Nevermind I did some more scraping and what I thought was "DOUE" is really "D3UE". So this means that I have a 1970 cylinder head and a 1973 Cylinder head. I'm assuming that because of emissions requirements that the 1973 head has a bigger combustion chamber. The valves are the same size in both heads. Will the 1973 head still work with the 1979 (and performe well)? I don't think it will, but I thought I would ask anyway.
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1987 Buick T-type
1998 HD Electra Elide
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