This is a question on the same block from 2005--but I don't see an answer.

79shortbed454
Club Hot Rod Member

Join Date: May 2005
Location: robstown, tx
Hot Rod Year, Make, Engine: 1979, chevrolet, silverado
Posts: 22

454 identification
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ive got a 454 and i am trying to find out evreything i can aboit it. my casting number is 861959 can anyone help. it also has a p next to the numbers. and on the other side it has gm11