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Mod | | | Forums66 Topics128,103 Posts1,056,188 Members48,436 | | Most Online14,466
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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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2011 Posts: 1,456 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,456 | Other GM engines that use positive rotators on the exhaust valves use a slightly shorter valve spring on the exhaust- - - - -about 1/8", IIRC, to compensate for the thickness of the rotator. Don't some of the 261's have a similar arrangement?
Jerry I think all 261 used exhaust valve rotators, I have a 261 stashed that has them, as does the '59 261 in my 60 C10, 848 head.
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
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