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401head bolt torqueing sequence.

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    Posted: Dec/05/2017 at 11:53am
Seen 2 different torqueing orders posted. One from the TSM. One supposedly an updated version. Which should be used?
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Torque the furthest out head bolts on the exhaust side last in the sequence.

That order was devised to assist in preventing the head from cracking in those areas.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Dec/05/2017 at 12:01pm
They both work, just do smaller increments than stated in the manual. I use a simple 3/8 drive to quickly get the bolts hand tightened about 10ft lbs, while following the sequence order. Then bring out the torque wrench to toque to 15 ft-lbs and continue to increase in 15ft-lbs incréments. Takes a wee longer to get there but effectively torques the heads in place.

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