Need GM part number

427TJ · #1 08-25-2004, 10:10 PM

My buddy is restoring his '66 L72 Corvette and wants to know what the part number is for the flywheel and whether it's 10.5 or 11 inch.

Thanks in advance!

Verne_Frantz · #2 08-25-2004, 10:46 PM

TJ,
Try posting your question over here:

http://www.ncrs.org/forum/tech.cgi

You'll get an answer in seconds!

Verne.

396L35 · #3 08-26-2004, 01:47 AM

[ QUOTE ]
My buddy is restoring his '66 L72 Corvette and wants to know what the part number is for the flywheel and whether it's 10.5 or 11 inch.

Thanks in advance!

[/ QUOTE ] Its a 10.5 inch but I dont know the GM number. Mark

nova7579 · #4 08-27-2004, 03:06 AM

My book shows part #3988759 fits 66 thru 69 427 with manual transmission. It does not say what size it is.
Brian

427TJ · #5 08-27-2004, 03:18 AM

Thanks guys. I'll send the info on to my buddy, as well as the NCRS site info.

396L35 · #6 08-27-2004, 03:30 AM

Thats what we are here for Bill.... Mark

**mssl72** · #7 08-27-2004, 11:37 AM

I don't want to ad any confusion, just another possibility. My early GM parts book dated May 1, 1966 shows #3889694 for "PASS., CORVETTE (396, 427) (EXC. A.T.) solid type". My other GM parts book dated June 1978 shows "66-69 All (427) (exc. A.T.) #3998281". Maybe NCRS has one of those on the list. I noticed that flywheels are evil. GM parts group .666!

427TJ · #8 08-30-2004, 07:52 PM

Thanks Mark, I just passed on your data to my buddy.

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