Author Topic: 390 ARC rod bolt torque  (Read 3001 times)

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Offline 2nstoys

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390 ARC rod bolt torque
« on: August 22, 2012, 04:17:53 PM »
Lost my sheet with the info. Anyone know the torque for the ARC rod bolts?


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Offline Cromwell C4

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Re: 390 ARC rod bolt torque
« Reply #1 on: August 22, 2012, 04:50:55 PM »
Just going from memory here but i believe it is 240" lbs or 20 ft lbs.
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Offline George Herrin

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Re: 390 ARC rod bolt torque
« Reply #2 on: August 22, 2012, 05:44:17 PM »
 IF ITs 5/16 - 12 point heads 30ft lbs, or 1/4" -12 point heads 170"lbs.
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Offline Ron Atchison/A.C.E. Race Engines

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Re: 390 ARC rod bolt torque
« Reply #3 on: August 23, 2012, 11:24:13 AM »
You might wanna try 26# with a drop of Loctite 271. This procedure can keep for bolt from loosening up when the top rod cap start to collapse within the oil hole, this can prevent immediate failures.
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Offline 2nstoys

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Re: 390 ARC rod bolt torque
« Reply #4 on: August 23, 2012, 08:03:26 PM »
Thanks all.
Glenn VanEpps
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