Stud Girdle Adjustment Nuts-Available in (8) pack. Requires 2 packs. Buy now for $55.00 which includes shipping within U.S. mainland.

• 7/16″ Stud
• .600″ Base
• 2.2″ Long
• Because the Jomar Stud Girdle is designed to mount above the rocker arms, extended adjustment nuts (poly-locks) are necessary to provide the required mounting capabilty.Pro-Model Girdle Bars
• All heads with in-line studs use 2.0″ Adjustment Nuts.
• 351C Ford, 460CJ(A429), Ford Blue Thunder use 2.2″ Adjustment Nuts.
• BB Chevy uses 2.6″ Adjustment Nuts on intake studs and 2.0″ on exhaust.
• “A460″ Ford (TFS or SVO Heads) use 2.6” Adjustment Nuts
• Ultra-Lite Girdle Bars
• All heads with in-line studs use 2.0″ Adjustment Nuts.
• TFS SBC G-2 “Twisted Wedge” heads use 2.2″ Adjustment Nuts.
• BB Chevy uses 2.6″ Adjustment Nuts on intake studs and 2.0″ Nuts on exhaust.
• Note: All Adjustment Nuts come in packs of 8. You will need 2 packs to equip both heads of an engine. That’s why when your ordering Stud Girdles and you’re selecting adjustment nut options, you see “qty of 2”.
  

  Rocker Arm/ Adjustment Nut Base Dia. Cross Reference
  Harland Sharp 1.73 ratio	.600″ Diameter Base