Already done. Waiting on NHRA reply.

ZL-1 parts would cross over to all BBC parts except cating numbers, etc. Just as you can use a BBC cast crank and rods from a low HP version on a 427-425 for a reduction in weight, then you should be able to run a ZL-1 specific bolt on a 396-325. Good call. So Ford racers, what head bolts were on the 427 SOHC engines? Been awhile since I had a HEMI apart but I think it had studs also.