5.3 SSR Engine Installed with 4L60E

[FirstGen]

Originally Posted by grendel

They all use the same head, I am told, but I have not validated that yet.

Heads are all the same design. Totally different CR's and bench flow rates. We put 5.3 heads on 5.7s all the time. Comes out to 10.9 CR which is a nice bump from stock 10.2. The LS6 heads flow the best out of the box and have lighter exhaust valves (sodium filled). While the 6.0 heads are a close second and are ideal for FI motors and are a reasonably priced head compared to the LS6 heads...