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
-
On Sale
Rear Main Seal - SBC 400 Align Hone & Alm Block C5681
COMETIC
MSRP: $30.80Now: $29.00Was: $30.80A leaking rear main seal can quickly turn a precision build into an oil-weeping disaster, compromising both performance and engine longevity. This two-piece rubber seal is engineered for SBC 400 blocks with align-hone and aluminum construction,...CAGC5681- SKU:
- CAGC5681
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- C5681
MSRP: $30.80Now: $29.00Was: $30.80 -
On Sale
Rear Main Seal - SBC 2-Piece C5680
COMETIC
MSRP: $26.78Now: $25.00Was: $26.78Oil seepage at the crankshaft is one of the most common—and preventable—failures in Small Block Chevy engines. A failing rear main seal compromises engine integrity, causes messy leaks, and accelerates wear on other components. The C5680 two-piece design...CAGC5680- SKU:
- CAGC5680
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- C5680
MSRP: $26.78Now: $25.00Was: $26.78 -
On Sale
Timing Cover Gasket Kit SBF 351W C5660-020
COMETIC
MSRP: $12.66Now: $12.00Was: $12.66A failing timing cover gasket compromises your engine's integrity by allowing oil seepage and inviting contaminants into critical engine timing components. This composite gasket kit restores a proper seal, preventing leaks that can damage your engine and...CAGC5660-020- SKU:
- CAGC5660-020
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- MFG Part #:
- C5660-020
MSRP: $12.66Now: $12.00Was: $12.66 -
On Sale
SBC Timing Cover Seal & Gasket Kit C5530
COMETIC
MSRP: $21.40Now: $20.00Was: $21.40Timing cover leaks are one of the most common sources of oil seepage on Small Block Chevy engines—and they're easy to ignore until they become a bigger problem. This comprehensive gasket and seal kit eliminates guesswork by providing all the components...CAGC5530- SKU:
- CAGC5530
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- C5530
MSRP: $21.40Now: $20.00Was: $21.40Qty in Cart: 0Quantity:Price:MSRP: $21.40Now: $20.00Was: $21.40Subtotal: -
On Sale
4.200 MLS Head Gasket .040 - SBF C5517-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the critical seal between your cylinder head and block—compromise here and you're risking coolant leaks, combustion blowby, and catastrophic engine failure. This 4.200" MLS gasket is engineered for Small Block Ford applications...CAGC5517-040- SKU:
- CAGC5517-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- C5517-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.155 MLS Head Gasket .040 - SBF C5515-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A head gasket is your engine's first line of defense against combustion blow-by and coolant leakage—and this 4.155 MLS gasket delivers the sealing reliability that small block Ford racers and high-performance builders demand. The 0.040" compression...CAGC5515-040- SKU:
- CAGC5515-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- C5515-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.100 MLS Head Gasket .040 - SBF C5514-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is critical to maintaining cylinder pressure and preventing coolant leaks in high-performance engines. This MLS gasket delivers superior sealing integrity across multiple combustion cycles, making it essential for both street and...CAGC5514-040- SKU:
- CAGC5514-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MFG Part #:
- C5514-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.080 MLS Head Gasket .040 - SBF C5513-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is non-negotiable for any Small Block Ford build—it's the critical seal between your cylinder head and block that prevents combustion leakage and coolant seepage under boost or sustained high RPM. This 4.080 MLS gasket delivers the...CAGC5513-040- SKU:
- CAGC5513-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MFG Part #:
- C5513-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.030 MLS Head Gasket .040 - SBF C5511-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the foundation of a reliable engine seal—without proper compression containment, you're risking coolant leaks, oil weeping, and catastrophic combustion loss. This 4.030 MLS head gasket delivers the precision fit and durability...CAGC5511-040- SKU:
- CAGC5511-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- MFG Part #:
- C5511-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.195 MLS Head Gasket .051 - SBF SVO C5509-051
COMETIC
MSRP: $92.35Now: $87.00Was: $92.35A quality head gasket is the foundation of cylinder sealing—it's what prevents combustion gases and coolant from mixing, and it directly impacts your engine's reliability under boost or high RPM. This 4.195" MLS gasket from SVO is engineered for Small...CAGC5509-051- SKU:
- CAGC5509-051
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- MFG Part #:
- C5509-051
MSRP: $92.35Now: $87.00Was: $92.35 -
On Sale
4.200 MLS Head Gasket .040 - SBF SVO C5485-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is non-negotiable for engine reliability and peak combustion efficiency. This MLS gasket delivers consistent sealing under high boost, high RPM, and extreme cylinder pressures—critical for both street and competition builds. If...CAGC5485-040- SKU:
- CAGC5485-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
- MFG Part #:
- C5485-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.155 MLS Head Gasket .040 - SBF SVO C5483-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is non-negotiable for any serious Small Block Ford engine build—it's the critical seal that maintains compression and prevents coolant cross-contamination under boost or high cylinder pressures. The 4.155 MLS design delivers...CAGC5483-040- SKU:
- CAGC5483-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MFG Part #:
- C5483-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.100 MLS Head Gasket .040 - SBF SVO C5481-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A head gasket is your engine's critical seal between the cylinder head and block—get it wrong, and you're looking at coolant leaks, combustion blow-by, and catastrophic engine failure. This 4.100" MLS gasket delivers proven reliability for Small Block...CAGC5481-040- SKU:
- CAGC5481-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- MFG Part #:
- C5481-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.080 MLS Head Gasket .040 - SBF SVO C5480-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is critical to maintaining compression integrity and preventing coolant or oil seepage in high-demand engine applications. This 4.080 MLS gasket is engineered for Small Block Ford engines running elevated boost or sustained high...CAGC5480-040- SKU:
- CAGC5480-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MFG Part #:
- C5480-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.030 MLS Head Gasket .040 - SBF SVO C5478-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the foundation of cylinder sealing integrity—any compromise here translates directly to compression loss, coolant leakage, and catastrophic engine failure. The 4.030 MLS Head Gasket from SVO delivers multi-layered steel...CAGC5478-040- SKU:
- CAGC5478-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- MFG Part #:
- C5478-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.080 MLS Head Gasket .030 - SBC Vortec C5474-030
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A properly sealed cylinder head is non-negotiable for any high-performance small block Chevy build. This 4.080 MLS head gasket delivers the compression sealing reliability required for forced induction, high-boost applications, and sustained high-RPM...CAGC5474-030- SKU:
- CAGC5474-030
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- C5474-030
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.190 MLS Head Gasket .040 - SBC SB2 C5472-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A head gasket is your engine's first line of defense against combustion pressures and coolant intrusion—get it wrong, and you're looking at catastrophic failure. This 4.190 MLS gasket is engineered for SB2 small-block Chevy applications where precision...CAGC5472-040- SKU:
- CAGC5472-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MFG Part #:
- C5472-040
MSRP: $87.95Now: $83.00Was: $87.95Qty in Cart: 0Quantity:Price:MSRP: $87.95Now: $83.00Was: $87.95Subtotal: -
On Sale
4.165 MLS Head Gasket .040 - SBC Vortec C5410-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the foundation of any reliable engine—seal failure leads to coolant loss, oil contamination, and catastrophic engine damage. This 4.165" MLS gasket is engineered specifically for SBC Vortec platforms, delivering the compression...CAGC5410-040- SKU:
- CAGC5410-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MFG Part #:
- C5410-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.200 MLS Head Gasket .051 - SBC Brodix C5403-051
COMETIC
MSRP: $89.75Now: $84.00Was: $89.75A quality head gasket is non-negotiable for engine reliability, and this 4.200" MLS gasket delivers the compression sealing and durability your SBC demands. Brodix's multi-layered steel construction resists blow-out under high boost and sustained RPM,...CAGC5403-051- SKU:
- CAGC5403-051
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- MFG Part #:
- C5403-051
MSRP: $89.75Now: $84.00Was: $89.75 -
On Sale
4.200 MLS Head Gasket .040 - SBC Brodix C5403-040
COMETIC
MSRP: $85.48Now: $80.00Was: $85.48A head gasket is the critical seal between your cylinder head and block—fail here, and you're looking at catastrophic coolant loss, compression leakage, and engine damage. The Brodix C5403-040 MLS gasket is engineered for high-compression Small Block...CAGC5403-040- SKU:
- CAGC5403-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- C5403-040
MSRP: $85.48Now: $80.00Was: $85.48
