LS1 in an R51?
Posted: Thu Feb 20, 2014 6:59 am
by BO4THSS
Does anyone have any experience swapping a 5.7L in a R51? This may seem sacrilegious to some in this forum, but my other car is a 4th gen Camaro that I'm thinking about dropping a BBC into. Will the 5.7 fit in a 06 LE? Will the frame handle about 450hp? To keep the 4wd, was thinking of using a 4L60E out of a Silverado or equivalent. My LE is currently awaiting an all too well known trans replacement, which might help me warm the wife to the swap idea. And I figure daydreaming about a nasty sounding cam in my LE is healthier than plans for world domination... Any input or experience would be great!

Posted: Thu Feb 20, 2014 8:22 am
by skinny2
Well Nissan manages to cram a 5.6L in the '08+ models so depending on the overall size of the 5.7L it might fit. They made some front-end changes compared to your '06 model but I'm sure they're a little more picky about the fit than you would be.
I'd probably sell the small block and use the money to mod what you have. Stillen has a supercharger available that still keeps the PF very daily-driver friendly (i.e no pissed off wife) and pretty stout performance.
I think to do the full drivetrain change you're talking will require gutting most of the electronics and turning the PF into a go-cart.
Anything is possible with enough $$ though.