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#1
08-02-2025, 07:21 PM
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This letter was sent to NHRA by Chevrolet Motor Division informing them that 50 396-375 hp Nova's were built on April 23, 1968.
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#2
08-04-2025, 04:11 AM
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Another ad in color announcing the 427 Nova coming soon.
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#3
09-03-2025, 12:34 PM
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Way cool article! Thanks for posting.
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Dave Dykstra 1968 Camaro Palomino Ivory/Ivy Gold interior -Delivered to Courtesy Chevrolet, Los Angeles, CA 2013 Corvette Grand Sport 60th Anniversary Edition Arctic White/Diamond Blue interior -Delivered to Bill Jacobs Chevrolet, Joliet, IL NCRS#66003 Speed dictates the severity of consequence-Tres Martin Dykstra Motorsports
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copo-2 (09-03-2025) | ||
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#4
09-20-2025, 01:33 AM
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Daily transportation thru the week but drag raced most weekends.
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#5
09-20-2025, 01:34 AM
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Great pic!!!!!
__________________
Dave Dykstra 1968 Camaro Palomino Ivory/Ivy Gold interior -Delivered to Courtesy Chevrolet, Los Angeles, CA 2013 Corvette Grand Sport 60th Anniversary Edition Arctic White/Diamond Blue interior -Delivered to Bill Jacobs Chevrolet, Joliet, IL NCRS#66003 Speed dictates the severity of consequence-Tres Martin Dykstra Motorsports
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#6
09-29-2025, 10:33 PM
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In the first page of the article, (post #1) it mentions the Turbo-400 being redesigned for competition. This automatic transmission was developed for the 9738 Gibb COPO Novas to qualify them for NHRA SS competition. Since these cars were built and delivered the first 2 weeks of July 1968, the bulletin is dated July 12.
Since Dick Harrell used some of these Novas to modify, this document explains the modifications for initial 50 L-78’s that DH would latter upgrade including the 427. Also, the redesigned torque converter.
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#7
10-04-2025, 09:48 PM
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Pictured is the original redesigned Turbo automatic transmission developed for the Gibb Nova’s. DH got some of the cars for modifications of which the paperwork & transmission is applied. The special engine code for the original 396 factory engine is still in the document.
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#8
10-06-2025, 01:58 AM
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E3 Engine code for COPO Chevy II
I still remember Kim Howie telling me about the E3 engine code. He thought it was alpha numerical for Experimental 3 speed automatic transmission.
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copo-2 (10-06-2025) | ||
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#9
10-06-2025, 02:36 AM
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I would suspect that engine suffix “E3” would be related to Tonawanda installing a flexplate with 6 holes for that 6-lug converter hence, “Don’t forget the Extra 3 holes!”
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1962 Biscayne O-21669 MKIV/M-22 1962 Bel Air Sport Coupe 409/1,000
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#10
10-23-2025, 06:31 PM
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Quote:
The special engine code and transmission code have had numerous discussions ever since it was discovered the Gibb Novas were built and made possible by the COPO process? Not much to learn in Chevrolet manuals?
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