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Need help figuring out a clutch to fit my '72...shop can't figure it out!!

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Old 04-25-2015, 10:00 AM
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Paintedred72
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Default Need help figuring out a clutch to fit my '72...shop can't figure it out!!

Hi, not a transmission guy....

The motor is a newer crate motor 350. The flywheel is p/n 14088647N. Muncie M20.

Flywheel discussed below--

https://www.corvetteforum.com/forums...llhousing.html

They've tried an 11 & 10.4...say they don't work?..

Can someone provide some insight and possibly a link for some options??...I'll be forever greatful. Thanks!
Old 04-26-2015, 07:48 AM
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gdh
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Last summer I swapped in a ZZ383. The online info from GM said that it woukd accept both the 10.5" and the larger clutch that I had on my existing 383. I ended up having to order a GM flywheel as it was July 4 week, all the mfg of flys had shutdown and no one had what I wanted in stock. GM recommended 2 flys, a lighter nodular steel and a regular steel fly. Both I was told would work with the larger and smaller clutch, I ordered both flys into my local dealership. Brought in my clutch and no way it would fit - too big. I ordered a CenterForce 10.5 bolted up fine.
Old 04-26-2015, 08:12 PM
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jnb5101
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The crank flanges are different for a one piece and a two piece rear seal. Your new crate engine is probably a one piece seal and needs the corresponding flywheel. The bolt patterns are different. Your engine guy should know this.
Old 04-26-2015, 09:17 PM
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63mako
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11" won't fit that. Need a 10 1/2
Old 04-28-2015, 02:10 PM
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Paintedred72
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http://pages.ebay.com/motors/link/?n...371392&alt=web

?..

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