Which head gasket? - Dodge Cummins Diesel Forum
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post #1 of 6 (permalink) Old 04-06-2019, 11:09 AM Thread Starter
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Which head gasket?

Long story short got my head milled and was warped pretty bad they said they took off .014 and told me to get a thicker head gasket. They werent sure what sizes were out there so they couldnt tell me on the spot. I looked it up and i found cummins makes the standard thickness, .010 thicker and .020 thicker.

My question is which 1 should i go with? .010 thicker? Or .020?

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post #2 of 6 (permalink) Old 04-06-2019, 03:34 PM
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The thicker head gaskets are for engines that have had the deck shaved and take up the space of piston protrusion. If you only had a valve job done you should only need a stock thickness gasket.

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post #3 of 6 (permalink) Old 04-06-2019, 04:01 PM Thread Starter
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Oh really? Even with .014 taken off? And what about valves? Do i have to worry about valves hitting pistons?
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post #4 of 6 (permalink) Old 04-06-2019, 05:15 PM
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Quote:
Originally Posted by Pchris View Post
Oh really? Even with .014 taken off? And what about valves? Do i have to worry about valves hitting pistons?
Yes really. If you had to worry about the valves hitting the pistons I would have told you. I'm assuming the machine shop knows how to do a valve job, however, since they advised you to get a thicker head gasket I have my doubts.

97 3500, 2 WD, G56, slightly bombed, 1.3 million miles. Started the second million on 8/24/13
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post #5 of 6 (permalink) Old 04-06-2019, 05:25 PM Thread Starter
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Okay great thank alot man
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post #6 of 6 (permalink) Old 04-07-2019, 01:08 PM
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Measure how deep the valves are recessed into the head. Cummins recommends min .039 to max .060
Taking .014 off the heads surface shouldn't be enough to get it below min valve depth, if it did the valves need reworked.
As GAmes said different gasket thickness are for blocks that have been decked like mine.

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