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. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 190,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.

More From This Category

JESEL Bolt, ARP TORX™ 50 Stand, 7/16-14 x 1.000 in., Set of 8

JESEL Bolt, ARP TORX™ 50 Stand, 7/16-14 x 1.000 in., Set of 8

$115.65

View
ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SB2-2 7/16 in. Block w/ 220 ksi ARP2000, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Nut, For Chevrolet SB, SB2-2 7/16 in. Block w/ 220 ksi ARP2000, Kit

$683.34

View
ARP Valve Cover Bolts, Stainless 12-Point, Stamped Steel Cover, Set of 14

ARP Valve Cover Bolts, Stainless 12-Point, Stamped Steel Cover, Set of 14

$70.19

View
Dart Cylinder Head Stud, 8740 Chromoly, 1/2 x 7.250 Ford Iron/Black, Each

Dart Cylinder Head Stud, 8740 Chromoly, 1/2 x 7.250 Ford Iron/Black, Each

$26.01

View
ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Chevrolet BB, For Pontiac Aluminium head, Dart Big Chief, Kit

ARP Cylinder Head Bolts, 12-point Head, Pro-Series, For Chevrolet BB, For Pontiac Aluminium head, Dart Big Chief, Kit

$639.81

View