Big Coolant Problem
#11
thank you thank you thank you everyone an there mother thinks they need a .20 over
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not worth it unless you run BIG power
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not worth it unless you run BIG power
Last edited by big bad diesel 416; 09-08-2010 at 01:09 AM. Reason: Automerged Doublepost
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Rusty89Cummins (09-08-2010)
#12
#13
The tophats give a better seal and have a flange that fits under the valve spring and holds the seal down. All the complete head gasket sets I've seen come with the tophat seals and you have to buy the old style ones separate at a cost of about $50 for the set if you want to use them.
I've also heard that a head with tophats has less chance of cracking, because of having a radius machined around the valve seat instead of a square cut. I couldn't confirm that though.
I've also heard that a head with tophats has less chance of cracking, because of having a radius machined around the valve seat instead of a square cut. I couldn't confirm that though.
#14
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