Mopar/Miller Service Tool C-3666

flagship Posted 2020-08-31 9:47 AM (#602753) Subject: Mopar/Miller Service Tool C-3666 Member Posts: 7 Wanting to locate a Miller C-3666, which was used for torqueing head bolts. Any assistance greatly appreciated! Kurt karends@cox.net matador440 Posted 2020-09-01 10:17 PM (#602816 - in reply to #602753) Subject: RE: Mopar/Miller Service Tool C-3666 Elite Veteran Posts: 690 Location: BELTSVILLE, MARYLAND 20705 This tool was used back in the day when head gaskets needed to be re torqued. Head gaskets made today (FEL PRO) are made of a material called PERMA-TORQUE. With the use of this material head gaskets do not need to be re torqued. This kind of makes the tool C-3666 obsolete. Unless someone is using very old metal head gaskets. It has become A good old tool or a conversation piece, if any are still around