02 Vette

[RCJ]

My brother is building an 02 ZO6 Vette for road racing.He wants to use the stock short block and heads and reprogam the factory computer if possible.He has a goal of 500hp.He has 1 3/4 LG headers and x-pipe.What do you gentlemen recomend for the rest of the motor? Is there any problem areas that need to be addressed.

[SLED28]

500 rwhp or 500 flywheel?

[eb02z06]

Those cars make around around 370 rwhp with a airbox and tune, around 380 with headers. A set of AFR's, A healthy cam, underdrive pulley, Fast 90/90 , EWP and you can get up to 480 rwhp.

[RCJ]

I looking at a Patroit cam with 232in. 230ex. dur. .580lift 110lc COMP 26915 springs(105 seat pressure) .Will the stock non adjustable vavle trian work?The head gasket is a 3.970 bore .050 thick mls can I get a .040 thick in the same bore?Can the head bolts be reused?I am going to have the stock heads ported.

[eb02z06]

I wouldn't waste a dime on having the stock heads ported, I would pass on that cam as well. A LG G5X3, with exhaust, underdrive consistentaly makes around 430 rwhp-if you want soemthing a tad smaller an off the shelf comp 228/230 works well too.

[SLED28]

I agree, at the minimum go Patriot CNC or just do yourself a favor and go with some small chamber AFR's... Also the 105 on the seat is not nearly enough for road race. Stock headbolts cannot be re-used, you'll want some ARP ones.

[RCJ]

I'm going with a comp xer281hr-12 and recommened springs and pushrods,gm racing lifters,.040 cometic gasket.The shop that sponsors me on my other racing does alot of porting (and agood job to) so I send them all the buisness I can.

[RCJ]

Just got a call from my brother. It made 443rwhp.He road races in a club and his arch rival has 410rwhp so he's real happy.