Need Help Identifying a Head Casting

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Nov 9, 2004 | 02:07 PM

2000Hoo

Thread Starter

Intermediate

Joined: Mar 2004

Posts: 28

Likes: 2

From: Columbus OH

Need Help Identifying a Head Casting

Alright, I need the help of some of the experts on this forum. I've got a #3731539 cylinder head dated H-16-7. It has an "x58" cast on the side of the head as well. Now, according to what I've been able to find, the #539 casting was only used during the 1957 model year. This being an August casting, I'm assuming it is for the 1958 model year. Also, the only castings I've seen with the "X58" on them were the #770 heads. Can anyone shed some light on this for me & tell me what I've got?

Nov 9, 2004 | 11:14 PM

magicv8

Le Mans Master

Joined: Nov 2000

Posts: 7,246

Likes: 21

From: Going too fast over the hill. Iowa

3731639 is listed as a 57 only FI head. My guess is that you have an over the counter part - made after the production run - before the molds were retired.

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