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Engine choice, Pete? I'm stickin' with the LS7...
Built in these volumes (5000 or so), that's 5 TIMES the Z06. Contrary to other opinion, and even if "hand-built", unit co$t$ MUST be decreased...more blocks/heads/ti rods/cranks etc. And yes, there is some validation work to be done. But the vast majority of development has already been accrued, and can now be amortized over far more units, for whatever duration the LS7 remains (likely through balance of current-Gen Vette, approaching the next-Gen Camaro and therefore next-Gen engines). Compare the expendiency and costs to validating FOR PRODUCTION PURPOSES a "hot" LS3 (there IS a difference between Parts criteria and Production criteria, and the revised LS3 would have to be smog'd, which it currently isn't...LS7 is). Again, more torque (not inconsequential in a car of this size, regardless of its final Curb), more power more easily, more rev-able, and, at this unit size, not much (if any) more expensive at source.
If an LS7 CAN be made available, "within pricing/cost constraints", why wouldn't we want it?
BTW, Scoggin-Dickey sells a MAST-built LS3-based 427 with Eagle internals for $16,995. Makes 600hp. They ALSO sell a similarly-constructed and -pieced LS7-based 427 for the SAME PRICE. Power from the LS7 version? 650hp ...same price, same displacement, similar componenets! So which engine is the basis for greater potential?
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