ARP fasteners Main Stud Kit, 2-Bolt Main Hex Nut AR154-5401 Product:fits SB Ford 289-302 Windsor When using this with an

When using this with an ECU other than the Thunder

8mm (4-9/32")

Polished Finish

Includes 30

ARP fasteners Main Stud Kit, 2-Bolt Main Hex Nut AR154-5401 Product:fits SB Ford 289-302 Windsor When using this with anMain Stud Kit, 2 Bolt Main Hex Nutfits SB Ford 289 302 Windsor Brand: ARP Part Number: AR154 5401 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