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| | | Forums66 Topics128,021 Posts1,055,348 Members48,420 | | 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!
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#64441 08/17/2006 1:36 AM | Joined: Jan 2004 Posts: 210 Member | | Member Joined: Jan 2004 Posts: 210 | Posted here one other time about the Zenith carb on my 52 GMC and someone said why don't I just get a new one. I want to but can't seem to find a supplier with one. I even emailed Zenith and they gave me a couple of replacement carb numbers. I'm not too much into having to have the original one but would like a NEW carb that will fit and work well in my truck. Any suggestions? Thanks Jim | | |
#64442 08/17/2006 2:09 AM | Joined: Dec 2004 Posts: 1,897 Shop Shark | | Shop Shark Joined: Dec 2004 Posts: 1,897 | carter, rochester, holley... The ones they use for the chebbys should work on your jimmy. You could probably get some type of adapter to run a 2bbl on the stock manifold. Do you have a 228, 248, 270 or 302.
I ran a 4bbl holley 390 on my 270 , new intake of course. It was a pretty staight forward swap. It gave me much better throttle responce. I didn't benefit from increased economy... foot got much heavier! Everything else was stock, and the engine had 250,000 miles when I installed it. It made it to 272,000 before I pulled it to overhaul. It still fired right up, but My rear main seal was gone and I was losing heaps of oil. I started feeling bad for the fish! | | |
#64443 08/17/2006 6:07 AM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Seems like someone posted a source for the new replacements from Zenith on the OldGMC site awhile back. Might try a search there. | | |
#64444 08/17/2006 3:12 PM | Joined: Mar 2005 Posts: 25 Member | | Member Joined: Mar 2005 Posts: 25 | 46 Burb I have a NOS Zenith carb to fit GMC, need to know the distance between the mounting studs on the intake, mine are 2 3/4", also what size motor do you have. 1-918-542-3871 or E-mail [email protected] | | |
#64445 08/17/2006 6:31 PM | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | To determine WHICH carburetor was used on which G.M.C. engine, try here: http://www.thecarburetorshop.com/TRGMC.htm Jon. Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
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