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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
Precision threads are rolled after heat treatment to ensure accurate torque values and superior fatigue resistance
363˝ Diameter - Pitch M12 x 1
Due to more direct gas flow
this innovative design comes directly from race-proven exhaust systems
HIGH PERFORMANCE SERIES: High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing
ARP 256-4702 FORD Coyote 5.0L head stud kit ymm_23 Precision threads are rolled afterIt 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