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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: Jan 2002 Posts: 36 Member | | Member Joined: Jan 2002 Posts: 36 | I believe in the archives somewhere this question was asked before and the 261 block has a couple of (steam holes?) that the 235 doesn't have and you can drill those extra couple of holes by using the 261 head gasket as a template to drill the holes in the head. Try the search at top of page. Hope this helps. | | |
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