Quote:

This engine is to debut as early as next year in special SRT8's.

I don't know how extreme they are going with it, but any speculation on power assuming the 6.4L crank and Apache heads with a smaller bore?

6.4L = 4.09 Bore X 3.72 Stroke (392)

6.2L = 4.03 Bore X 3.72 Stroke (380)

The GM LSA (ZR1 engine) dimensions are 4.06 X 3.62 and makes 580HP @ 9psi boost. The 5.8L in the GT500 makes 662 @ 15psi



The LS9 ZR1(Corvette) engine is 638 HP. The LSA ZL1(Camaro)engine is 580. Another version of the LSA as installed in the Cadillac CTS/V is 556 HP. The upside of a boosted engine is the simplicity of adding power. A simple pulley gear swap can pick up another 75 HP easily. Of course this voids the warranty.