SBC 400

[Shannen Durphey]

20 thousandths, as in .020"??  Stock specs are around .005" max, so
you've got a hell of a knocker there!  I've had one sb Chebbie with
excessive crank end play, sounded like a rod bearing going out.  Loud
enough to scare small kids when under load.  Luckily, the rear bearing
(which is also the thrust surface) was the worn part, not the crank. 
So new bearings solved the problem.  Don't know what to recommend if
it's not the bearing, except be prepared to r&r the crank...
Shannen

dzorde at erggroup.com wrote:
> 
> Hi all,
> 
> This is slightly efi unrelated, but with all the knowledgeable US folk on this
> list, I am hoping someone can tell me if 20 thou end float on a SBC 400 crank is
> acceptable and what do you do if its not ?
> 
> Tah in advance
> 
> Dan  dzorde at erggroup.com
> 
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