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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Mr. Gasket Carburetor Studs 1-3/8in 59
MR. GASKET
$7.71A carburetor requires a rock-solid mechanical connection—any looseness or vibration introduces fuel delivery inconsistencies and performance loss. Mr. Gasket's carburetor studs provide the precision fastening needed to keep your carb locked in place...MRG59- SKU:
- MRG59
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MFG Part #:
- 59
$7.71 -
Mr. Gasket 3/8-16 x 3/4 Header Bolt Set (12) Combo Hex & Soc 3420G
MR. GASKET
$11.43Header bolts endure extreme temperatures and vibration cycles that quickly strip standard fasteners—this set delivers the reliability you need to keep your headers sealed and secure. Mr. Gasket's black oxide steel construction resists corrosion while the...MRG3420G- SKU:
- MRG3420G
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MFG Part #:
- 3420G
$11.43 -
Mr. Gasket Header Bolts- 3/8in Head 3409
MR. GASKET
$31.24Header bolt failures are a common cause of exhaust leaks and manifold separation, particularly in high-heat applications where thermal cycling demands reliable fastening. Mr. Gasket's 3/8" header bolts are engineered to withstand the extreme temperature...MRG3409- SKU:
- MRG3409
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- 3409
$31.24 -
Mr. Gasket Oil Pan Plug 15
MR. GASKET
$18.04A quality oil drain plug might seem like a small detail, but it's critical for maintaining proper engine health and preventing costly leaks. The Mr. Gasket Oil Pan Plug 15 combines magnetic functionality with durable steel construction and a nylon washer...MRG15- SKU:
- MRG15
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 15
$18.04 -
Moroso Spark Plug Index Washers Flat Seat 71910
MOROSO
$33.99Spark plug indexing is critical for optimizing ignition timing and combustion efficiency in high-performance engines. Moroso's flat-seat index washers allow precise electrode positioning, ensuring consistent spark plug gap geometry across all cylinders...MOR71910- SKU:
- MOR71910
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- 71910
$33.99 -
Moroso Spark Plug Index Washers Tapered Seat 71900
MOROSO
$34.99Spark plug indexing directly impacts ignition timing precision and combustion efficiency—even small gaps or misalignment can hurt performance. Moroso's tapered seat washers ensure consistent, repeatable spark plug seating across multiple cylinder heads...MOR71900- SKU:
- MOR71900
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- 71900
$34.99 -
Moroso Bullet Nose V/C Stud Kit 68830
MOROSO
$38.99Valve cover studs are critical fasteners that secure your valve cover under pressure and vibration—a failure here means oil leaks and potential engine bay damage. The Moroso Bullet Nose V/C Stud Kit delivers precision-engineered fasteners designed to...MOR68830- SKU:
- MOR68830
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MFG Part #:
- 68830
$38.99 -
Moroso Valve Cover Fasteners 68820
MOROSO
$19.99Valve cover fasteners are a critical foundation for any engine assembly—loose or corroded studs lead to oil leaks, vacuum leaks, and catastrophic engine damage. The Moroso 68820 fastener set delivers reliable clamping force with chrome-plated steel...MOR68820- SKU:
- MOR68820
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MFG Part #:
- 68820
$19.99 -
Moroso Squirter Screw-High Flow Gasoline MOR65442
MOROSO
$27.99If you're running a Holley carburetor and need precision fuel metering adjustments, the Moroso Squirter Screw delivers the high-flow capacity required for aggressive fuel delivery without compromising tuning accuracy. The enlarged, repositioned slot...MOR65442- SKU:
- MOR65442
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 65442
$27.99 -
Moroso Fuel Bowl Screws MOR65414
MOROSO
$17.99Fuel bowl security isn't something to compromise on—a loose screw can mean fuel leaks, performance issues, or worse. These Moroso fuel bowl screws are engineered to Holley carburetor specifications, ensuring a tight, reliable seal that holds up under the...MOR65414- SKU:
- MOR65414
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- 65414
$17.99 -
Moroso Balancer Bolt 38770
MOROSO
$19.99The harmonic balancer bolt is a critical fastener that directly affects crankshaft stability and engine longevity. A worn or substandard bolt can lead to balancer slippage, vibration, and potential catastrophic engine damage. This Moroso Grade 8 bolt...MOR38770- SKU:
- MOR38770
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- 38770
$19.99 -
Moroso Chevy Timing Cover Bolts 38590
MOROSO
$13.99Timing cover bolts endure constant thermal cycling and vibration—factory fasteners often loosen or corrode, leading to oil leaks and engine bay mess. Moroso's Grade 8 steel bolts with integral serrated washers lock in place and resist degradation,...MOR38590- SKU:
- MOR38590
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- 38590
$13.99 -
Moroso SBC Oil Pan Bolt Kit 38555
MOROSO
$22.99A proper fastener kit is the foundation of a leak-free oil pan installation, and Moroso's SBC bolt kit eliminates guesswork by providing the exact hardware your Small Block Chevy engine demands. Factory bolts often corrode or strip, compromising your...MOR38555- SKU:
- MOR38555
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- 38555
$22.99 -
Moroso Sb Chevy Oil Pan Bolts 38550
MOROSO
$19.99A quality oil pan bolt kit is often overlooked, but it's critical to preventing leaks that can compromise engine protection and performance. Moroso's Grade 8 steel fasteners with self-locking design eliminate the need for constant re-torquing, keeping...MOR38550- SKU:
- MOR38550
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MFG Part #:
- 38550
$19.99 -
Moroso Sb Chevy Intake Bolts 38400
MOROSO
$31.99Stock intake bolts are a common failure point under high-temperature and high-pressure conditions, leading to vacuum leaks and performance loss. The Moroso SB Chevy Intake Bolts deliver the clamping force and reliability you need to keep your manifold...MOR38400- SKU:
- MOR38400
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- MFG Part #:
- 38400
$31.99 -
Moroso Chevy V8 Oil Pump Stud 3.1875in Long- Hex Nut 38150
MOROSO
$19.99The oil pump pickup stud is a critical fastener that secures your oil pump assembly and directly impacts oil delivery under high-pressure racing conditions. A worn or substandard stud can lead to oil starvation, bearing damage, and catastrophic engine...MOR38150- SKU:
- MOR38150
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- 38150
$19.99 -
Moroso 3-1/2 Carb Studs 37961
MOROSO
$22.99A quality carburetor stud kit is essential for securing your carb to the manifold without risk of vibration-induced loosening or fuel system compromise. Moroso's 3-1/2 studs are precision-engineered with dual thread options to accommodate various...MOR37961- SKU:
- MOR37961
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- 37961
$22.99 -
Moroso 2-1/2in Carb Studs 37960
MOROSO
$19.99Carburetor mounting integrity directly impacts fuel atomization and engine response—loose or corroded studs compromise both. The Moroso 2-1/2in Carb Studs deliver reliable, corrosion-resistant fastening with precision threading to secure your carb...MOR37960- SKU:
- MOR37960
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MFG Part #:
- 37960
$19.99 -
Moroso Carburetor Stud Kit - 2in. 37955
MOROSO
$22.99A loose or corroded carburetor mounting stud can lead to fuel leaks, inconsistent idle quality, and poor throttle response—issues that compound under racing conditions. The Moroso Carburetor Stud Kit provides precision-engineered studs with dual-thread...MOR37955- SKU:
- MOR37955
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- 37955
$22.99 -
Moroso 1-3/8in Carb Studs 37950
MOROSO
$18.99Carburetor stud failure is a common source of intake manifold leaks and vacuum issues that compromise tuning precision and engine performance. Moroso's 1-3/8in carb studs provide the secure, corrosion-resistant fastening your fuel delivery system...MOR37950- SKU:
- MOR37950
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MFG Part #:
- 37950
$18.99
