Can anyone tell me what the flywheel bolt pattern is on newer small block Chevy motors? I know it is a 3.00" bolt circle, but I need the actual degrees for the bolt locations and for the roll pin location. I know I could just measure off of a crank, but I was hoping to find the actual dimensions. Thanks for any help you can give.

 

I've done alot of tooling design for engines and I have yet to find anyone that can get You blueprint spec's for a Manufacturers engine parts. They guard those like the holy grail. The only way is to get a crank and do it Yourself.