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Rocker Arm Fastener Kits

Rocker Arm Fastener Kits

Rocker Arm Fastener Kits

Circle Track Rocker Arm Fastener Kits at JJ Motorsports

Secure and stabilize your circle track engine's rocker arms with high-performance fastener kits from JJ Motorsports. Designed to prevent flex and ensure precise valve control under high-RPM conditions, these kits include studs, nuts, and girdles for reliable operation in demanding IMCA, USMTS, and dirt oval racing for late models, modifieds, and street stocks.

Shop trusted brands like Allstar Performance for SBC kits, Comp Cams for GM LS-series options, ARP for stainless steel studs, Moroso for high-flow designs. Explore related categories such as Circle Track Engine Fastener Kits for additional hardware or Circle Track Camshafts and Valvetrain for matching components.

Top Circle Track Rocker Arm Fastener Kits

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Rocker Arm Stud Kit SBC 8 pcs ALL90230

    Allstar Performance Rocker Arm Stud Kit SBC 8 pcs ALL90230

    ALLSTAR PERFORMANCE

    $13.69
    Rocker arm studs are critical fastening points that anchor your rocker arms to the cylinder head—and inferior studs will loosen, slip, or fail under high RPM and valve spring pressure. The Allstar Performance ALL90230 kit delivers proven reliability with...
    ALL90230
    SKU:
    ALL90230
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    MFG Part #:
    ALL90230
    $13.69
    Qty in Cart: 0
    Quantity:
    Price:
    $13.69
    Subtotal:
  • rocker arm stud kit gm ls7/lt 4587-kit

    Comp Cams Rocker Arm Stud Kit GM LS7/LT 4587-KIT

    COMP CAMS

    $120.95
    Rocker arm studs are critical fasteners that anchor your valvetrain under extreme loads—worn or inadequate studs can lead to valvetrain failure and catastrophic engine damage. The Comp Cams 4587-KIT delivers OEM-spec replacements with precision machining...
    COM4587-KIT
    SKU:
    COM4587-KIT
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • rocker arm stud kit gm ls1/ls3 4582-kit

    Comp Cams Rocker Arm Stud Kit GM LS1/LS3 4582-KIT

    COMP CAMS

    $112.95
    Rocker arm studs are critical fasteners that anchor your valvetrain under extreme loads—worn or inadequate studs can lead to valve float, timing issues, and catastrophic engine failure. This Comp Cams kit delivers OEM-spec durability with a complete...
    COM4582-KIT
    SKU:
    COM4582-KIT
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    $112.95
    Qty in Cart: 0
    Quantity:
    Price:
    $112.95
    Subtotal:
  • stud girdles adj nut 1pk 3/8 sbc/sbf 6216-1

    Air Flow Research Stud Girdles Adj Nut 1pk 3/8 SBC/SBF 6216-1

    AIR FLOW RESEARCH

    $9.00
    Rocker arm nuts are critical fasteners that secure your valve train under extreme loads and high RPM conditions. A properly spec'd nut like this Air Flow Research stud girdle design prevents loosening, valve float, and catastrophic engine damage. For...
    AFR6216-1
    SKU:
    AFR6216-1
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    $9.00
    Qty in Cart: 0
    Quantity:
    Price:
    $9.00
    Subtotal:
  • stud girdles adj nut (1) 6214-1

    Air Flow Research Stud Girdles Adj Nut (1) 6214-1

    AIR FLOW RESEARCH

    $9.00
    Proper rocker arm assembly depends on hardware that can withstand constant valve train stress without slipping or loosening. This Air Flow Research stud girdle adjustment nut delivers the clamping force and durability required for reliable, repeatable...
    AFR6214-1
    SKU:
    AFR6214-1
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    $9.00
    Qty in Cart: 0
    Quantity:
    Price:
    $9.00
    Subtotal:
  • Rocker Arm Nuts 7/16-20 Sure-Lock Design CRO86050S-16

    Rocker Arm Nuts 7/16-20 Sure-Lock Design 86050S-16

    CROWER

    $56.99
    Rocker arm nuts are a critical fastening component in any high-performance engine build—improper retention can lead to valve train failure and catastrophic engine damage. The Sure-Lock design prevents vibration-induced loosening, ensuring your rocker...
    CRO86050S-16
    SKU:
    CRO86050S-16
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $56.99
    Subtotal:
  • Mounting Bolt - 7/16 x 2.000 YTRYT6088

    Mounting Bolt - 7/16 x 2.000 YTRYT6088

    YELLA TERRA

    $4.99
    Rocker arm bolts are critical fasteners that secure your valve train geometry under extreme loads and RPM swings. A quality bolt like this Yella Terra unit prevents deflection and slippage that can cause valve timing issues, increased wear, and...
    YTRYT6088
    SKU:
    YTRYT6088
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    YT6088
    $4.99
    Qty in Cart: 0
    Quantity:
    Price:
    $4.99
    Subtotal:
  • 12pt Flange Bolt - Stand 7/16-14x1-1/2 TDM05225

    12pt Flange Bolt - Stand 7/16-14x1-1/2 5225

    T AND D MACHINE

    $4.99
    Rocker arm stand bolts are critical fasteners that anchor your rocker arm assembly to the cylinder head—any slack or failure here compromises valve timing and can lead to catastrophic engine damage. This 12-point flange bolt features precise 7/16-14...
    TDM05225
    SKU:
    TDM05225
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    05225*
    $4.99
    Qty in Cart: 0
    Quantity:
    Price:
    $4.99
    Subtotal:
  • Stand Bolt - 7/16-14 x 1.250 12pt TDM05220

    Stand Bolt - 7/16-14 x 1.250 12pt 5220

    T AND D MACHINE

    $3.99
    Rocker arm stand bolts are critical fasteners that maintain precise valve train geometry under extreme engine loads. A quality bolt like this 7/16-14 ensures consistent clamping force cycle after cycle, preventing valve train deflection that compromises...
    TDM05220
    SKU:
    TDM05220
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    5220
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • 12pt Flange Bolt - Stand 7/16-14 x 7/8 TDM05205

    12pt Flange Bolt - Stand 7/16-14 x 7/8 5205

    T AND D MACHINE

    $3.99
    A properly secured rocker arm stand is critical to engine reliability and consistent valve train geometry. This 12-point flange bolt delivers precision fitment and repeatable clamping force where it matters most. Whether you're building a race engine or...
    TDM05205
    SKU:
    TDM05205
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    MFG Part #:
    5205
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • 5/16 Hold Down Nut - 12pt. TDM05120

    5/16 Hold Down Nut - 12pt. 5120

    T AND D MACHINE

    $3.99
    Rocker arm assemblies demand precise fastening to maintain valve train geometry and prevent slippage under high RPM conditions. This 5/16 hold down nut delivers the clamping force and thread integrity needed for consistent performance, whether you're...
    TDM05120
    SKU:
    TDM05120
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    MFG Part #:
    5120
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • Shaft Bolt - 5/16-18 x 1.250 12pt. TDM05106

    Shaft Bolt - 5/16-18 x 1.250 12pt. 5106

    T AND D MACHINE

    $8.99
    A quality rocker arm shaft bolt is critical to maintaining proper valve train geometry and preventing costly engine damage from fastener failure. This 5/16-18 x 1.250 12-point steel bolt delivers the precision fitment and reliable clamping force your...
    TDM05106
    SKU:
    TDM05106
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    5106
    $8.99
    Qty in Cart: 0
    Quantity:
    Price:
    $8.99
    Subtotal:
  • 5/16 x 1.890 Hold Down Stud TDM05051

    5/16 x 1.890 Hold Down Stud 5051

    T AND D MACHINE

    $3.99
    Rocker arm hold down studs are critical fastening points in any high-performance engine build—a loose or failing stud can cause valve train instability and catastrophic engine damage. This 5/16 hold down stud from JJ-Motorsports is manufactured to OEM...
    TDM05051
    SKU:
    TDM05051
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    5051
    $3.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3.99
    Subtotal:
  • Rocker Arm Jam Nut - 7/16-20 12pt. TDM03210

    Rocker Arm Jam Nut - 7/16-20 12pt. 3210

    T AND D MACHINE

    $2.99
    Proper valve train geometry depends on accurate rocker arm adjustment, and a quality jam nut is critical to maintaining that setting under the vibration and thermal cycles of racing or high-performance street driving. This 7/16-20 jam nut locks your...
    TDM03210
    SKU:
    TDM03210
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    3210
    $2.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2.99
    Subtotal:
  • Poly Locks - 7/16 (4pk)  SPNPL716-4

    Poly Locks - 7/16 (4pk) PL716-4

    SCORPION PERFORMANCE

    $15.83
    Rocker arm nuts are critical fasteners that demand absolute security under extreme valvetrain loads and vibration. Standard nuts can loosen over time, leading to valve train damage and catastrophic engine failure. JJ-Motorsports' Poly Locks eliminate...
    SPNPL716-4
    SKU:
    SPNPL716-4
    Availability:
    Ships Same Business Day
    Weight:
    0.26 LBS
    MFG Part #:
    PL716-4
    $15.83
    Qty in Cart: 0
    Quantity:
    Price:
    $15.83
    Subtotal:
  • Poly Locks - 3/8 (4pk)  SPNPL38-4

    Poly Locks - 3/8 (4pk) PL38-4

    SCORPION PERFORMANCE

    $15.83
    Rocker arm nuts are critical fastening points that experience constant vibration and thermal cycling on the track. These Poly Locks deliver reliable, non-slip fastening that won't loosen under extreme engine conditions, keeping your valve train secure...
    SPNPL38-4
    SKU:
    SPNPL38-4
    Availability:
    Ships Same Business Day
    Weight:
    0.29 LBS
    MFG Part #:
    PL38-4
    $15.83
    Qty in Cart: 0
    Quantity:
    Price:
    $15.83
    Subtotal:
  • 7/16 Adjusting Nuts (4pk) SHPPL716K

    7/16 Adjusting Nuts (4pk) PL716K

    SHARP ROCKERS

    $32.99
    Rocker arm geometry demands precision, and loose or worn adjusting nuts compromise both valve timing and engine reliability. These polylock nuts eliminate the need for lock washers and constant re-torquing, keeping your valve train stable through the...
    SHPPL716K
    SKU:
    SHPPL716K
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    MFG Part #:
    PL716K
    $32.99
    Qty in Cart: 0
    Quantity:
    Price:
    $32.99
    Subtotal:
  • 3/8 Adjusting Nuts (4pk) SHPPL038K

    3/8 Adjusting Nuts (4pk) PL038K

    SHARP ROCKERS

    $23.99
    Rocker arm nuts are a critical wear item in any high-revving engine, and improper fastening can lead to valve train instability and catastrophic failure. These PL038K adjusting nuts feature Polylock technology to maintain secure retention under extreme...
    SHPPL038K
    SKU:
    SHPPL038K
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    MFG Part #:
    PL038K
    $23.99
    Qty in Cart: 0
    Quantity:
    Price:
    $23.99
    Subtotal:
  • Aluminum Rocker Nuts  MRG923G

    Mr. Gasket Aluminum Rocker Nuts 923G

    MR. GASKET

    $101.95
    Rocker arm nuts are critical fastening components that secure your rocker arms under extreme valve train stress—loose or failing nuts can cause valve timing issues and catastrophic engine damage. Mr. Gasket's aluminum rocker nuts deliver the precision...
    MRG923G
    SKU:
    MRG923G
    Availability:
    Ships Same Business Day
    Weight:
    0.79 LBS
    MFG Part #:
    923G
    $101.95
    Qty in Cart: 0
    Quantity:
    Price:
    $101.95
    Subtotal:
  • Rocker Arm Nuts  MRG920G

    Mr. Gasket Rocker Arm Nuts 920G

    MR. GASKET

    $49.17
    Rocker arm nuts are critical fastening points in your valvetrain—loose or worn nuts will cause valve float, timing issues, and potential catastrophic engine damage. The Mr. Gasket 920G set delivers the precision fit and secure clamping force your stamped...
    MRG920G
    SKU:
    MRG920G
    Availability:
    Ships Same Business Day
    Weight:
    1.13 LBS
    MFG Part #:
    920G
    $49.17
    Qty in Cart: 0
    Quantity:
    Price:
    $49.17
    Subtotal:
  • Total: items /

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