Normal LS3 heads work on an LS2. Why did you mention them in your list? Also did I miss the pricing on these?
Thanks zbrown for the answer...less valve shrouding is the benefit with our heads on a 4" bore motor as compared to the standard Ls3 head. Our intake valve is less shrouded due to its size when compared to the large 2.165" intake valve of the standard Ls3 head.
Here is some pricing info:
Stage 1 (As Cast): $1,299 per pair (Ferrea valves included)
Stage 2 (CNC): $1,899 per pair (Ferrea valves included)
-Valve springs are optional and are $200 for dual springs with steel retainers or $300 if you want titanium retainers.