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Re: 1996 or 1997 gm 454 exh and cyl heads
Posted to Technical Discussion Forum on 5/27/2018

Thank you for that.

I have NEVER drilled out big block GM heads in all my years.

Second from the back is the first one that pouring out coolant.

I have got 6 more to go on Sunday.

Mom and Dad, 3 fantastic kids, 5,7 and 9. I hope to get a pic with them. ... Login to read more.