Thread: Motor swap - Options

Originally Posted by minichopper6hp

Well ill be the first to say that the ls4 has no aftermarket and you would be better going the l32 route. The pcms are the same the programming is different for boost obviously. Should be a straightforward swap for you if you have all that experience.

Well, He's not like me and always tinkering, so the aftermarket (or lack thereof) for the LS4 is of little or no importance in this case. If it was for MY car, then the aftermarket availability would be more important, although, no offense, but as nice as the GP's are, I'd never own a FWD car. RWD or AWD/4WD is my preference. If swaping in the LS4 isn't significanly tougher than the L32, he may rather go with the LS4 swap for the ~100HP increase instead of ~60 with the L32.

Interestingly, it looks like the LS4 uses (almost) the same 3.29:1 4T65E-HD transmission as the Supercharged 3800 Series III... Hmmm....