Thread: identifying block year
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Old 09-29-2010, 11:43 PM   #17
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,254
Re: identifying block year
The last year for the 2 piece rear main seal in a production engine was 1985. I don't know if the Goodwrench engines kept the 2 piece longer or not.....it's possible.

Quote:
Originally Posted by blackdawg View Post
so that makes it a 1976-to 1988 block 4 bolt main 2 piece rear seal.
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