Reply to "Fuel type"

maraudermikeMember

quote:
Originally posted by George P:
A "stock" 1973/1974 351C will operate just fine on US/Canadian 87 octane unleaded fuel.

George,
Thank you. Perhaps related but I have been chasing a metal to metal squeak/chirp coming from the engine. I pinned it down to the #3 exhaust valve. Pulled the heads and discovered they have been changed to the D0AE closed chamber heads. I had been running on the assumption they were the original heads and running unleaded fuel without additive. Fortunately no major damage and the heads will be rebuilt. Not sure if not having the additive in the fuel would cause the squeak as some of my friends believe but I'll know the heads are in good shape.

6/15/161:06 AM

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