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Re: head bolt torque spec, Mack 8.8L / 538 cu.in
Posted to HD/Fleet Forum on 10/11/2013

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Don't be jealous! Haha cust say this is the last major repair....yeah right. Anyways I found that spec too but this model has 14 & 20mm bolts. I went with 337 ft lbs on the big bolts. Generic bolt to... Login to read more.