Carol,

As long as it is a '65 Block, you still have a 327.

By the way, those '56 Heads are special. They are actually 265, 4-Barrel "Power Pack" Heads which were also used on '56 Corvettes.

Some of those leaks could seal themselves in time.

Bill


'60-'72 Chev/GMC Fan
GMC 9500 Fan
Detroit Diesel Fan