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

[Rick Leininger Jr.]

Originally Posted by BlueOval Ralph

It sure was ALL Z06 have had same engine internals since day one, know that for a fact. Only Change was early had cast pistons later have forged.

The C5 Z06 does not have Ti rods, Ti intake valves, , CNC heads, or dry sump. The C5 Z06 has powdered metal rods, hollow stem steel valves, as cast unported heads, and internal pump wet sump.