Autopsy complete. Results

Yep! Crane sells a kit that contains the screw in studs (moper uses 5/16" threads in the head verse GM's 3/8") and guide plates for the conversion, $89 at Jegs. Then use 1.6 ratio sb chevy rockers.

I plan to do this next winter. I will get the kit from Jegs and go shopping for used rockers at the Thompson Speedway fall racers swap meet.