What exactly is the difference between the LS1 and LS6????

 

intake and exhaust ports on heads, intake mainifold, cam, and on older ls1s, the ls6 block has slight differences to improve air circulation in the crankcase. A lot of newer ls1 cars have this block.

 

The LS6 heads also have a better configured combustion chamber. If you look at a pic of the two you can see the minor differences.

Main differences in the two though are the cams, the intake manifolds. The 2001+ LS1 motors had LS6 intakes though... Like already said they have differences in the blocks too to help w/ crankcase circulation...

 

So if they are the same size couldn't you fit an LS6 into an F-body if you can fit an LS1?

 

Exactly!! Same motor except for the internals, programming, & intake manifold, just like how everyone said above

 

GMMG actually did just that. Put LS6 motors in F-bodies... They called it the ZL1 Camaro... They also put C5R 427s in and labeled them Berger SSs and such...

 

I thought it was the other way around, with the 427s in the ZL1s, and hopped up 375HP ls1s in the SS (that's what it was in 2000, a hopped up ls1)

 

I was slightly wrong in my last post. There are 3 phases of ZL1 GMMG car. Phase 1 and Phase 2 are LS6 motors, and the Phase 3 ZL1 had a C5R 427.

Of the 69 ZL1s released I believe that 34 are 427 cars.