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Click on image for the lowdown. 
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| | | Forums66 Topics128,197 Posts1,057,261 Members48,466 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | While the head is off I'd spin the pump with a drill motor and cut-off screwdriver, see if oil is getting through to the top of the block. If so take a look at the head gasket, is it the right one, does it have a hole in the right spot to allow oil into the top end? If all that checks out start looking for an obstruction in the head/rocker assembly. | | |
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