550 rwhp possible?
FormerVendor
Joined: Nov 2012
Posts: 185
Likes: 0
From: Sacramento, CA
You wont be able to hit those numbers with a factory LS1/LS6 intake manifold. You will need to swap over to better intake.
FAST makes an excellent one.
FAST 102
You will also need a throttle body, and better injectors (if they aren't already installed should be minimum of 42# for your set up).
Injectors (Select from drop down, set of 8)
102mm Throttle Body
Exhaust and the right heads are also key factors to getting the power you need. We had a customer with a ported 102mm intake, 102TB, ETP 245cc heads (remanufactured), roller rockers, custom spec'd cam, 1 7/8 exhaust make 568rwhp (M6). Pretty stout for an NA 383, but allot of work to get it there. It was a top notch build with no expense spared.
Thanks,
Kyle
FAST makes an excellent one.
FAST 102
You will also need a throttle body, and better injectors (if they aren't already installed should be minimum of 42# for your set up).
Injectors (Select from drop down, set of 8)
102mm Throttle Body
Exhaust and the right heads are also key factors to getting the power you need. We had a customer with a ported 102mm intake, 102TB, ETP 245cc heads (remanufactured), roller rockers, custom spec'd cam, 1 7/8 exhaust make 568rwhp (M6). Pretty stout for an NA 383, but allot of work to get it there. It was a top notch build with no expense spared.
Thanks,
Kyle
My cam is a 620/624 lift and has worked ls6 heads and has duals idk wxactly what size long tubes just got car month ago
I figure you're in the low 400s right now depending on the actual size of the cam and how "worked" those heads are.
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500 with that lift can be done but more to then just lift and cam. 550 can be done but it wont be done at a cheap price. and by the way i hit 500 with only 603/596 lift. all about setup......
I dont think youre gonna do it without dropping some big coin on great heads and valvetrain.
Ive got more cubes, a great set of heads, a fast manifold and all the goodies and I can only hope to hit 550 which I think will be a stretch possibly
Ive got more cubes, a great set of heads, a fast manifold and all the goodies and I can only hope to hit 550 which I think will be a stretch possibly
what it cost to do upgrades on my set up
Stroker bottom end 2k
Killer heads 3k
valvetrain/cam 1k (not going to do it with your cam)
intake and fuel 2k
You're going to need to beef up your drivetrain to handle the power and rpms, so 10k is most definitely what you will need to spend.
Do you have the build thread?
https://ls1tech.com/forums/generatio...-job-done.html
I don't have a build post yet. But have callies crank n rods.. diamomd pistons. Slp longtubes. Porred n worked ls6 heads and intake 80 mm tb corvette maf. And u have the cam soecs... 234/247 @ .050 and 620/624 lift 114 lsa