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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: Jul 2014 Posts: 892 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 892 | I just pushed "Buy" on E-buy for a 62 261. The photos check out with heavy truck features and the block casting number checks out and it has captan's bars. It's painted yellow. The head however shows a casting number of 848. I did not know that head was used on 261s. If it's the higher compression 235 head so much the better but if it's not a factory installation I'm tempted to pull the head and check for the extra cooling holes between the siamesed cylinders. If that was a factory installation I'll leave it alone at least for the 90-day warranty period.
Anybody know if the 848 head was factory installed on 261s?
1951 3800 1-ton"Earning its keep from the get-go"In the DITY Gallery1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971. | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | 848 heads came stock on Canadian 261’s
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Mar 2010 Posts: 1,660 Curmudgeon | | Curmudgeon Joined: Mar 2010 Posts: 1,660 | Block casting date is Feb. 02 1962. Cool!
The stock head was a 3836850 and more than likely it developed a crack.
Back in the day it was a lot cheaper to find a replacement from a junkyard rather than repair the original.
I think the consensus is that the extra cooling holes are only necessary when you want your truck to do heavy duty hauling.
The engine has the early version PCV system. I would ask for the original oil bath air cleaner since it is has the connection to the valve cover.
"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."
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