posted 06-19-2001 11:06 PM
I'm installing an aluminum intake manifold on a 5.0 based engine with AFR 185 aluminum heads. The specs with the heads say to "hand tighten" the intake bolts. This is a little vague. Since these heads do not have steel insert threads, does anyone know a reasonable torque figure to use on the intake bolts. Thanks, Bernie
------------------ Bernie Frank 66 Fastback restomod project 67 Coupe (original) 85 GT (preserved) 82 GT (original)
Posts: 8489 From: Lyons, IL, USA Registered: May 99
posted 06-20-2001 11:35 AM
Follow the torque sequence gradually several times until you can barely move a 3/8th ratchet anymore. Or, about 30 ft lbs.
------------------ Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member NHRA and IHRA SS/LA National Record Holder '00 & '01 Fleet of FoMoCo products Moneymaker Bio US Class Nationals link
Posts: 175 From: Bay Area, CA Registered: Apr 2001
posted 06-20-2001 01:50 PM
I've always tourqued my aluminum intake to my TFS heads to 25 ft lbs. I do it again after I drive it around(after it cools) and have never had a leak.