My name is Sam and this is my first post here. Nice to see a site like this with all the resources and knowledge. I am a motorcycle mechanic by trade but I am just learning about my Chevy. It is a 2wd 1970 3/4 ton with less than 150,000 miles on it. It has a 411 diff and a 3 spd auto in it. I'd like to find out a little more about the engine. It is the original LS9.
It now has E ignition, Edelbrock intake and 600cfm, with a mild comp cam and freshly ground crank (4 bolt) and first OS pistons. The heads are reconditioned but stock. It pulls hard but what kinda power does this thing really make?