HomeAll RepliesRe: What horsepower is this motor Re: What horsepower is this motor Sponsored September 23, 2012 at 1:58 pm #40587 C6RAPTORParticipant I agree, MAYBE 400-450 is pushing it with the cam. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored