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Re: Cummins NH220 torque spec main and connecting rod
Posted to HD/Fleet Forum on 4/10/2012 17 Replies

NH220 engines, with a 5 1/8 inch bore and having only six head bolts, required 430/450 ft. lbs. of torque for those head bolts. Great exercise. Didn't you just love it. Login to read more.

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