Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
There are many important reasons to use ARP main stud kits including the elimination of main cap walk and fretting as well as protecting the threads in your engine block
7 / 5900 rpm
ARP 201-6001 - ARP BMW 4
super-alloy field
1 / 5700 rpm + 6
ARP 201-4305 Head Stud Kit for BMW 2.5L M20 ymm_28 There are many important reasonsIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, theres not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200, 000 psi. This procedure ensures complete heat