How can you tell the difference from an A code motor and a C code motor once it is separated from the car?
66 A code vs C Code
Apr 29, 2004
3 Replies
The "A" is a 4bbl, the "C" is a 2bbl.
John Del Wolcott, CT
"I'm just trying to get into heaven, I'm not running for Jesus!" Homer Simpson
(remove S for email reply)
C is 2 bbl, A is 4.
A code had higher compression, the pistons were flat tops.
C code had dished top pistons.
As others said, there is a manifold and carb diff too.
It really makes no difference at this point. The engine should be rebuilt and you control what compression, pistons, cam etc that you use.
Erich
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