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Engine Fastener Kits

Engine Fastener Kits

Engine Fastener Kits

Circle Track Engine Fastener Kits at JJ Motorsports

Engine fasteners are precision-crafted to securely connect vital engine parts, like camshafts and carburetors, for peak performance under pressure. These durable options are indispensable for maintaining a powerful and reliable engine setup alongside other durable fastener solutions.

Shop trusted brands like Allstar Performance, Wehrs Machine, MSD Ignition, Moroso, Chevrolet Performance, Dart, Comp Cams. Explore related categories such as Exhaust Manifold/Header Fastener Kits, Rocker Arm Fastener Kits, Valve Cover Fastener Kits, Cylinder Head Fastener Kits, Carburetor Fastener Kits.

Top Circle Track Engine 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
  • Hi-Tech Polyloc 7/16 For Alm-Ss-Pro-Mag Rockers COM4600-16

    Comp Cams Hi-Tech Polyloc 7/16 For Alm-Ss-Pro-Mag Rockers 4600-16

    COMP CAMS

    $65.95
    Hi-Tech Polyloc 7/16 For Alm-Ss-Pro-Mag RockersRocker Arm NutHi-Tech Polylock7/16-20 in ThreadSteelBlack OxideSet of 16
    COM4600-16
    SKU:
    COM4600-16
    Availability:
    Ships Same Business Day
    Weight:
    1.08 LBS
    MFG Part #:
    4600-16
    $65.95
    Qty in Cart: 0
    Quantity:
    Price:
    $65.95
    Subtotal:
  • Stud Girdle Adjusting Nuts COM4508-16

    Comp Cams Stud Girdle Adjusting Nuts 4508-16

    COMP CAMS

    $152.95
    Stud Girdle Adjusting NutsRocker Arm Nut7/16-20 in ThreadSteelBlack OxideStud GirdleSet of 16
    COM4508-16
    SKU:
    COM4508-16
    Availability:
    Ships Same Business Day
    Weight:
    2.36 LBS
    MFG Part #:
    4508-16
    $152.95
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • 3/8  Hi-Tech Rocker Stud 1.750 Upper Stud Length COM4505-16

    Comp Cams 3/8 Hi-Tech Rocker Stud 1.750 Upper Stud Length 4505-16

    COMP CAMS

    $89.95
    3/8 Hi-Tech Rocker Stud 1.750 Upper Stud LengthRocker Arm StudHi-Tech7/16-14 in Base Thread3/8-24 in Top Thread1.750 in Effective Stud LengthSteelBlack OxideUniversalSet of 16
    COM4505-16
    SKU:
    COM4505-16
    Availability:
    Ships Same Business Day
    Weight:
    1.69 LBS
    MFG Part #:
    4505-16
    $89.95
    Qty in Cart: 0
    Quantity:
    Price:
    $89.95
    Subtotal:
  • 3/8 Magnum Rocker Studs 1.750 Upper Stud Length COM4504-16

    Comp Cams 3/8 Magnum Rocker Studs 1.750 Upper Stud Length 4504-16

    COMP CAMS

    $81.95
    3/8 Magnum Rocker Studs 1.750 Upper Stud LengthRocker Arm StudMagnum5/16-18 in Base Thread3/8-24 in Top Thread1.750 in Effective Stud LengthSteelBlack OxideUniversalSet of 16
    COM4504-16
    SKU:
    COM4504-16
    Availability:
    Ships Same Business Day
    Weight:
    1.49 LBS
    MFG Part #:
    4504-16
    $81.95
    Qty in Cart: 0
    Quantity:
    Price:
    $81.95
    Subtotal:
  • 7/16 Magnum Rocker Studs 1.750 Upper Stud Length COM4503-16

    Comp Cams 7/16 Magnum Rocker Studs 1.750 Upper Stud Length 4503-16

    COMP CAMS

    $81.95
    7/16 Magnum Rocker Studs 1.750 Upper Stud LengthRocker Arm StudMagnum7/16-14 in Base Thread7/16-20 in Top Thread1.750 in Effective Stud LengthSteelBlack OxideUniversalSet of 16
    COM4503-16
    SKU:
    COM4503-16
    Availability:
    Ships Same Business Day
    Weight:
    2.01 LBS
    MFG Part #:
    4503-16
    $81.95
    Qty in Cart: 0
    Quantity:
    Price:
    $81.95
    Subtotal:
  • 3 3/4 in Carb Studs  CAN85-530

    Canton 3 3/4 in Carb Studs 85-530

    CANTON

    $29.00
    3 3/4 in Carb Studs Carburetor Stud5/16-18 in Threads3.750 in LongHex Head NutsStainlessNaturalSet of 4
    CAN85-530
    SKU:
    CAN85-530
    Availability:
    Ships Same Business Day
    Weight:
    0.41 LBS
    MFG Part #:
    85-530
    $29.00
    Qty in Cart: 0
    Quantity:
    Price:
    $29.00
    Subtotal:
  • 2.5in Carb Mount. Studs  CAN85-520

    Canton 2.5in Carb Mount. Studs 85-520

    CANTON

    $12.00
    2.5in Carb Mount. Studs Carburetor Stud5/16-18 in Threads2.500 in LongHex Head NutsStainlessNaturalSet of 4
    CAN85-520
    SKU:
    CAN85-520
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    MFG Part #:
    85-520
    $12.00
    Qty in Cart: 0
    Quantity:
    Price:
    $12.00
    Subtotal:
  • 2in x 5/16in-18 Carb Studs CAN85-510

    Canton 2in x 5/16in-18 Carb Studs 85-510

    CANTON

    $8.50
    2in x 5/16in-18 Carb StudsCarburetor Stud5/16-18 in Threads2.000 in LongHex Head NutsStainlessNaturalSet of 4
    CAN85-510
    SKU:
    CAN85-510
    Availability:
    Ships Same Business Day
    Weight:
    0.28 LBS
    MFG Part #:
    85-510
    $8.50
    Qty in Cart: 0
    Quantity:
    Price:
    $8.50
    Subtotal:
  • Mounting Kit For 20-932  CAN20-942

    Canton Mounting Kit For 20-932 20-942

    CANTON

    $109.00
    Mounting Kit For 20-932 Windage Tray StudSteelBlack OxideFord Cleveland / Modified / Small BlockKit
    CAN20-942
    SKU:
    CAN20-942
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    MFG Part #:
    20-942
    $109.00
    Qty in Cart: 0
    Quantity:
    Price:
    $109.00
    Subtotal:
  • Mounting Kit For 20-930  CAN20-940

    Canton Mounting Kit For 20-930 20-940

    CANTON

    $79.00
    Mounting Kit For 20-930 Windage Tray StudSteelBlack OxideSmall Block FordKit
    CAN20-940
    SKU:
    CAN20-940
    Availability:
    Ships Same Business Day
    Weight:
    1.07 LBS
    MFG Part #:
    20-940
    $79.00
    Qty in Cart: 0
    Quantity:
    Price:
    $79.00
    Subtotal:
  • SBC Mounting Studs for Pro Tray CAN20-921

    Canton SBC Mounting Studs for Pro Tray 20-921

    CANTON

    $92.00
    SBC Mounting Studs for Pro TrayWindage Tray StudSteelBlack OxidePro Plus TraySmall Block ChevyKit
    CAN20-921
    SKU:
    CAN20-921
    Availability:
    Ships Same Business Day
    Weight:
    1.24 LBS
    MFG Part #:
    20-921
    $92.00
    Qty in Cart: 0
    Quantity:
    Price:
    $92.00
    Subtotal:
  • SBC Windage Tray Mtng. Kit CAN20-920

    Canton SBC Windage Tray Mtng. Kit 20-920

    CANTON

    $69.00
    SBC Windage Tray Mtng. KitWindage Tray StudSteelBlack OxideScreen TraySmall Block ChevyKit
    CAN20-920
    SKU:
    CAN20-920
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    MFG Part #:
    20-920
    Qty in Cart: 0
    Quantity:
    Price:
    $69.00
    Subtotal:
  • Rod Bolt 7/16 x 1.450 ARP2000 CALBLTC145SBRODBOLT

    Rod Bolt 7/16 x 1.450 ARP2000 BLTC145 SB Rod bolt

    CALLIES

    $13.00
    Rod Bolt 7/16 x 1.450 ARP2000Connecting Rod Bolt7/16 in Bolt1.450 in Long12 Point HeadARP2000NaturalCallies Compstar RodsEach
    CALBLTC145SBRODBOLT
    SKU:
    CALBLTC145SBRODBOLT
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    MFG Part #:
    BLTC145 SB Rod bolt
    $13.00
    Qty in Cart: 0
    Quantity:
    Price:
    $13.00
    Subtotal:
  • SBF Complete Engine Fastener Kit 6pt. ARP554-9801

    ARP SBF Complete Engine Fastener Kit 6pt. 554-9801

    ARP

    $202.99
    SBF Complete Engine Fastener Kit 554-9801 Comprehensive engine and accessory fastener kit for optimal performance Features durable hex head design for easy installation and removal Constructed from high-strength chromoly for enhanced durability Finished...
    ARP554-9801
    SKU:
    ARP554-9801
    Availability:
    Ships Same Business Day
    Weight:
    5.30 LBS
    MFG Part #:
    554-9801
    Qty in Cart: 0
    Quantity:
    Price:
    $202.99
    Subtotal:
  • SBF Complete Engine Fastener Kit 12pt. ARP554-9703

    ARP SBF Complete Engine Fastener Kit 12pt. 554-9703

    ARP

    $103.99
    SBF Complete Engine Fastener Kit 554-9703 Comprehensive engine and accessory fastener kit Features durable 12-point head design for enhanced grip Constructed from high-strength chromoly material Finished with black oxide for corrosion...
    ARP554-9703
    SKU:
    ARP554-9703
    Availability:
    Ships Same Business Day
    Weight:
    3.73 LBS
    MFG Part #:
    554-9703
    Qty in Cart: 0
    Quantity:
    Price:
    $103.99
    Subtotal:
  • SBF S/S Complete Engine Fastener Kit 6pt. ARP554-9603

    ARP SBF S/S Complete Engine Fastener Kit 6pt. 554-9603

    ARP

    $192.99
    SBF S/S Complete Engine Fastener Kit 554-9603 Comprehensive engine and accessory fastener kit designed for durability Features hex head design for easy installation and removal Crafted from high-quality stainless steel for rust resistance Polished...
    ARP554-9603
    SKU:
    ARP554-9603
    Availability:
    Ships Same Business Day
    Weight:
    3.70 LBS
    MFG Part #:
    554-9603
    $192.99
    Qty in Cart: 0
    Quantity:
    Price:
    $192.99
    Subtotal:
  • SBF S/S Complete Engine Fastener Kit 6pt. ARP554-9601

    ARP SBF S/S Complete Engine Fastener Kit 6pt. 554-9601

    ARP

    $259.99
    SBF S/S Complete Engine Fastener Kit 554-9601 Comprehensive engine and accessory fastener kit designed for durability Features hex head design for easy installation and removal Manufactured from high-quality stainless steel for enhanced corrosion...
    ARP554-9601
    SKU:
    ARP554-9601
    Availability:
    Ships Same Business Day
    Weight:
    4.96 LBS
    MFG Part #:
    554-9601
    $259.99
    Qty in Cart: 0
    Quantity:
    Price:
    $259.99
    Subtotal:
  • SBF S/S Complete Engine Fastener Kit 12pt. ARP554-9503

    ARP SBF S/S Complete Engine Fastener Kit 12pt. 554-9503

    ARP

    $182.99
    SBF S/S Complete Engine Fastener Kit 554-9503 Comprehensive engine and accessory fastener kit designed for durability. Features a 12-point head for enhanced grip and torque precision. Constructed from high-quality stainless steel for maximum corrosion...
    ARP554-9503
    SKU:
    ARP554-9503
    Availability:
    Ships Same Business Day
    Weight:
    3.65 LBS
    MFG Part #:
    554-9503
    $182.99
    Qty in Cart: 0
    Quantity:
    Price:
    $182.99
    Subtotal:
  • SBF S/S Complete Engine Fastener Kit 12pt. ARP554-9501

    ARP SBF S/S Complete Engine Fastener Kit 12pt. 554-9501

    ARP

    $278.99
    SBF S/S Complete Engine Fastener Kit 554-9501 Comprehensive engine and accessory fastener kit Features a durable 12 point head design Constructed from high-quality stainless steel Polished finish for a sleek and professional look Specifically designed...
    ARP554-9501
    SKU:
    ARP554-9501
    Availability:
    Ships Same Business Day
    Weight:
    4.95 LBS
    MFG Part #:
    554-9501
    $278.99
    Qty in Cart: 0
    Quantity:
    Price:
    $278.99
    Subtotal:
  • SBC Complete Engine Fastener Kit 6pt. ARP534-9801

    ARP SBC Complete Engine Fastener Kit 6pt. 534-9801

    ARP

    $113.99
    SBC Complete Engine Fastener Kit 6pt.Engine and Accessory Fastener KitHex HeadChromolyBlack OxideSmall Block ChevyKit
    ARP534-9801
    SKU:
    ARP534-9801
    Availability:
    Ships Same Business Day
    Weight:
    3.26 LBS
    MFG Part #:
    534-9801
    $113.99
    Qty in Cart: 0
    Quantity:
    Price:
    $113.99
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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