Should I run a C4 or a C5Z06 'vette in Stock?

[james schaechter]

Originally Posted by BlueOval Ralph

Be careful on Z06 as it has 4 things that in production that are listed as no nos even though it has been in guide for at least 2 year! *** rods and intake valves, CNC ported heads, and dry sump! The wizards at NHRA did not even know about the CNC heads till about a year ago!

I didn't think that was the earlier version, but I am not a Vette expert at all.

I would hope that the CNC heads bring the NHRA factor down like it did for the4.6 Fords! Knock about 50 hp off! LOL.