Help on head bolt torque specs

omar · 07-28-2009, 06:31 AM

Need help on OEM head bolt torque specs for a 7M-GTE... should i torque them to 58ft

Please help thanks!

mirage83 · 07-28-2009, 01:51 PM

72 ft/lbs for stock bolts. The 58 ft/lb original spec is responsible for a lot of BHG's as it's simply too low for the GTE.

If this is a newly rebuilt engine (or you replaced the head gasket, etc), after 5 heat soaks you'll want to re-torque them.

Kevin · 07-29-2009, 04:36 AM

hey just wondering.. retorque as in.. loosen them then torque them again? or.. dont loosen them.. and just torque it again

mirage83 · 07-29-2009, 11:35 AM

Loosen slightly, then re-torque it in the proper sequence by the TSRM. This is after 5 or so heat-cycles. Call it insurance against BHG's, something we all should invest in.

07-28-2009, 06:31 AM	#1
omar Stock Join Date: Mar 2009 Location: los Angeeles Posts: 2	Help on head bolt torque specs Need help on OEM head bolt torque specs for a 7M-GTE... should i torque them to 58ft Please help thanks!

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07-28-2009, 01:51 PM	#2
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	72 ft/lbs for stock bolts. The 58 ft/lb original spec is responsible for a lot of BHG's as it's simply too low for the GTE. If this is a newly rebuilt engine (or you replaced the head gasket, etc), after 5 heat soaks you'll want to re-torque them.

07-29-2009, 04:36 AM	#3
Kevin 3" Exhaust Join Date: Apr 2009 Location: Ontario, Canada Posts: 194	hey just wondering.. retorque as in.. loosen them then torque them again? or.. dont loosen them.. and just torque it again

07-29-2009, 11:35 AM	#4
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	Loosen slightly, then re-torque it in the proper sequence by the TSRM. This is after 5 or so heat-cycles. Call it insurance against BHG's, something we all should invest in.