Thread Sealant?
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Joined: Dec 2007
Posts: 7,987
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From: Boise, Idaho
Engine oil is a must. Or, if you want to step it up, some sort of assembly lubricant. You want this on the threads as well as on any washers/bolt heads that make surface contact.
ARP 100-9908: Ultra-Torque Assembly Lube 0.5 ounces | JEGS
This helps to make sure that all of your torque specs are much more accurate since there's no "sticking" from metal on metal. You want the actual torque being applied to the head itself.
As for thread sealant, the head bolts on the 300 do not pass through any water jackets, so no.
ARP 100-9908: Ultra-Torque Assembly Lube 0.5 ounces | JEGS
This helps to make sure that all of your torque specs are much more accurate since there's no "sticking" from metal on metal. You want the actual torque being applied to the head itself.
As for thread sealant, the head bolts on the 300 do not pass through any water jackets, so no.
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