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| | | Forums66 Topics128,056 Posts1,055,800 Members48,426 | | 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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| | | | Joined: Mar 2008 Posts: 1,775 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 1,775 | Here's some good info. http://www.canadianmilitarypattern.com/1960%20235-261%20Engine%20Manual.htmMy initial thought is that your machine shop installed the drilled head bolt in the wrong spot. Secondly, Your 1/4 oil line is taking away too much of the oil pressure needed for the cam/lifters. They used an orifice to restrict the oil to the valve train. | | |
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