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Mod | | | Forums66 Topics128,094 Posts1,056,060 Members48,433 | | 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!
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#60999 05/28/2006 6:01 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | I'm almost positive that engine should take r44(gasket-type) or an r44t(taper seat) in an AC plug. the xls means an extra long seat IIRC. maybe a piston has closed up the gap. I added HEI to a 64 230 & it idled smmother & gave excellent fuel mileage,,,brian | | |
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