drlogistics
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Does anyone know which, if any, of the head bolts on the GMC 302 require sealant? I've been following the TM's and couldn't find anything about putting sealant on the bolts.
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Head bolt sealant
- Thread starter drlogistics
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Mastertech
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Well I dont Know for sure either way, Ive never had a head off of one these motors But if any of them go into coolant pages then that would be the ones you should use the sealer on. IMHO.
mudman
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Anti Seize works just fine.
JasonS
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I seem to remember them all being blind holes.
Stan Leschert
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Ask the guys at Alfa Heaven. They know the tricks. Memphis Equip might still have an old wrench hanging around, I could make suggestions, but talk to the smart guys!
butch atkins
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Per TM9-1819AA,July 1952, TM9-8025-1,May 1958.Both of these are GMC 302 motor manuals,neither one says anything about sealant on head bolt threads,using anti seize is a good idea.Bolt heads with 3 lines on the head of the bolt are torqued to 70-80 ft/lbs ,while bolt heads with 6 lines on them are torqued to 90-100 ft/lbs.however the waterpump bolts are mentioned as having sealant on them ,and 18-24 ft/lbs torque.Good luck on all your projects
drlogistics
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Thanks for all the info guys. All 15 of my bolts have 6 lines so they got torqued to 100 ft/lbs. Here's some pics.
