Originally posted by fastball
The LS1 and the six speed are from the Z06. The reason the GTO has 350 hp and the Z06 has 405 is different exhaust, computer program, and intake manifold. Other than that, it's the same drivetrain.
No.
The Z06 has a completely different motor--the LS6. It has different heads, higher CR, different cam, etc.
The base Corvette motor is the LS1 and it has, surprise surprise, 350 hp.