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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On Sale
4.160 MLS Head Gasket .051 - SBC Brodix C5402-051
COMETIC
MSRP: $89.75Now: $84.00Was: $89.75A head gasket is the critical seal between your cylinder head and block—get it wrong, and you're risking catastrophic coolant mixing, compression loss, and engine damage. The Brodix C5402-051 MLS gasket delivers the precision fit and durability required...CAGC5402-051- SKU:
- CAGC5402-051
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- C5402-051
MSRP: $89.75Now: $84.00Was: $89.75 -
On Sale
4.160 MLS Head Gasket .040 - SBC Brodix C5402-040
COMETIC
MSRP: $85.48Now: $80.00Was: $85.48A quality head gasket is critical to maintaining compression, preventing coolant leakage, and ensuring reliable performance under sustained load. The Brodix C5402-040 is engineered with multi-layered steel construction to handle the demands of...CAGC5402-040- SKU:
- CAGC5402-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- C5402-040
MSRP: $85.48Now: $80.00Was: $85.48 -
On Sale
4.125 MLS Head Gasket .040 - SBC Brodix C5400-040
COMETIC
MSRP: $85.48Now: $80.00Was: $85.48A quality head gasket is the foundation of any reliable engine build—it's your seal against compression loss, coolant leaks, and catastrophic failure. The Brodix C5400-040 MLS gasket delivers the durability and precision fit your Small Block Chevy...CAGC5400-040- SKU:
- CAGC5400-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MFG Part #:
- C5400-040
MSRP: $85.48Now: $80.00Was: $85.48 -
On Sale
4.030 MLS Head Gasket .040 - SBC Brodix C5399-040
COMETIC
MSRP: $85.48Now: $80.00Was: $85.48A quality head gasket is fundamental to engine reliability and performance—it seals combustion pressure while managing thermal expansion across a wide operating range. The Brodix C5399-040 MLS design delivers consistent sealing performance in high-boost...CAGC5399-040- SKU:
- CAGC5399-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- C5399-040
MSRP: $85.48Now: $80.00Was: $85.48 -
On Sale
Rear Main Seal - SBC 2-Piece C5379
COMETIC
MSRP: $85.54Now: $80.00Was: $85.54A leaking rear main seal costs you oil, reliability, and peace of mind—especially when you're pushing your Small Block Chevy to its limits. This 2-piece design delivers superior sealing performance where it matters most, keeping your crankshaft protected...CAGC5379- SKU:
- CAGC5379
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- C5379
MSRP: $85.54Now: $80.00Was: $85.54 -
On Sale
3.830 MLS Head Gasket .040 - Ford 2.3L C5369-040
COMETIC
MSRP: $75.97Now: $71.00Was: $75.97A quality head gasket is non-negotiable for engine reliability, especially when you're running boost or pushing higher compression ratios on your Ford 2.3L. This MLS (Multi-Layered Steel) gasket delivers the seal integrity and thermal stability required...CAGC5369-040- SKU:
- CAGC5369-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- MFG Part #:
- C5369-040
MSRP: $75.97Now: $71.00Was: $75.97 -
On Sale
4.180 MLS LH Head Gasket .040 - SBF Yates C5364-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the foundation of cylinder sealing integrity—compromise here and you're risking compression loss, coolant leaks, and catastrophic engine failure. The Yates C5364-040 MLS (multi-layered steel) design delivers the durability and...CAGC5364-040- SKU:
- CAGC5364-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- MFG Part #:
- C5364-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.100 MLS Head Gasket .040 - SBF Yates LH C5359-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A head gasket failure can cost you a race—or worse, your engine. The Yates 4.100 MLS Head Gasket is engineered for Small Block Ford applications where precision sealing and thermal stability are non-negotiable. With multi-layered steel construction and a...CAGC5359-040- SKU:
- CAGC5359-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- C5359-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.200 MLS Head Gasket .040 - SBC SB2 C5324-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A proper head gasket is critical to maintaining compression integrity and preventing coolant leaks in high-performance engines. The 4.200 MLS design delivers superior sealing across thermal cycles, making it the reliable choice for rebuilt or modified...CAGC5324-040- SKU:
- CAGC5324-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- MFG Part #:
- C5324-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
SBC Water Pump Gasket C5299-018
COMETIC
MSRP: $3.39Now: $3.00Was: $3.39A compromised water pump gasket is a silent killer for Small Block Chevy engines—coolant leaks develop gradually, leading to overheating, thermal stress, and catastrophic engine damage if left unchecked. The SBC Water Pump Gasket C5299-018 delivers...CAGC5299-018- SKU:
- CAGC5299-018
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- C5299-018
MSRP: $3.39Now: $3.00Was: $3.39 -
On Sale
SBC Timing Cover Gasket .031 C5261-031
COMETIC
MSRP: $15.17Now: $14.00Was: $15.17A leaking timing cover gasket compromises engine sealing and invites oil seepage that degrades performance and cleanliness. This .031" composite gasket delivers reliable, long-term sealing for Small Block Chevy engines, ensuring your timing cover stays...CAGC5261-031- SKU:
- CAGC5261-031
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- C5261-031
MSRP: $15.17Now: $14.00Was: $15.17 -
On Sale
4.200 MLS Head Gasket .051 - SBC C5249-051
COMETIC
MSRP: $92.35Now: $87.00Was: $92.35A quality head gasket is the seal between your engine block and cylinder head—get it wrong, and you're looking at coolant leaks, compression loss, and catastrophic engine damage. The 4.200 MLS Head Gasket .051 delivers reliable sealing for Small Block...CAGC5249-051- SKU:
- CAGC5249-051
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- MFG Part #:
- C5249-051
MSRP: $92.35Now: $87.00Was: $92.35 -
On Sale
4.200 MLS Head Gasket .045 - SBC C5249-045
COMETIC
MSRP: $92.35Now: $87.00Was: $92.35A quality head gasket is the foundation of a reliable, high-compression engine—this MLS gasket delivers the sealing integrity and durability that serious SBC builders demand. The multi-layered steel construction resists blowout under sustained boost and...CAGC5249-045- SKU:
- CAGC5249-045
- Availability:
- Ships Same Business Day
- Weight:
- 0.78 LBS
- MFG Part #:
- C5249-045
MSRP: $92.35Now: $87.00Was: $92.35 -
On Sale
4.200 MLS Head Gasket .040 - SBC C5249-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the foundation of any reliable engine build—it's your seal against compression loss, oil leakage, and coolant crossover. This 4.200" MLS gasket is engineered for Small Block Chevy applications where precision and durability...CAGC5249-040- SKU:
- CAGC5249-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- MFG Part #:
- C5249-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.200 MLS Head Gasket .030 - SBC C5249-030
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is non-negotiable for engine reliability and performance—it's the critical seal that prevents combustion gases and coolant from leaking into your oil system. The 4.200 MLS Head Gasket delivers proven durability with multi-layered...CAGC5249-030- SKU:
- CAGC5249-030
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MFG Part #:
- C5249-030
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 .066- SBC C5248-066
COMETIC
MSRP: $121.04Now: $114.00Was: $121.04A properly sealed cylinder head is non-negotiable for engine reliability and performance. This MLS head gasket delivers the clamping force and thermal stability required to maintain compression and prevent coolant seepage across engine cycles. Choose the...CAGC5248-066- SKU:
- CAGC5248-066
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- C5248-066
MSRP: $121.04Now: $114.00Was: $121.04 -
On Sale
4.165 MLS Head Gasket .051 - SBC C5248-051
COMETIC
MSRP: $92.35Now: $87.00Was: $92.35A properly sealed cylinder head is non-negotiable for engine reliability and performance—combustion chamber pressure leaks translate directly to lost horsepower and potential engine damage. This MLS (Multi-Layered Steel) head gasket is engineered to...CAGC5248-051- SKU:
- CAGC5248-051
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- MFG Part #:
- C5248-051
MSRP: $92.35Now: $87.00Was: $92.35 -
On Sale
4.165 MLS Head Gasket .040 - SBC C5248-040
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is fundamental to engine reliability and performance—it's your seal against compression loss, coolant leaks, and catastrophic failure. The 4.165 MLS Head Gasket .040 delivers the multi-layered steel construction and precision bore...CAGC5248-040- SKU:
- CAGC5248-040
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- MFG Part #:
- C5248-040
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.165 MLS Head Gasket .030 - SBC C5248-030
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is fundamental to engine reliability—it seals combustion pressure and prevents coolant/oil crossover that compromises performance and longevity. The 4.165 MLS gasket delivers the precision fit and multi-layered construction that...CAGC5248-030- SKU:
- CAGC5248-030
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- C5248-030
MSRP: $87.95Now: $83.00Was: $87.95 -
On Sale
4.165 MLS Head Gasket .027 - SBC C5248-027
COMETIC
MSRP: $87.95Now: $83.00Was: $87.95A quality head gasket is the foundation of cylinder sealing integrity—without it, you're risking combustion blow-by, coolant leaks, and catastrophic engine failure. This 4.165 MLS gasket delivers the precision and durability required for high-revving...CAGC5248-027- SKU:
- CAGC5248-027
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- C5248-027
MSRP: $87.95Now: $83.00Was: $87.95
