Best wishes with the electrical issue.

Awesome combo

 

A 1 volt drop will not be enough to hurt anything, you either have a bad engine ground or something is keeping the engine from turning over..... re-check your main grounds and try turning the engine over by hand..

 

awesome setup bro, cant wait to start my ls1/t56 swap! good luck with the starting problem 89ls1foxer really knows his stuff his advice should be pretty helpful

 

Could it be too much compression with my cam?? it's at like 11 3/4:1 compression cam is comp 224/230 with comp 918 springs

 

Engine turns over fine by hand, rechecked all grounds to engine... Could it be my truck flywheel I reused, is there a difference between truck and ls1 flywheels?

 

YES! The truck flywheel is designed for a NV3500 trans and clutch assy, you need a LS1 f-body style clutch and flywheel....

 

Figured it out lastnight, pulled tranny so I could see Wat the starter was doing.. For one the truck flywheel has a deeper bowl to it( about 1/4") deeper.. So my starter couldn't reach the flywheel teeth, I swapped out flywheel lastnight with Ls1 lightweight aluminum one, but it still isn't lining up all the way, it's about 1/8" off so I'm Gona try an shim the starter this weekend

 

Is that the forward shift conversion?

 

Yes, made by Keisler

 

Here is what my truck was doing when i try to start it



and here is the difference between flywheels