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[C2] 1966 L72 Date Code Question on Starter.

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Old Oct 13, 2021 | 02:34 PM
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Default 1966 L72 Date Code Question on Starter.

I have a 1966 427-L72 Corvette. Block date is 03/18/66. All original.
All engine components are in that time frame except the Starter Motor.
The starter in the car now is an after market off the shelf one. It should be the factory stamped 1107365.

I want to pick up the correct dated starter (1107365) 427 hp to make things right.
My question is what date code/stamp range would be the right fit for the 03/18/66 engine stamp.

Should it weeks/days before the block date or stamped after the 03/18/66 block date.
I have time on my side so I can look for awhile and be real date code specific. I am in no hurry until the right one comes up.

The new starter will not be installed in the car but will be kept in case of future selling by my sons.
Do not care about the six month rule as I could car less about Judging and trailer queens.

I would like a correct Starter date range of what I should look for. Any and all info would be appreciated.

Thx

Bill

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Old Oct 13, 2021 | 02:35 PM
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A week or two before is typical. It’s a common Chevy starter.
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Old Oct 13, 2021 | 03:56 PM
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Thanks.
Nice to hear from someone who is not 100% **** on my questions.

I just ask for honest opinions.

Again, thanks for the reply.

Bill
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Old Oct 14, 2021 | 08:07 AM
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Even though there were thousands of these starters used for all BB Chevys, it may be difficult to find one within 2 weeks of your build as it was / is a normal replacement item. Also, the solenoid (#1114356) on the starter may be difficult to find although it is not dated.
What nosing did the starter have from the factory - aluminum or cast iron? And what clutch / flywheel set up - 10.4 in. on a 154 tooth flywheel or 11 in. on a 168 tooth flywheel? Was there a number on the nosing?
The recent shipping cost increases make these things even more expensive.
Just saying it may be a lot of money to just put on the shelf.
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Old Oct 14, 2021 | 08:28 AM
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Originally Posted by R66
…… what clutch / flywheel set up - 10.4 in. on a 154 tooth flywheel or 11 in. on a 168 tooth flywheel?…...
An L-72 427 has 11” /168 tooth

Last edited by 66427-450; Oct 14, 2021 at 08:28 AM.
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Old Oct 14, 2021 | 08:40 AM
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Yes, if the car is that correct should have an 11” clutch and larger flywheel. Needs to have a nosing for that.
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Old Oct 14, 2021 | 09:34 AM
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NCRS accepts up to six months before the vehicle build date. Also, since specific assemblies like starter motors and alternators were built in batches for future production, a low volume engine like L-72 would be expected to have a wider date range that a high volume engine like the 327/300.

A few days to a couple of weeks is a typical time from the engine assembly date to the vehicle assembly date depending on popularity, but engine components like carbs, starter motors, and alternators are usually older.

If you can find a correct L-72 starter motor with a date code of no more than a couple of MONTHS before the vehicle build date, no one will question it, and like I said earlier NCRS will accept up to six months earlier as "original".

Duke



Last edited by SWCDuke; Oct 14, 2021 at 09:35 AM.
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