Gaskets and Seals
Circle Track Gaskets & Seals for SBC Engines & Rear Hubs at JJ Motorsports
Maintain peak performance and prevent leaks in your circle track racer with premium gaskets and seals from JJ Motorsports. Our selection includes head gaskets, valve cover gaskets, water pump gaskets, hub seals, and more, designed for late models, modifieds, street stocks, and IMCA dirt racing. Compatible with Small Block Chevy (SBC) engines and various rear hubs, these durable components ensure reliable sealing under high-pressure racing conditions.
Shop trusted brands like Fel-Pro and Moroso. Explore related categories such as circle track engines and components for power upgrades or circle track drivetrain for transmission enhancements.
Top Circle Track Gaskets and Seals Products
- Fel-Pro SBC Head Gasket Cast or Aluminum 1003 – Cylinder head gasket with 4.166 in bore and 0.041 in compression thickness, made of steel core laminate with KEVLAR fiber for strength; withstands up to 1,000 hp and 1500-3000 psi, anti-stick coating for perfect seal.
- Moroso Sb Chevy V. C. Gaskets 93020 – New valve cover gaskets designed for Small Block Chevy engines, ensuring reliable sealing and durability in racing applications.
- Fel-Pro Sbc Water Pump To Block 5152 – Gasket for Small Block Chevrolet water pump to block applications, providing a secure seal to prevent coolant leaks.
- 5 X 5 Rear Hub Bearing Seal 2-1/2in Pin Rear GN Grand National 2.5in Pin PAIR – Hub bearing seals for dirt race cars, made of rubber/steel; compatible with AFCO, Allstar, SCP, Winters 2-1/2 in Pin 5x5 hubs; sold as a pair.
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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3.910 MLS Head Gasket .051 - GM LS1 C5475-051
COMETIC
$87.95A properly sealed combustion chamber is non-negotiable for LS1 performance. This MLS head gasket delivers the compression integrity your engine needs to hold boost, prevent coolant bypass, and maintain consistent cylinder pressures under sustained...CAGC5475-051- SKU:
- CAGC5475-051
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$87.95 -
3.910 MLS Head Gasket .040 - GM LS1 C5475-040
COMETIC
$87.95A cylinder head gasket is your engine's critical seal between the block and head—any compromise in material quality or thickness directly impacts compression integrity, combustion efficiency, and long-term reliability. This MLS (Multi-Layer Steel) gasket...CAGC5475-040- SKU:
- CAGC5475-040
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$87.95 -
4.160 MLS Head Gasket .051 - GM LS1 C5318-051
COMETIC
$87.95A proper head gasket is non-negotiable for LS engine reliability and peak performance. This MLS gasket delivers consistent cylinder sealing across boost cycles and sustained high RPM, preventing compression loss and coolant intrusion that compromise...CAGC5318-051- SKU:
- CAGC5318-051
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$87.95 -
4.160 MLS Head Gasket .040 - GM LS1 C5318-040
COMETIC
$87.95A head gasket failure can compromise combustion chamber sealing, destroy performance gains, and lead to catastrophic engine damage. This 4.160 MLS head gasket delivers reliable compression sealing and thermal stability for LS1 applications, whether...CAGC5318-040- SKU:
- CAGC5318-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$87.95 -
4.130 MLS Head Gasket .051 - GM LS1 C5317-051
COMETIC
$87.95A head gasket is the critical seal between your cylinder head and block—and choosing the right thickness directly impacts compression ratio, ring seal quality, and overall engine reliability. This 4.130 MLS gasket is engineered for LS1 applications where...CAGC5317-051- SKU:
- CAGC5317-051
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$87.95Qty in Cart: 0Quantity:Price:$87.95Subtotal: -
4.130 MLS Head Gasket .040 - GM LS1 C5317-040
COMETIC
$87.95A head gasket is the critical seal between your cylinder head and engine block—it must withstand extreme combustion pressures and temperature cycling without failure. This 4.130 MLS gasket is engineered specifically for GM LS1 applications with a .040"...CAGC5317-040- SKU:
- CAGC5317-040
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$87.95 -
Timing Cover Gasket SBF 302/351W .031 Thick C5276-031
COMETIC
$9.26A failing timing cover gasket is one of the easiest ways to develop an oil leak that slowly degrades your engine's performance and cleanliness. This composite gasket is engineered to .031" thickness for a reliable seal on Small Block Ford 302 and 351W...CAGC5276-031- SKU:
- CAGC5276-031
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
$9.26 -
Carb Gasket - Holley 4150 Open Plenum C5263FC
COMETIC
$9.99A worn or damaged carburetor gasket compromises fuel atomization and creates vacuum leaks that rob your engine of performance and reliability. This OEM-equivalent Holley 4150 gasket seals the open plenum to the carburetor body, preventing fuel seepage...CAGC5263FC- SKU:
- CAGC5263FC
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
$9.99 -
4.200 MLS Head Gasket .036 - SBC C5249-036
COMETIC
$87.95A quality head gasket is critical to maintaining cylinder sealing and preventing coolant/oil leakage in high-performance applications. This 4.200" MLS gasket delivers reliable compression retention across sustained RPM ranges, making it essential for...CAGC5249-036- SKU:
- CAGC5249-036
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$87.95 -
4.200 MLS Head Gasket .027 - SBC C5249-027
COMETIC
$87.95A quality head gasket is fundamental to maintaining compression and preventing coolant or oil seepage in your Small Block Chevy engine. This 4.200" MLS gasket delivers reliable sealing under high-boost conditions and repeated thermal cycling, making it...CAGC5249-027- SKU:
- CAGC5249-027
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$87.95 -
4.165 MLS Head Gasket .045 - SBC C5248-045
COMETIC
$92.35A quality head gasket is the foundation of a reliable, high-compression engine—without proper sealing, you're risking coolant leaks, combustion blow-by, and catastrophic engine failure. This 4.165" MLS gasket is engineered for Small Block Chevy...CAGC5248-045- SKU:
- CAGC5248-045
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$92.35 -
4.125 MLS Head Gasket .051 - SBC C5247-051
COMETIC
$92.35A quality head gasket is the foundation of reliable power output and engine longevity. This MLS (Multi-Layer Steel) gasket delivers the compression sealing and durability demanded by small block Chevy builds—whether you're running stock power or serious...CAGC5247-051- SKU:
- CAGC5247-051
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$92.35 -
4.100 MLS Head Gasket .051 - SBC C5246-051
COMETIC
$92.35A quality head gasket is critical to maintaining cylinder pressure, preventing coolant and oil leakage, and ensuring reliable performance across engine rebuilds and modifications. This 4.100 MLS gasket is engineered for Small Block Chevy applications...CAGC5246-051- SKU:
- CAGC5246-051
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$92.35 -
4.100 MLS Head Gasket .045 - SBC C5246-045
COMETIC
$92.35A quality head gasket is the foundation of any reliable Small Block Chevy build—seal integrity directly impacts compression, power delivery, and engine longevity. The 4.100 MLS design uses multi-layer steel construction to handle sustained boost and high...CAGC5246-045- SKU:
- CAGC5246-045
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$92.35 -
Oil Pan Gasket Set SBC Iron Eagle/GM Rocket Blk C5104-094
COMETIC
$42.93A compromised oil pan gasket is a silent killer of engine reliability—it allows oil seepage that can leave your engine starved of lubrication and your engine bay covered in mess. This fiber gasket set seals the critical interface between your oil pan and...CAGC5104-094- SKU:
- CAGC5104-094
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
$42.93 -
Water Pump Gasket SBC .031 Thick (1pk) C15618
COMETIC
$3.38A failing water pump gasket compromises your cooling system's integrity, risking catastrophic overheating and engine damage. This OEM-spec fiber gasket seals the critical junction between your pump and block, ensuring reliable coolant circulation and...CAGC15618- SKU:
- CAGC15618
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
$3.38Qty in Cart: 0Quantity:Price:$3.38Subtotal: -
Fuel Pump Plate Gasket 4-Bolt Chevy/Ford/Dodge C15617
COMETIC
$1.84A compromised fuel pump gasket is an open invitation for leaks, vapor loss, and inconsistent fuel delivery—three things that have no place in a high-performance engine. This OEM-spec fiber gasket seals the critical interface between your fuel pump and...CAGC15617- SKU:
- CAGC15617
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$1.84Qty in Cart: 0Quantity:Price:$1.84Subtotal: -
Timing Cover Gasket Set SBC C15615
COMETIC
$5.97A leaking timing cover gasket will quickly compromise your engine's oil integrity and create a messy, unreliable setup that undermines all your other performance investments. This complete gasket set seals the critical interface between your timing cover...CAGC15615- SKU:
- CAGC15615
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$5.97 -
Intake Gasket Set SBC 1.310 x 2.21 Rect. Port C15614-059
COMETIC
$30.35A compromised intake manifold gasket is a silent performance killer—fuel mixture leaks, uneven cylinder fill, and heat loss can all tank your dyno numbers. This OEM-spec gasket set ensures perfect port-to-manifold sealing on your Small Block Chevy,...CAGC15614-059- SKU:
- CAGC15614-059
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
$30.35 -
SBC Valve Cover Gasket Set C15613-188
COMETIC
$50.65A leaking valve cover gasket compromises engine performance and invites oil seepage that can damage surrounding components. This OEM-quality gasket set delivers a reliable seal for Small Block Chevy engines, eliminating guesswork during your next rebuild...CAGC15613-188- SKU:
- CAGC15613-188
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
$50.65
