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Old 03-14-2006, 02:30 AM
1970RSZ28 1970RSZ28 is offline
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Default 1970 Z28 Flywheel Part Number

Can anyone tell me the correct part number for the flywheel on a 1970 Z28 LT1 motor? Thanks in advance!
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Old 03-14-2006, 02:36 AM
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Mr70 Mr70 is offline
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Default Re: 1970 Z28 Flywheel Part Number

Part #3868802 (1st design) or #3937736 (2nd design).
I've only seen the 2nd design used on the late produced Z/28,but that's just me.
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Old 03-14-2006, 02:39 AM
1970RSZ28 1970RSZ28 is offline
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Default Re: 1970 Z28 Flywheel Part Number

mr70, May I ask where you referenced this number?
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Old 03-14-2006, 02:54 AM
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Default Re: 1970 Z28 Flywheel Part Number

From a manual called Advanced Service Information.
A yearly compilation of Engineering Service letters,TSB's,Tech. Bulletins,Service News & Assembly manual part numbers & revisions.This comes from the 1970 version.
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Old 03-14-2006, 04:33 AM
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Default Re: 1970 Z28 Flywheel Part Number

Will the part number differ from the casting number on the flywheel??
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Old 03-14-2006, 06:14 AM
Jacsey 70Z Jacsey 70Z is offline
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Default Re: 1970 Z28 Flywheel Part Number

My flywheel shows 3978458 N Date B 24 0 never been off the car took the front cover off and and there it was. Not sure what the "N" means (maybe night shift), the car is a 04B Norwood car.
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Old 03-14-2006, 07:39 AM
1970RSZ28 1970RSZ28 is offline
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Default Re: 1970 Z28 Flywheel Part Number

My flywheel shows 3789783. I cant say that it is original to the car. Car was built in L.A.
mr70, Can you find these numbers in any of your publications.
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