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Old 09-28-2009, 05:35 PM   #1
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crankshaft help
trying to install my stock crank in a 350 but when ever i tighten the main caps the crank locks up and i have checked that the main caps are in the right order any help would be great thanks
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Old 09-28-2009, 05:53 PM   #2
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Re: crankshaft help
are the main caps facing the right way?
are you sure you have the right bearings?
try tightening them one at a time see if you can turn the crank
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Old 09-28-2009, 07:31 PM   #3
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Re: crankshaft help
there all facing the right way and im using the standard size bearings for it its a its a 3970010 block and a 3932442 crank and ive tried tightening just one cap at a time andsoone as i tighten one it locks but when i was tearing it apart the first time the crank spun freely with the old bearings in it so i dont know
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Old 09-28-2009, 07:37 PM   #4
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Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt

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Re: crankshaft help
You may have mis-labeled oversize bearings. Did you measure them (thickness)?
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Old 09-28-2009, 08:35 PM   #5
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Car: 1986 Camaro
Engine: 383 SBC
Transmission: TH350, 8" Converter
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Re: crankshaft help
sometimes the fillet on the crank requires narrow bearings.
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TH350, RMVB. ATI 8" converter.
Strange S60 With 4:11's and Detroit Locker. Strange Adj Shocks
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Old 09-28-2009, 08:35 PM
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