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09-28-2014, 11:23 PM | #1 |
GMCDAC
Join Date: Apr 2006
Location: Rapid City, SD
Posts: 837
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1970 Jimmy engine teardown
Hey Jimmy and Blazer folks, I don't get to post very often but I took the upper end apart on my Mom's Jimmy today. I've another project going that needs to be done with my '72 C2500 and thought about using the cam and lifters out of the '70 since I'm going to have new stuff in it. A couple of the lifters were just a little more worn for what I wanted. That is another story. The 350 from the Jimmy was running great when I pulled it, but it had the telltale signs of valve guide wear. Here are some pics of pulling the intake and heads if anyone is interested.
It is obvious that Mom had some service done to it at some time that required the intake to be pulled without my knowledge. I am hoping that someone here will know if the original head gaskets were steel shim type as that is what was on this engine. Far as I know they had never been off until today and she bought the truck in spring, 1971, and I got my first drivers license in it later that year. Thanks---DAC
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1970 GMC K5 Jimmy Custom 4X4 Mom's driver from 1971 to 2001!! Under rebuild! 1972 GMC C2500 Pickup owned since 1979 Needs a rest and refurbish! 1955 GMC 100 2nd design driven almost daily! Rest In Peace Mom. "Dolly" 7/15/23 - 5/18/09 GMC driver for 30 years! |
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