Holley 4800 series differences?. (1971)
Different part numbers and list numbers: 4800 for Z28 with automatic, 4801 for Lt-1, 4802 for LS6 with automatic, and 4803 for LS6 with 4-speed. Different numbers, yet every spec that I find from Holley is identical for all four carbs. Z28 has different secondary metering block, but all the others have the same primary and secondary metering blocks, and even have an identical later-year metering block change. Main body castings are identical. Bases are identical. Fast idle plastic cams are identical. List number is Holley number, 7-digit part number is GM number. So why different list numbers and part numbers, and are there, in fact, any differences in the carbs?
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Re: Holley 4800 series differences?. (1971)
What was the squirter size for the Automatic version?
Typically autos have about 2 sizes larger accelerator pump squirter size to overcome the torque converter loss/inertia... This is usually the only difference in the auto to manual carbs..James A Groome
1971 LT1 11130 - https://photos.app.goo.gl/zSoFz24JMPXw5Ffi9 - the black LT1
1971 LT1 21783 - 3 STAR Preservation.- https://photos.app.goo.gl/wMRDJgmyDyAwc9Nh8 - Brandshatch Green LT1
My first gen Camaro research http://www.camaros.org/forum/index.p...owposts;u=4337
Posts on Yenko boards... https://www.yenko.net/forum/search.php?searchid=826453
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