jdub

iTrader: (1)

Alright I found where the water was coming from. I took the intake and heads off and found that the block was cracked in a couple places towards the top of the cylinder. Sucks, but at least I found the problem. So this is my plan. Buy the GM 502 shortblock #12568782 and bolt my heads and fuel injection on. The cam in the new 502 is the zz502 cam. I'm assuming the cam is for a carb and I'm running fuel injection, so I will have to change cams? What cam do I get? From what I can figure the 502 GM shortblock with my heads and fuel injection from my 502 GM/Mercruiser should make a fine engine. Also I'm running Stainless Marine dry exhaust. What do you guys think?

jeffswav

There is a guy on here that runs a zz502 he could give you a good idea if that cam will work.
What heads do you have?

jdub

iTrader: (1)

Stock rec port heads.

walkintheplank

have you thought about tunning your fuel injection to the zz502 cam. im sure the carb cam is more aggressive than a FI. may result in a few more poneys.

jdub

iTrader: (1)

Thought about it, also thought about selling the EFI and going carb.