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Engine for our 1969 GMC
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11-16-2017, 06:18 PM
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Warrens69GMC
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Join Date: Jan 2003
Location: Safford,AZ
Posts: 3,613
Re: Engine for our 1969 GMC
no 4 bolt main 307. AFAIK the 4 bolt main is 350 up in a gen 1 engine SBC
Warrens69GMC
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