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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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#83506 09/28/2007 7:19 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | The passages of the 850 261 head are exactly the same as the 848 head of the 235. The 261 uses stellite exhaust valves but I don't remember if there is a size difference. The rocker arms are not the same.
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