[arpad_m]

Originally Posted by dfxrte

there's a fair bit of differences between the two.

saying the ss 1le is the zl1 without an lt4 is a pretty insane claim tbh

Originally Posted by Vigilante375

Honestly it is a ZL1 without the supercharger and the badge.

The brakes, from what I've read, are slightly bigger on the ZL1. Unless GM changed that with this whole copper free BS.

The suspension is the same just tuned differently for the weight for the ZL1 and the SS1LE.

I think the eLSD on the SS1LE doesn't have the same calibrations that come standard on the ZL1 but you can pay a few hundred $$ to get it. Again, don't know if GM finally made it a standard feature for the SS1LE. I believe PTM is the same as well, just tuned for the lesser power for the SS1LE.

Body work? Can't remember if the body panels are the same as the ZL1 in order to fit the bigger tires.

Apart from the supercharger and the LT4 itself, there are many subtle differences such as a stronger driveshaft, better fuel system components, a tiny bit larger brakes or obviously several body and underbody panels (including wider front fenders, for example).

The question is how much these matter in the real world; they don't seem to be a big deal at ZL1 power levels but as power is increased, they will support more.