Stock heads, stock cam, stock intake, stock pullies, no bolt ons. The bottom end is where all the goodies lie....LS6 block which is a 382 stroker with forged crank and forged pistons at 9:1 compression. I just bought an intercooler and will install it soon. The stock STS turbo isn't enough to feed this engine at boost above 8 psi because it falls off a little in the upper rpms but don't get me wrong, this car rides out sickly.