LS2 / 403 Piston Recommendations
#1
LS2 / 403 Piston Recommendations
I'm building a 402/403 using a new GM LS2 block for my '02 Z28. The car will be a Power Tour / fair weather driver with a road race thrown in a few times in the summer. CR will be ~11.7:1, no nitrous or boost. I'm using a Compstar 4" stroke crank and 6.125" rods. I'll bolt-on my existing PRC LS6 heads. For pistons I'm leaning towards a 4032 flat-top forging like JE/SRP #279585. I would think reduced piston-to-wall clearance will keep the piston from rocking at the bottom of the stroke. I don't need a noisy oil burner. Let me know what you guys think of these pistons and / or anything else you recommend.
#2
I'm building a 402/403 using a new GM LS2 block for my '02 Z28. The car will be a Power Tour / fair weather driver with a road race thrown in a few times in the summer. CR will be ~11.7:1, no nitrous or boost. I'm using a Compstar 4" stroke crank and 6.125" rods. I'll bolt-on my existing PRC LS6 heads. For pistons I'm leaning towards a 4032 flat-top forging like JE/SRP #279585. I would think reduced piston-to-wall clearance will keep the piston from rocking at the bottom of the stroke. I don't need a noisy oil burner. Let me know what you guys think of these pistons and / or anything else you recommend.
#5
https://www.onallcylinders.com/2019/...s-engine-easy/
#6
Racetech Forged pistons = OK
Hi 855, I can supply a Forged Racetech piston (4032).
I have done this often with a 4.0" shaft and 6.125" rods.(flat top piston)
A TOP Quality part at a FAIR price.
Lance 949-250-1797
I have done this often with a 4.0" shaft and 6.125" rods.(flat top piston)
A TOP Quality part at a FAIR price.
Lance 949-250-1797
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#8
I need your help
I'm building a 402/403 using a new GM LS2 block for my '02 Z28. The car will be a Power Tour / fair weather driver with a road race thrown in a few times in the summer. CR will be ~11.7:1, no nitrous or boost. I'm using a Compstar 4" stroke crank and 6.125" rods. I'll bolt-on my existing PRC LS6 heads. For pistons I'm leaning towards a 4032 flat-top forging like JE/SRP #279585. I would think reduced piston-to-wall clearance will keep the piston from rocking at the bottom of the stroke. I don't need a noisy oil burner. Let me know what you guys think of these pistons and / or anything else you recommend.