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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
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| | | | Joined: May 2005 Posts: 235 Shop Shark | | Shop Shark Joined: May 2005 Posts: 235 | An update:
I tore off the intake/exhaust manifold and found that a mudwasp had made a nest in the central intake port!
Off comes the head.... and I discovered that the Intake valves on the #1 and#6 cylinder have made contact with the pistons. Not fractured piston contact, though there is a slight indent. Weird that these two would have the only marks.
Took off the pan and dropped all the pistons out +.40. Wow these are sort of stone age tech.
The crank journals have some marks that I can feel. guess the motor is getting a complete going through after all.
I saw a tip on making the 261 a full pressure oiler... now I can't find it! Does anyone make aluminum gears for these now?
Jeremy | | |
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