Thread: 1971 Trans Am
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  #28  
Old 04-04-2016, 01:22 PM
eaglesan13 eaglesan13 is offline
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Join Date: May 2002
Location: California
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The block in the car now is a 1970 455, casting #9789140, dated L189. It's a YH code. According to Pete McCarthy's book, it should have 4-bolt mains, but I have been told that is not always the case. I have not decided what to do about the block, whether to find a correct WC code or to go with an SR block. The car runs really well, so I am in no hurry. There was an NOS 1972 455HO block on racing junkie recently which would have been perfect for my car, but someone else grabbed it before I saw it.

Quote:
Originally Posted by starlightblack View Post
Sweet , sweet car. So what's in it now for an engine block, SR?