[mrmustang]

On top of what Rick stated, before you buy pistons, be sure you already have the block in hand..........Having a really nice set of 5 over pistons will not work well if you have to go 10 over to clean up your cylinder walls. Same goes for a crank, rods, and just about anything else in the reciprocating assembly. heads are a matter of choice, but what ever you choose must be matched to the pistons for proper compression ratio..........Finally, let's not forget the hardened valve seats, port work to get original heads to breath (or even new heads right out of the box, which at times need a lot of work no matter what the literature states), or even match from one head to another..........


Bill S.