Ls1 engine rebuild critique.
Ls1 engine rebuild critique. I have a 99 Trans Am with T56 and 3.42s.
Engine is being completely rebuilt, with small bore .01-.02 over
Full Porting and polishing 243 Corvette heads, multi angle valve job. and milled .030
TPS 228/232 112 lsa cam, PRC.650 dual springs, chromoly hardened rods, Ls7 lifters
Air lid, fast intake, fast throttle body, Mac long tube headers, no cats, y pipe, borla dual exhaust.
Going to be dyno tuned. What kind of number do you guys think it wil put down? I'm hoping for 430-450
My factory clutch is ok....but will it handle this kind of horsepower for long? Should I upgrade the slave cylinder and throw out bearing?
This is my daily driver and I want a lot of torque and Streetable power.
Engine is being completely rebuilt, with small bore .01-.02 over
Full Porting and polishing 243 Corvette heads, multi angle valve job. and milled .030
TPS 228/232 112 lsa cam, PRC.650 dual springs, chromoly hardened rods, Ls7 lifters
Air lid, fast intake, fast throttle body, Mac long tube headers, no cats, y pipe, borla dual exhaust.
Going to be dyno tuned. What kind of number do you guys think it wil put down? I'm hoping for 430-450
My factory clutch is ok....but will it handle this kind of horsepower for long? Should I upgrade the slave cylinder and throw out bearing?
This is my daily driver and I want a lot of torque and Streetable power.
Last edited by Fullblast; Nov 19, 2015 at 04:22 PM.
I meant to say .001 or .002.
I bought it used and it went on me the next day.
It had a blown head gasket and cracked piston. I got it for pretty cheap.
Change of plans.....I just told them to do full porting on the 243s.
I bought it used and it went on me the next day.
It had a blown head gasket and cracked piston. I got it for pretty cheap.
Change of plans.....I just told them to do full porting on the 243s.
Ditch the Mac's and go with Speed Engineering 1 7/8" headers and their ORYP. Add an electric cutout before it goes over the axle if you want more sound and about 7-8 more RWHP. Id also suggest calling Thompson Motorsports for a set of their hand selected LS7 lifters that have had the bleed down rates verified. Im running them on my setup following Kyles preload #'s and the setup is dead quiet. It also carries to 6800rpm nicely with no valve float. Realistically if it puts down 420rwhp that will be good.
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Verdad Gallardo Should I upgrade the clutch since its out? Can I keep the stock flywheel if it's ok?
Which clutch is a good upgrade. They have Spec stage 1 and 2 for a decent price. Are this good clutches?
Which clutch is a good upgrade. They have Spec stage 1 and 2 for a decent price. Are this good clutches?