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Old 08-08-2017, 09:39 AM   #1
redmodelt
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Default 1948 H 226 engine head bolt torque and V8's

Quick question (ok two) what is the torque for the head bolts and does anyone have a chart to show proper order to tighten the bolts?
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Old 08-08-2017, 10:47 AM   #2
flatheadmurre
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Default Re: 1948 H 226 engine head bolt torque

Says 65-70lbs in the manual.
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Old 08-08-2017, 07:14 PM   #3
redmodelt
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Default Re: 1948 H 226 engine head bolt torque

Thank you very much. Just what I needed.
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Old 08-09-2017, 02:07 PM   #4
grumppyoldman
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Default Re: 1948 H 226 engine head bolt torque

Is that no. good for all flatheads V-8's too? Al
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Old 08-12-2017, 08:51 AM   #5
redmodelt
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Default Re: 1948 H 226 engine head bolt torque and V8's

Added V8 to title. I'll bump it and see if we can find out.
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Old 08-12-2017, 09:41 AM   #6
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Default Re: 1948 H 226 engine head bolt torque and V8's

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A little high for what a lot of people like for the v8. The thickness of the head surface on the v8 is fairly thin. Also that high a torque is not required to get a good head gasket seal. Around 55 works fine in most cases.
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Old 08-12-2017, 09:51 AM   #7
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Default Re: 1948 H 226 engine head bolt torque and V8's

Thanks for the reply JS, now that I've tightened mine to 60 ft. lbs. Al
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Old 08-12-2017, 08:53 PM   #8
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Default Re: 1948 H 226 engine head bolt torque and V8's

Torque to 65-70 like the manual states. Also the manual states- 65-70 for the 8BA. Cylinder head nuts for both the 6 and the 8 is 50-55.
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