318 Bs, I thought were Magnum manifold bolt pattern, I thought the As were LA pattern. I could have that backwards? Over the years I've bought 2 sets of the ones with LA manifold bolt pattern, 1 set with Magnum bolt pattern. The heads will bolt onto ALL 318 blocks (except poly) LA and Magnum. the 1st set I bought bare worked out great (LA manifold pattern) the 2nd set, went on my son's 360 in a Ramcharger..... came fully dressed. jury out on that set, he did send them thru the machine shop after he wound up with an oil burner.... fresh complete rebuild at time heads were installed. machine shop did have to do some repairs on them I'm not sure what, or if that work had anything to do with the oil eating. the set I bought fully dressed for my Durango, were definitely pieces of ****. 6 miles on an original Magnum engine, used as a Magnum engine as stock would be in an 01 Durango, and an exhaust valve stuck, got hit by piston and bent. IM not happy.
