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Old 08-30-2021, 01:43 AM
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Default Earliest LS6/M22 production date?

I just recently bought a 70 LS6 4 speed car with a 12-11 (12B) build date. Does anyone know if any other LS6 4 speed cars were built earlier? Vin is 1401xx. Thanks Steve 👍🏻
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70 Cortez Silver LS6 4.10 Automatic
70 Classic White LS6 3.31 4 speed
70 Astro Blue ElCamino (clone) LS5 5 speed
70 Concours Wagon Fuel injected ‘70 LS6/700R4
70 Cranberry Red LS6 4.10 4 speed
70 Cranberry Red LS6 4.10 4 speed survivor
70 classic white Malibu convertible

Last edited by TopRat; 12-01-2021 at 07:38 PM.
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Old 08-30-2021, 02:05 AM
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Here is the build sheet
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70 Cortez Silver LS6 4.10 Automatic
70 Classic White LS6 3.31 4 speed
70 Astro Blue ElCamino (clone) LS5 5 speed
70 Concours Wagon Fuel injected ‘70 LS6/700R4
70 Cranberry Red LS6 4.10 4 speed
70 Cranberry Red LS6 4.10 4 speed survivor
70 classic white Malibu convertible
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Old 08-30-2021, 03:17 AM
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Nice little collection of 70 chevelles you got there... including 4 killer LS6's.
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Old 08-30-2021, 03:31 AM
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There's an Autumn Gold Turbo 400 equipped car built November 25th also at Leeds, and a 12B Dec. 9th built Turbo 400 car from Baltimore, but I'm not aware of any 4-speeds that are before your build date.

I had a Black 12C LS-6 Convertible M-22 built in Van Nuys that was purported to be the first convertible LS-6 built. Have been out of Chevelles for a while, so not sure if anything earlier surfaced.

Last edited by COPO; 08-30-2021 at 04:04 AM.
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Old 08-30-2021, 03:53 AM
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Another early built Leeds LS6 shipped to Canada.....
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Old 08-30-2021, 06:01 AM
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The build sheet pic is showing the
standard ss power bulge hood and
open element air cleaner. sounds like a
great car. Congratulations on your latest addition.
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Old 08-30-2021, 09:33 AM
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How do you tell if it had open element or the long dual snorkle air cleaner?
Was that an early thing?
Beem's old 4300 mile LS6 - 04C Arlington - had the dual snorkle.
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#21783 71 Corvette LT1 45k miles Orig paint - Brandshatch Green - National Top Flight - last known 71 LT1 built.
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& a Chevelle or two...
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Old 08-30-2021, 10:31 AM
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Quote:
Originally Posted by firstgenaddict View Post
How do you tell if it had open element or the long dual snorkle air cleaner?
Was that an early thing?
Beem's old 4300 mile LS6 - 04C Arlington - had the dual snorkle.
SS in box 55 of the build sheet designates the open element air cleaner. The dual snorkel equipped cars would have CO in box 55 of the build sheet. I believe the switchover was sometime in January 1970.
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Old 08-30-2021, 01:02 PM
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Quote:
Originally Posted by GotGrunt View Post
SS in box 55 of the build sheet designates the open element air cleaner. The dual snorkel equipped cars would have CO in box 55 of the build sheet. I believe the switchover was sometime in January 1970.

yes, box 55 showing SS. For reference our 02D Leeds plant ls6
also has SS in box 55 and the standard hood also.
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Old 08-30-2021, 10:59 PM
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I thought Greg Carlsons green car was the first?? Does anyone know the latest production cars from each plant, i know Dales Place has final vin by month but it doesnt specify what week productiom ended by plant for each.
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