE seems to think that he can make the motor last alot longer than the other shop's and he's thinking it's going to be about $4k cheaper! But he's also like 2 months out... We'll see!
TECH Enthusiast
Joined: May 2007
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I would have Petty build my motor over Nelson.
Originally Posted by Dubnali
I'm waiting on a bid from Nelson now, should get it this afternoon. Petty's bid included the ETP canted valve heads, and Nelson's includes the AllPro's. NRE seems to think that he can make the motor last alot longer than the other shop's and he's thinking it's going to be about $4k cheaper! But he's also like 2 months out... We'll see!
Banned
Joined: May 2007
Posts: 886
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Originally Posted by Dubnali
I'm in the process of building the ultimate LSX engine. It will be an LSX block with dry sump, Callies Magnum 4" stroke crank, GRP aluminum rods, custom solid roller turbo cam, Jesel belt drive, etc. It's going to have two GT47-88's for boost and water to air I/C.
My question is: Do I go with ETP's biggest 6-bolt head? Warhawk's biggest? or the LSW 12deg Hurricane's from All-Pro?
They've got to have 6 bolts per cyl for this application. I'm looking to make 2000+HP
And yes, it's going in the Supra!
My question is: Do I go with ETP's biggest 6-bolt head? Warhawk's biggest? or the LSW 12deg Hurricane's from All-Pro?
They've got to have 6 bolts per cyl for this application. I'm looking to make 2000+HP
And yes, it's going in the Supra!
It really doesn't make any difference what head you use. Anything will work that's why you have a choice between several manufacturers. I can't believe you're coming here with that question? I hope your the young man, I forget your name, that lives in Ohio and Drives a Black Supra; who I have raced; and who has lost to the Ohio Boys in the past. If you achieve a 2,000 hp. Supra engine, can drive and have a big
I look forward to watching your ride soon. Good Luck 
Originally Posted by LS1curious
Alot of custom hardware with that head. Great cylinder head if you afford all the supporting gear !
not for any kind of a budgeted motor.. LOL
Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 53
Likes: 0
From: Springfield, MO
Originally Posted by Jakes Dad
It really doesn't make any difference what head you use. Anything will work that's why you have a choice between several manufacturers. I can't believe you're coming here with that question? I hope your the young man, I forget your name, that lives in Ohio and Drives a Black Supra; who I have raced; and who has lost to the Ohio Boys in the past. If you achieve a 2,000 hp. Supra engine, can drive and have a big
I look forward to watching your ride soon. Good Luck Thread Starter
Staging Lane
Joined: Jun 2007
Posts: 53
Likes: 0
From: Springfield, MO
Originally Posted by LS1curious
I would have Petty build my motor over Nelson.