Reply to "I'm on a learning curve, need a few answers."

rockyMember

I think it's more likely that someone swapped in early heads, and had the pedestals machined down for adjustable rockers.

From one of George's posts.

quote:
351C Cylinder Head Casting Numbers
for cylinder heads manufactured in the US

1970 351C 2V (H code): D0AE (small ports, small valves, open combustion chambers, 76 cc)

1971 - 1974 351C 2V (H code): D1AE (small ports, small valves, open combustion chambers, 78.4 cc)

1970 351C 4V (M code): D0AE (large ports, large valves, closed combustion chambers, 62.8cc)

1971 351C 4V (M code): D1AE (large ports, large valves, closed combustion chambers, 66.1cc)

That's pretty easy to do. I am pretty sure the DOAE heads are early.

3/6/1710:20 PM

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