I just purchased a 1966 Skylark and the person that I got it from knew nothing about the engine. He said that he had a friend that was working on it (not in a good way) and when I got it she was not running. The past owner has had it for about 20 years and he was working on the body (removing paint). According to him it is a '71 455. I am not too sure. If anyone can enlighten me on determining what engine I have that would be very helpfull.
Where is the block casting number?
I have pulled a few numbers off of the heads and intake.
Pass Head MP1241860
Driver Head MP1241860
It has an HEI distributer and a 4bbl carb.
It's definitely a BBB of 400/430/455 CID. Look on this site for castings numbers & for ID.
Classic and Muscle Automotive
12 Cook St.
Norwalk, CT 06853-1601
Day Phone 203-324-6045 ET
NailHead Mini-Starters '53-'66
Adjustable Roller Tip Rocker Arms - All NailHeads
Custom forged pistons
Front & rear neoprene seals
Many other "Nail" parts
"If I can't get it, you don't need it!"