I have a 73 350 block, the casing numbers have so much flash, the number is unreadable. The numbers I can see are T1, CCNV2 on bellhousing area, TO226CKJ, and 13R457673 on the front passenger pad. The heads are 3973487, which come up as 71-72 LT-1 1.94-1.50 heads. Any ideas?

sorry, wrong area. re-posted in tag team. Admindudes - can ya'll kill this?