What's The Difference Between My Early 351 W Heads?

RacerJames

Active Member
Mar 21, 2014
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Kingman AZ
I have 2 351W heads. 1 D0OE and 1 C9AE. It's my understanding that they have the same valves, combustion chambers and ports, pressed in positive stop rocker studs, and all the bolt locations match. so, can y'all please explain the differences between these two castings?
 
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Robert Campbell

Active User
Aug 28, 2016
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66
I have 2 351W heads. 1 D0OE and 1 C9AE. It's my understanding that they have the same valves, combustion chambers and ports, pressed in positive stop rocker studs, and all the bolt locations match. so, can y'all please explain the differences between these two castings?

In my experience they should be identical. One casted in 1969 and the other in 1970.

Rob