Need help identifing a flywheel pulled from my 63. Looking at the date code I don't think it's correct. Part(casting?) number 3791021 cast date L127. I'm not concerned too much about originality more concerned if this flywheel has or will cause any problems.I understand that 63's have a lot of "one year only" parts. There is a badly stripped hole for the pressure plate and if it can not be fixed I need to replace it anyway. Any sources for a replacement? Ideas to fix hole- a previous repair was attempted and left the hole slightly oval a simple helicoil will NOT work, fix was to use a bolt and nut (not my doing!). Don't want to r&r transmission 2 or 3 times. Thanks for any help
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I Would NOT Take A Chance
with the flywheel you describe when a new Hayes high performance wheel can be had so cheaply. ($190.00) Go for the steel wheel 168 tooth. Jegs p/n 490-10-130. 1-800-345-4545.
Used flywheels can be found at swap meets BUT after you resurface them you've still got around $100 to $150 invested!
Dale. -
P.S.
I balanced (my machinist did) a new Hays flywheel last week. Out of the box it was balanced to within 1 gram! That's QUALITY. He got it to within 1/2 gram!
When you resurface a flywheel the balance sometimes gets screwed up!
Dale.Comment
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Re: Flywheel ID / Questions
According to my July 1968 parts book, this flywheel was listed for 63-8 small block Corvettes and passenger cars. Whoever replaced it used the right piece.Comment
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Re: Flywheel ID / Questions
Gary------
I'm going to differ with Dale; I would NOT recommend going with a 168 tooth flywheel. If you were to do so, you would also have to change your bellhousing and starter motor. A 153 tooth Hays steel wheel would be an option, though.
A correct flywheel for your car is still available from GM under GM #366860. This piece GM lists for $252.00, but you can purchase one for a lot less through a competitive GM dealer. This part may even carry the correct, original casting number (which the one you have is). This may be important when having your car scrutinized by a "judge" with x-ray vision. In any case, using this piece guarantees you of having correct configuration for FUNCTIONAL purposes and no SURPRISES.
You could also use flywheel GM #14085720 which is a 15 pound nodular iron flywheel. This piece GM lists for $199.91, but can also be purchased for a lot less. I believe that this piece will work perfectly in your application, but I'm not 100% certain.
Considering the previous Heli-Coil attempt, the only way that your existing flywheel could be salvaged would be to install oversize pressure plate-to-flywheel bolts. I DO NOT recommend such a fix; among other possible problems, the complete assembly would need to be balanced.In Appreciation of John HinckleyComment
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Re: Flywheel ID / Questions
WOW! I thought the 1963 bellhousing/clutch/starter was a direct carry over from 1962! Glad to learn something!
I GOTTA stop addressing mid-year questions!
Dale.Comment
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