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Pilot Bearing Problem

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Old May 16, 2002 | 01:35 PM
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ruskus
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From: Scotch Plains NJ
Default Pilot Bearing Problem

Help - I purchased a new engine. It has a 427 crank shaft. My mechanic is in the process of installing the engine and the standard chevy pilot bearing doesn't fit. The hole is too small. He checked with Chevy and they have only two bearings listed, the standard he has, and a roller bearing, which still will have the same OD.
I haven't heard back from the engine mfg. yet, but was wondering what the problem may be? How to fix the problem? Any other comments?
THanks.

RUss :confused:
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Old May 16, 2002 | 01:37 PM
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RatRacer
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Default Re: Pilot Bearing Problem (ruskus)

There is only one size for all chevy pilot bushings.
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Old May 16, 2002 | 01:43 PM
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ruskus
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Default Re: Pilot Bearing Problem (RatRacer)

There is only one size for all chevy pilot bushings.
Yeah, that's what my mechanic told me too. Corvettes the same all the way back to 1953.

Russ
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Old May 16, 2002 | 05:39 PM
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From: Carmichael CA
Default Re: Pilot Bearing Problem (ruskus)

I've heard from other forum members that the crankshaft used for Automatic tranny vettes does not have the hole machined for a pilot bearing. You option I suppose is to drill the hole the right size, and it should be done by a machine shop to get it in there straight. The other option is to get another crank.
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Old May 16, 2002 | 05:45 PM
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From: Texas
Default Re: Pilot Bearing Problem (Rockn-Roll)

All GM big block chevy cranks are the same for either auto or manual trannys.
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