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![Screw-In Rocker Studs for Big Block Chevy Exhaust [7/16 in., Chromoly]](https://www.jegs.com/images/mini_750/0/033/033-6406-8.jpg)
Vehicle Info NeededAFR - AIRFLOW RESEARCHPART NUMBER: 033-6406-8
Screw-In Rocker Studs for Big Block Chevy Exhaust [7/16 in., Chromoly]
$4680$52.00You Save$5.20
Ships on 10/19/2026
Lowest Price GuaranteeScrew-In Rocker StudBig Block Chevy Exhaust 7/16 in.-14 Base Thread 7/16 in.-20 Rocker Nut Thread 2.010 in. Effective Length Chromoly Steel Set of 8
A rocker stud that wobbles going into the head threads never seats straight, and once that happens the rocker geometry is off before the engine even turns over. These studs run in true every time and are heat-treated to hold up under a big block's spring pressure.
AFR 6406-8 Screw-In Rocker Studs Features:
- Fits big block Chevy exhaust rocker positions
- 7/16 in.-14 base thread
- 7/16 in.-20 rocker nut thread
- 2.010 in. effective stud length
- Premium-grade chromoly steel
- Heat-treated for tensile strength
- Set of 8
Part TypeRocker Arm Stud
BrandAFR - AIRFLOW RESEARCH
Package Width0.25
Package Length2.010 in
Weight0.25 PG
Part CategoryPerformance Parts
QuantitySet of 8
MaterialChromoly Steel
Thread Size7/16 in-14
Part FitmentDirect Fit
Vendor Part Number6406-8
Package Qty1
Package TypeEA
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