Retorquing head......question
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Burning Brakes
Joined: Jan 2007
Posts: 1,093
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From: Spring City Tn
Retorquing head......question
I am putting the drivers side aluminum head back on my '86 Saturday. Is there anything special I need to put on the head bolts besides a little anti-sieze? What ever was on the head bolts from GM felt like dried rubbery silicon...........thanks
Le Mans Master
Joined: Aug 2007
Posts: 8,735
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From: WV
There should be a sealer on the threads and lube used on the underside of the head bolts, if a lube isn't used the final torque number may not be reached. .Also be sure to chase the threads before installing the heads.WW
Below is a quote from the 383 build that Pete K did for me, he explains how to prep the head and bolts for assemble..WW
Quote: Now that we are sure that all is well in the valvetrain, The heads and deck surfaces get a final wipe, and blown off with air. Gasket is set on the locating pins
Head is placed, and torqued in 3 steps to the final factory torque spec.
My preferred sealant on the bolt threads is Permatex liquid teflon.
I also use a thin smear of ARP bolt lube to reduce friction where the back side of the bolt's head contacts the head boss.
.
Below is a quote from the 383 build that Pete K did for me, he explains how to prep the head and bolts for assemble..WW
Quote: Now that we are sure that all is well in the valvetrain, The heads and deck surfaces get a final wipe, and blown off with air. Gasket is set on the locating pins
Head is placed, and torqued in 3 steps to the final factory torque spec.
My preferred sealant on the bolt threads is Permatex liquid teflon.
I also use a thin smear of ARP bolt lube to reduce friction where the back side of the bolt's head contacts the head boss.
.
Last edited by WW7; Jul 16, 2010 at 08:53 AM.
Le Mans Master
Joined: Mar 2001
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From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
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Cruise-In IV Veteran
St. Jude Donor '12
There should be a sealer on the threads and lube used on the underside of the head bolts, if a lube isn't used the final torque number may not be reached. .Also be sure to chase the threads before installing the heads.WW
Below is a quote from the 383 build that Pete K did for me, he explains how to prep the head and bolts for assemble..WW
Quote: Now that we are sure that all is well in the valvetrain, The heads and deck surfaces get a final wipe, and blown off with air. Gasket is set on the locating pins
Head is placed, and torqued in 3 steps to the final factory torque spec.
My preferred sealant on the bolt threads is Permatex liquid teflon.
I also use a thin smear of ARP bolt lube to reduce friction where the back side of the bolt's head contacts the head boss.
.
Below is a quote from the 383 build that Pete K did for me, he explains how to prep the head and bolts for assemble..WW
Quote: Now that we are sure that all is well in the valvetrain, The heads and deck surfaces get a final wipe, and blown off with air. Gasket is set on the locating pins
Head is placed, and torqued in 3 steps to the final factory torque spec.
My preferred sealant on the bolt threads is Permatex liquid teflon.
I also use a thin smear of ARP bolt lube to reduce friction where the back side of the bolt's head contacts the head boss.
.
