1) These engines are famous for the heads cracking between the valves.
So I'm told but in 25 years as a mopar dealer tech I have never seen a set. Don't be afraid to use the stock heads. I have three sets here that are perfect.
2) No provision for a mechanical fuel pump.
Correct unless you swap to a flat slider or use one or two of the odd roller cams with long snout or get the adapter from Hughes.
LA covers fit with no problem, I have them on mine or you can run the factory covers or MP ones.
Lots of intakes you can buy or redrill the heads or even buy enginequest magnum heads with LA intake pattern from Hughes.
Balance is different, have to use 5.9 magnum flexplate or get a flywheel balanced.
Front is the same, I have an early cover on mine.
