291 heads production question - The Supercar Registry

12-09-2008, 12:12 AM

JHS

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Location: Rome, Georgia

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291 heads production question

I have a set of 291 heads, cast date E070 (the last "0" is quetionable but pretty sure that's it), correct single "hump" casting symbol, HI-PERF casting but there is no "T" for Tonowanda anywhere to be found. There is a "GM1" casting but no T after it. There is also what appears to be "CDF" casting code. Are these service replacement heads? Where would they have been cast?

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