Every ARP stud kit exceeds the most stringent aerospace specifications.

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality.

All Custom Age 625+® studs are centerless ground, heat treated prior to thread rolling and machining, and are nominally rated at 270,000 psi. These fasteners deliver a 30% increase in tensile strength over the OEM Torque To Yield (TTY) head bolts.

ARP 102-2803 SR20DET Flywheel Bolts

ARP High Performance Rods Bolts are made from a premium grade 8740 allow chrome moly steel. This material is heat treated to provide a tensile strength in the 200,000 range, which is substantially stronger the OEM. Cycle testing shows that ARP High Performance Rods Bolts are nearly 5 times more reliable than stock Rod Bolts.

These ARP Main Studs are manufactured from 8740 Chrome Moly steel, heat treated in-house to 200,000 psi tensile strength. The precision J-form threads are rolled after heat-treating to create a fastener that threads 1000% stronger than others. All Kits come complete with parallel-ground washers and aerospace quality nuts. Don't settle for anything less then the best.

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality.

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality.

ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then each Stud is placed vertically in special racks and precisely heat treated to 200,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality Studs from other manufacturers. Also Remember, Studs provide more accurate and consistent torque loading.

It 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, there's 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. 

It 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, there's not a better stud setup on the market today.

ARP Main Stud Kit for RB26DET

ARP uses premium grade 8740 alloy that is heat treated to 200,000 p.s.i. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. Following heat treat, each stud is centerless ground to make it as close to perfectly concentric as possible.

ARP main studs eliminate main cap walk and fretting as well as protecting the threads in your engine block.

A large number of connecting rod manufacturers have chosen ARP bolts as standard equipment. They're proud to advertise their products as being equipped with ARP rod bolts. And for good reason. 

ARP head stud kit for CA18DET motor
Great to install when changing to metal headgasket
Please torque down the head to around 75ft lbs of torque

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