ARP fasteners Main Stud Kit, 4-Bolt Main AR234-5608 253 304 308 And Precision J-form Threads Rolled

And Precision J-form Threads Rolled After Heat-treat To Create A Fastener That Has Threads 1000% Stronger Than Others

9L V6 & SB/BB 273-440 With 6-Bolt Crank 7/16-20 x

DO NOT USE with Fuel Pressure

E85 / Alcohol compatible

D x 4-39/64" (117mm) Top O

ARP fasteners Main Stud Kit, 4-Bolt Main AR234-5608 253 304 308 And Precision J-form Threads RolledMain Stud Kit, 4 Bolt Mainfits GM LS Series & GMPP LSX Block Brand: ARP Part Number: AR234 5608 Description: 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. The Studs Are Manufactured In Our Own Factory Using The Best Materials, Processes, Designs And Engineering. Every Arp Main Stud Kit Exceeds The Most Stringent Aerospace