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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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| | | | Joined: Aug 2007 Posts: 67 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2007 Posts: 67 | Are you still having trouble getting oil to your rockers? One cause can be by not replacing the one head bolt with the oil passage built in. The factory bolt is drilled with a 1/8th hole which allows oil to rocker shaft. I beleive '55 to '62 235 heads had this bolt. It has to be located in that oil passage hole. Good luck, Greatdane interesting, none of my head bolts were drilled though, and the numbers on this block come back to a 56. i installed all the head bolts where they came out off. the oil does make it up, it just comes out around that little tube instead of into it. i'm looking into making a sleeve which might solve the problem. thanks for the tip though! | | | | | Joined: Sep 2007 Posts: 2,644 Shop Shark | | Shop Shark Joined: Sep 2007 Posts: 2,644 | I'm not sure what tube you're referring to but mine is pinched off: PICTURE Theories why differ greatly but I'm leaving it the way it is. | | | | | Joined: Aug 2007 Posts: 67 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2007 Posts: 67 | if you look at the video i made on youtube it will show the oil coming out around the tube instead of up it. and from your pic looks like someone cut the return portion of yours and pinched it. | | | | | Joined: Jun 2005 Posts: 2 New Guy | | New Guy Joined: Jun 2005 Posts: 2 | On my '58 235 head that special bolt is drilled from the bottom up about an inch and half and out the side just above the threads,which allows the oil from block to oil chamber in head and into short curved tube on the rockers. On my '54 235 head, it's design, doesn't need the special bolt. Again Good luck, Greatdane | | |
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