Program Main Cap question.

Quite frankly unless your caps are missing I wouldn't bother. Personally I've yet to see a SB Mopar main cap fail. Use a set of ARP studs, have the mains line honed, and detail the caps. What I mean by detail is grinding down all the rough edges and corners. Use a sanding roll on a die grinder. Eliminating the stress risers on the caps will do alot for strength. If you just gotta have Pro Grams don't use the 4 bolt caps. Not enough meat in the block where the additional bolts go. Every time I hear about a block failure it had 4 bolts caps installed on it.