LQ4 stroked to 402 with Molnar crank and rods. SRP 10.7 pistons, new LS3 Heads, Brian Tooley rockers, Texas Speed stage 1 cam kit 225/236 duration 629/615 lift. Stock LS3 injectors and intake. Tuned by Steve's Automotive in Lebanon TN. Texas Speed said it should have 560-565 horsepower. Made 315...