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Cylinder head torque & sequence for 1951 flathead six


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  Can I get a straight for sure answer from the old timers out there for the sequence and torque of the head "bolts" of my 1951 Dodge 2 1/2 ton flathead 6-cylinder.  I keep getting different numbers & want it done right.  Thanks in advance.

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This...right out of the B3 series DT Shop manual... Torque the head to 65-7- LBS  in three steps... recheck hot torque once more.

Cylinder Head Torque and pattern 23  25 inch Engines B3 DT (1).JPG

Cylinder Head Torque and pattern 23  25 inch Engines B3 DT (2).JPG

Edited by Dodgeb4ya
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Thanks so much.  Help me out again, if you can.  The gasket I got is copper on (1) side & Fel-Pro paper/cardboard on the other.  Which side goes up & which side goes down? 

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 Copper side to the block.

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11 hours ago, Dodgeb4ya said:

 Copper side to the block.

Am I thinking right the gasket only goes one way to line up with everything?

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 1950 and back can be installed either way... end for end..doesn't matter as I recall.

1951 up with the internal bypass... gasket installs only one way....

These are instructions from the Montana Boys website..maybe they are wrong on this copper/ comp head gasket info?

I only use full copper gaskets myself coated both sides with copper coat.

Cylinder head torque and copper comp gasket orientation.PNG

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  • 1 month later...

Should Aviation Gasket Maker be used to seal head bolt threads even though it lacks PTFE? Also, the previous post mentions using head bolt washers under head bolts. But most of the engine photos I've seen don't show washers under the head bolts. Has anyone used them under head bolts?

Edited by Jocko_51_B3B
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