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Old 02-19-2009, 02:33 PM
SteveH SteveH is offline
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Join Date: Aug 2006
Location: Colo Springs
Posts: 1,831
Default 2F head differences - casting numbers

2F engine head question:

2F engine heads dated 7501-7602 have a casting number of 61030
2F engine heads dated 7608-8007 have a casting number of 61031

Does anyone know offhand what the real differences are in these heads, since there isn't an obvious physical difference? Are they interchangable (favorably or otherwise) on a '77 block?


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