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
- Allstar Performance Offset Stud 5/16-18 ALL26053 – Air Cleaner Stud, Offset, 5/16-18 in Thread, 6 in Long, Steel, Zinc Oxide, Each.
- Wehrs Machine Air Cleaner Nut 5/16in Thread WEHWM273125 – Air Cleaner Nut, Thumb Screw, 5/16-18 in Thread, O-Ring, Aluminum, Black Anodized, Each.
- Allstar Performance Rocker Arm Stud Kit SBC 8 pcs ALL90230 – Rocker Arm Stud Kit SBC 8 pcs, Rocker Arm Stud, 7/16-14 in Base Thread, 3/8-24 in Top Thread, 2.375 in Long, Steel, Small Block Chevy, Set of 8.
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
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3/8 Adjusting Nuts (4pk) PL038K
SHARP ROCKERS
$23.99Rocker 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 -
S/S Header Bolt Kit - 6pt. 3/8-16 x 1in (12) 8951
STAGE 8 FASTENERS
$135.84Header bolts are one of the most overlooked failure points in engine bay work—standard fasteners can loosen under thermal cycling and vibration, leading to exhaust leaks and lost performance. This stainless steel locking bolt kit eliminates that risk...SGE8951- SKU:
- SGE8951
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 8951
$135.84 -
Header Bolt Kit - 12pt. 3/8-16 x 1in (12) 8931
STAGE 8 FASTENERS
$74.49Header bolts are critical fastening points that experience extreme heat cycling and vibration in high-performance engines. Standard fasteners can loosen or fail under these conditions, leading to exhaust leaks and potential engine damage. This locking...SGE8931- SKU:
- SGE8931
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- MFG Part #:
- 8931
$74.49 -
Header Bolt Kit - 6pt. 3/8-16 x 1in (16) 8913A
STAGE 8 FASTENERS
$91.77Header bolts are one of the most overlooked wear points on a performance engine—and one of the cheapest ways to prevent catastrophic failures. Standard bolts can work loose under thermal cycling and vibration, leading to exhaust leaks, lost power, and...SGE8913A- SKU:
- SGE8913A
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- MFG Part #:
- 8913A
$91.77 -
Header Bolt Kit - 6pt. 3/8-16 x 3/4 (16) 8913
STAGE 8 FASTENERS
$82.79Header bolts endure extreme thermal cycling and vibration that standard fasteners simply can't handle—inadequate bolts lead to loose headers, exhaust leaks, and performance loss. This locking bolt kit eliminates guesswork with proper thread...SGE8913- SKU:
- SGE8913
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- MFG Part #:
- 8913
$82.79 -
Header Bolt Kit - 6pt. 3/8-16 x 1in (12) 8911A
STAGE 8 FASTENERS
$82.79Header bolts endure extreme thermal cycling and vibration that quickly loosen standard fasteners—this locking kit eliminates that risk before it becomes an engine-bay catastrophe. Whether you're running a stock rebuild or a high-RPM build, a secure...SGE8911A- SKU:
- SGE8911A
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 8911A
$82.79 -
Header Bolt Kit - 6pt. 3/8-16 x 3/4 (12) 8911
STAGE 8 FASTENERS
$74.49Header bolts endure extreme thermal cycles and vibration that standard fasteners simply can't handle—especially under boost or high RPM conditions. This locking bolt kit eliminates the risk of fastener creep, which can lead to exhaust leaks and lost...SGE8911- SKU:
- SGE8911
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- MFG Part #:
- 8911
$74.49 -
Header Bolt Kit - 6pt. 8mm-1.25 x 25mm (12) 8900
STAGE 8 FASTENERS
$74.35Stock header bolts can loosen under the thermal cycling and vibration that comes with high-performance driving, leading to exhaust leaks and potential header damage. These hardened steel locking bolts are engineered to stay tight, delivering consistent...SGE8900- SKU:
- SGE8900
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- MFG Part #:
- 8900
$74.35 -
Schoenfeld Tri-Y Collector Bolts (6 pack) 4000-6
SCHOENFELD
$9.49Tri-Y collector bolts are critical fasteners in high-temperature exhaust systems where standard bolts fail under thermal stress and vibration. Schoenfeld's locking design prevents fastener loosening, which protects your header integrity and eliminates...SCH4000-6- SKU:
- SCH4000-6
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MFG Part #:
- 4000-6
$9.49 -
Schoenfeld Header Bolt 3/8-16x3/4in 5/16 Head 16pk 3006-16
SCHOENFELD
$12.99Header bolts are a critical fastening point in any exhaust system—loose or failed bolts lead to exhaust leaks, dropped components, and lost performance. Schoenfeld's header bolts are engineered to withstand the thermal cycling and vibration that comes...SCH3006-16- SKU:
- SCH3006-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- MFG Part #:
- 3006-16
$12.99 -
Schoenfeld Header Bolt 3/8-16x3/4in 5/16 Head 14pk 3006-14
SCHOENFELD
$11.99Header bolts endure extreme thermal cycling and vibration that standard fasteners simply can't handle—choosing the right specification is critical to preventing leaks, exhaust manifold separation, and costly mid-race failures. Schoenfeld's purpose-built...SCH3006-14- SKU:
- SCH3006-14
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- MFG Part #:
- 3006-14
$11.99 -
Schoenfeld Header Bolt 3/8-16x3/4in 5/16 Head 12pk 3006-12
SCHOENFELD
$10.99Header bolts are a critical fastening component that directly impacts engine sealing and reliability under extreme heat and vibration. Schoenfeld's precision-engineered bolts deliver consistent clamping force to keep your headers secured, preventing...SCH3006-12- SKU:
- SCH3006-12
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MFG Part #:
- 3006-12
$10.99 -
Schoenfeld Header Bolt 10mm x 22mm Pinto 8pk 3005-8
SCHOENFELD
$9.99Header bolts are critical fastening points that directly impact exhaust scavenging and engine efficiency. Over time, stock bolts can loosen, crack, or corrode—compromising your header seal and power delivery. The Schoenfeld 10mm x 22mm header bolts are...SCH3005-8- SKU:
- SCH3005-8
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- 3005-8
$9.99 -
Rod Bolt 4AP1.602-2LU
SCAT ENTERPRISES
$22.99Connecting rod bolts are critical load-bearing fasteners that must withstand extreme pressures and cyclic stress in high-performance engines. ARP2000 material delivers superior tensile strength and fatigue resistance compared to OEM fasteners, making...SCA4AP1.602-2LU- SKU:
- SCA4AP1.602-2LU
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 4AP1.602-2LU
$22.99 -
Rod Bolt 4AP1.450-2LU
SCAT ENTERPRISES
$24.99Connecting rod bolts are critical to engine reliability—they're what keeps your rotating assembly intact under extreme loads and high RPM conditions. ARP2000 material delivers the tensile strength and fatigue resistance demanded by serious racers and...SCA4AP1.450-2LU- SKU:
- SCA4AP1.450-2LU
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 4AP1.450-2LU
$24.99 -
Rod Bolt 4AP1.400-1LU
SCAT ENTERPRISES
$22.99Connecting rod bolts are critical fasteners that secure your engine's rotating assembly under extreme stress and temperature cycles. ARP8740 material delivers superior tensile strength and fatigue resistance compared to OEM fasteners, ensuring reliable...SCA4AP1.400-1LU- SKU:
- SCA4AP1.400-1LU
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 4AP1.400-1LU
$22.99 -
3/8in x 1.600 ARP 2000 Rod Bolt 4AJ1.601-2SLU
SCAT ENTERPRISES
$25.99Connecting rod bolts are critical fasteners that anchor your rods to the crankshaft—any failure here means catastrophic engine damage. ARP 2000 bolts deliver superior clamp load and tensile strength compared to OEM fasteners, making them the choice for...SCA4AJ1.601-2SLU- SKU:
- SCA4AJ1.601-2SLU
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- 4AJ1.601-2SLU
$25.99 -
3/8in x 1.600 ARP 8740 Rod Bolt 4AJ1.601-1SLU
SCAT ENTERPRISES
$22.99Connecting rod bolts are critical stress-bearing components that demand absolute reliability under extreme combustion pressures and rotational forces. ARP 8740 bolts are purpose-built for high-performance engines where factory fasteners fall short,...SCA4AJ1.601-1SLU- SKU:
- SCA4AJ1.601-1SLU
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 4AJ1.601-1SLU
$22.99 -
Rod Bolt - 7/16 (1) BLT005
OLIVER RODS
$17.52Connecting rod bolts are critical fasteners that withstand extreme tensile and cyclic loading in high-RPM engines—failure here means catastrophic engine damage. ARP2000 material delivers superior clamping force and fatigue resistance compared to OEM...OLVBLT005- SKU:
- OLVBLT005
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- BLT005
$17.52 -
Rod Bolt BLT003
OLIVER RODS
$49.53Connecting rod bolts are critical to engine reliability—they secure the rod to the crankshaft under extreme combustion pressures and rotational forces. A quality rod bolt resists stretch, fatigue, and failure that can result in catastrophic engine damage...OLVBLT003- SKU:
- OLVBLT003
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- BLT003
$49.53Qty in Cart: 0Quantity:Price:$49.53Subtotal:
