" From: Mark Price <mail@xxxxxxxxxxxx> " " [] " You probably want to match the head to the engine. Didn't 64-66 232 use " a closed chamber head? you'd end up with pretty high compression if you " put that head on a shortblock with pistons designed for open chamber " wouldn't you?? iirc '64-7, 56cc chambers vs 66cc '68-'76 and 74cc '77-'80 at least. " ---------- Original Message ---------------------------------- " From: farna@xxxxxxx " " >[] " >The head off your 66 " >will physically bolt onto a 1974 and later six, but you would have to " >install an external oil line to feed the shaft rocker head as the block " >for the later engines don't have the internal oil line drilled. It " >would be much easier to buy a junkyard 258 bridged rocker head. You CAN " >use a bridged rocker head on the older engines, just use the correct " >length hollow pushrods. and lifters. early ones didn't have the dribble hole for pushrod oiling. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought