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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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3 members (JW51, 3800GUY, 1 invisible),
565
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Global Mod,
Mod | | | Forums66 Topics126,778 Posts1,039,288 Members48,100 | | Most Online2,175
Jul 21st, 2025 | | | | Joined: Oct 2013 Posts: 331 Shop Shark | | Shop Shark Joined: Oct 2013 Posts: 331 | I recently acquired a '58 261 that I removed from a '58 C60 Viking. The engine was original to the truck and it has a factory PCV system on it. On the passenger's side of the block where the draft tube normally is, there is a stand pipe with no draft tube on it that has a npt fitting in it with 90 screwed into it and then a metal PCV valve screwed into that. From there it's hard-piped across the valve cover to a fitting on the intake below the carburetor. I have no doubts that its a factory setup, I've just never seen anything like it before on any engine this old. Is this a rare piece or was it common on 261's of this vintage?
1950 4100 - unrestored and driven weekly for almost no reason at all.
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | you'll find the setup in the shop manual, it was an accessory for all the I6 engines
Bill
| | | | | Joined: Jan 2016 Posts: 631 'Bolter | | 'Bolter Joined: Jan 2016 Posts: 631 | Yup .......even back in 58' they realized sucking the condensation and combustion byproducts out of the crank case had real merit and huge benefits. | | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 | Yup ....... even back in '48 (for one model GM truck - model 3742). | | | | | Joined: Nov 2011 Posts: 1,608 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 1,608 | Even the WW2 Chevy 235 in late 1942 used a PCV system. | | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 | I think 1948 was the first year as standard equipment on a Chevrolet truck?
In 1952 it became an option for some other Chevrolet truck engines. | | | | | Joined: Aug 2000 Posts: 248 'Bolter | | 'Bolter Joined: Aug 2000 Posts: 248 | Also fitted on WW2 Canadian trucks for the 216.......
Merry Xmas everyone.
Bob C.
CMP Heaven
The Hammond Barn
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