Cylinder Head Stud Kit for Ford 390-428 FE series with Blue Thunder heads

Cylinder Head Stud Kit for Ford 390-428 FE series with Blue Thunder headsIt is for good reason that virtually every top professional enginebuilder relies on ARP Pro Series head studs for their all out competitionpowerplants. Simply stated, theres not a better stud setupon the market today. For openers, ARP only uses premium grade 8740 alloy anda proprietary ARP2000 alloy that are rated far superior to aircraftquality alloy steels. Secondly, each stud is placed verticallyinto special racks and precisely heat treated to

The nuts feature a wide base for better load distribution and sealing

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

including the elimination of main cap walk and fretting

High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates theneed for valve train removal to facilitate cylinder head retorquing

square drive forged into bolt head

drive ratchet orbreaker bar to facilitate rotating the crank assembly

Nuts not included

low-profile design

To provide you with required reliability and improved performance

To cure this all-too-common problem

The Pro Series bolts

Finish 2: Polished