ArdWrknTrk Posted August 19, 2017 Share Posted August 19, 2017 Purist ! Yes, they're place bolts. You can tell by the castellated and undercut head. You shouldn't really need any threadlocker. The undercut head of a place bolt acts as a belville washer to maintain clamping force. Carroll Smith mentions in his book that these bolts are used on farm and construction equipment. That Deere or Caterpillar bolts are just as good. ARP have made a name for themselves and are good fasteners, but they probably weren't around when he took the GT40 to LeMans to trounce Ferrari. It's been eight years since I swapped engines. The bolts were ~$1.25 from Ford at that time. Link to comment Share on other sites More sharing options...
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