Well guys, the machine shop called me today with bad news. A while ago I had pulled the 336 V8 out of my '59 LWB to have it rebuilt... it ran, but leaked oil, had a burnt intake valve, and low compression. The machine shop has thus far cleaned and bored the block, as well as located all the parts for me to reassemble the engine...
The call came yesterday that BOTH of my heads were cracked, and not in good places as the cracks were on both heads into the
valve guides, so they can't even use the heads I've given them.
Now, the challenge comes of finding some good heads off of another GMC 336 (which I think will be like trying to find the holy grail) or to find out if anybody knows what the interchangeability is off of other Pontiac engines of the era.
The only thing I know is that engines such as the 350, 389 and 400 used a later style head and intake assembly, where the water jackets do not come out of the front of the heads.
Has anyone had any experience with this? Is it possible or am I dreamin'?
