Correct Heads
I have a set of heads with casting number 3904391 and dated H16 on one and K216 on the other. The car is a 1966 427 with the engine being replaced in the early 70's. The block casting number is 3999289 dated K1473 which I assume was a 1973 block. From my restoration book the heads are for a 1967 427 but the date stamp identifies the heads as being built in 1966. Could these be the correct heads from the factory . When the engine was replaced by the previous owner I'm not sure if it was a short or long block replacement.
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Re: Correct Heads
Walter,
The last '66 would have been produced in late July 1966. The 391 heads are for a '67. The H16 code would be July 1, 1966. The K216 code would indicate November 21, 1966. I'm not familiar with the block number, but if the K is a month code that probably indicates November as well. Is that a L-36 or L-72 car?
Joe -
Re: Correct Heads
Walter,
Joe is absolutely correct, but luckily for you the 391 heads are quite rare and valuable, so you may even come out ahead if you swap them out with the correct casting.
JoelComment
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Re: Correct Heads
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