i have a 502 that the customer says it is a reverse rotation. was wondering if all you have to do is change the cam and the starter also the distributor gear to turn it back to standard rotation. will be pulling off timing cover today to verify.

Don't forget to change rear crankshaft seal

also, some engines had the pistons reversed as well....

and the timing chain cover seal.
I wouldn't think the gear on the dist would have to be changed. In most RR motors the cam still spins the right way it's just the crank that spin "backward"
Also if the motor has been run you may have to have the crank resurfaced due to the scales on the metal would be going the wrong way.

Oil pump too? Had friend with the same problem in a Chris Craft Roamer and I think he had to change the oil pump.

ok i was just hoping to swap a few things and then ready to go so i mite as well rebuild this thing and i thought 502s never came reverse rotation and i believe its a gen5

Have you turned the starter over to verify its a reverse rotation????

oil pump should be the same

i have not im going to look at it today

You are correct, I spoke to soon