Engines and Components
Circle Track Engine Parts: Camshafts, Blocks & Accessories for Late Models at JJ Motorsports
Power up your circle track engine with premium components from JJ Motorsports. Our selection includes serpentine drive kits, pulley systems, valve covers, engine blocks, camshafts, and more for maximum horsepower, durability, and performance in late models, modifieds, street stocks, and IMCA dirt racing. Compatible with Small Block Chevy (SBC), LS-series, and other racing engines, these high-quality parts ensure reliable operation under intense track conditions.
Shop trusted brands like Jones Racing, Allstar Performance, Chevrolet Performance, and Howards Racing Components. Explore related categories such as circle track drivetrain for transmission upgrades or circle track chassis components for frame enhancements.
Top Circle Track Engine Products
- Jones Racing Serpentine Drive Kit 1020-S – New serpentine drive kit designed for efficient accessory drive in racing engines, weighing 3.61 lbs for lightweight performance.
- Allstar Performance 1:1 Pulley Kit Head Mount PS ALL31082 – Billet aluminum polished pulley kit with 1:1 ratio and 2-groove V-belt, includes crank and water pump pulleys and belts for Small Block Chevy engines with head-mount power steering.
- Allstar Performance Valve Covers SBC Steel Black w/Tubes ALL26147 – Durable steel valve covers in black finish with tubes, designed for Small Block Chevy engines, weighing 5.95 lbs for reliable sealing and style.
- Chevrolet Performance LSX Cast Iron Block - 4.065 Bore Finished 19417352 – Bare cast iron engine block with 4.065 in bore, 9.240 deck height, 6-bolt mains and heads, orange powdercoat finish, compatible with Gen III/IV LS components, supporting up to 4.250 in stroke and 454 cu. in. displacement.
- SBC Solid Roller Cam 111013-10 – High-performance solid roller camshaft from Howards Racing Components for Small Block Chevy engines, weighing 8.70 lbs, ideal for aggressive racing applications.
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!
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Forged Piston SEAL2256F30
SEALED POWER
$422.99Building a high-compression small block that can handle sustained RPM and detonation? These forged Speed Pro pistons deliver the strength and reliability required for serious racing and forced-induction applications. With a robust forged construction and...SEAL2256F30- SKU:
- SEAL2256F30
- Availability:
- Ships Same Business Day
- Weight:
- 15.08 LBS
- MFG Part #:
- L2256F30
$422.99 -
Forged Piston L2166AF30
SEALED POWER
$532.99Forged pistons are the foundation of a reliable, high-revving engine—and the Speed Pro L2166AF30 delivers the strength and precision needed for sustained performance. Whether you're building a street engine or pushing limits on the track, these forged...SEAL2166AF30- SKU:
- SEAL2166AF30
- Availability:
- Ships Same Business Day
- Weight:
- 14.33 LBS
- MFG Part #:
- L2166AF30
$532.99 -
Forged Piston SEAL2165F40
SEALED POWER
$449.99Forged construction delivers the durability and reliability required for high-RPM racing and forced-induction applications, while the coated skirt reduces friction and extends engine life. Speed Pro's precision engineering ensures consistent ring seal...SEAL2165F40- SKU:
- SEAL2165F40
- Availability:
- Ships Same Business Day
- Weight:
- 14.98 LBS
- MFG Part #:
- L2165F40
$449.99 -
Forged Piston SEAL2165F30
SEALED POWER
$459.99A quality forged piston is fundamental to reliable high-RPM performance and engine longevity. Speed Pro's forged construction delivers superior strength under detonation and thermal stress compared to cast alternatives, making these pistons ideal for...SEAL2165F30- SKU:
- SEAL2165F30
- Availability:
- Ships Same Business Day
- Weight:
- 14.88 LBS
- MFG Part #:
- L2165F30
$459.99 -
Rod Bearing Set SEA8-7160CH10
SEALED POWER
$89.99Proper rod bearing clearance is critical to engine longevity and reliability—undersized bearings ensure optimal oil film thickness and reduce wear under sustained high-RPM operation. This complete eight-piece set eliminates guesswork during your Small...SEA8-7160CH10- SKU:
- SEA8-7160CH10
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MFG Part #:
- 87160CH10
$89.99 -
Rod Bearing Set 87160CH
SEALED POWER
$91.99A complete rod bearing set is essential for any small block Ford engine rebuild—whether you're freshening up worn internals or building a high-performance stroker. Speed Pro's 87160CH delivers the precision tolerances and durable construction required to...SEA8-7160CH- SKU:
- SEA8-7160CH
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MFG Part #:
- 87160CH
$91.99 -
Rod Bearing Set SEA8-7155CH10
SEALED POWER
$75.99A failing rod bearing set doesn't just compromise engine performance—it threatens catastrophic failure and costly rebuild work. The Speed Pro Rod Bearing Set SEA8-7155CH10 delivers precision-engineered bearings specifically sized for small block Ford...SEA8-7155CH10- SKU:
- SEA8-7155CH10
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- MFG Part #:
- 87155CH10
$75.99 -
Rod Bearing Set 87155CH
SEALED POWER
$88.99Connecting rod bearings are critical wear items that directly impact engine longevity and performance. Worn or inadequate bearings lead to increased friction, metal-to-metal contact, and catastrophic engine failure—especially under high RPM or boost...SEA8-7155CH- SKU:
- SEA8-7155CH
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MFG Part #:
- 87155CH
$88.99 -
Rod Bearing Set SEA8-7100CH20
SEALED POWER
$97.99Connecting rod bearings are critical to engine reliability—they handle extreme pressure and heat during every combustion cycle, and worn bearings can lead to catastrophic engine failure. This Speed Pro set delivers OEM-quality construction with precision...SEA8-7100CH20- SKU:
- SEA8-7100CH20
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 87100CH20
$97.99 -
Rod Bearing Set SEA8-7100CH1X
SEALED POWER
$82.99A quality rod bearing set is fundamental to engine reliability and longevity, especially in high-RPM or boosted applications where bearing wear accelerates quickly. Speed Pro's chamfered design improves oil flow and reduces edge stress, critical factors...SEA8-7100CH1X- SKU:
- SEA8-7100CH1X
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- MFG Part #:
- 87100CH1X
$82.99 -
Rod Bearing Set SEA8-7100CH10
SEALED POWER
$86.99A quality connecting rod bearing set is critical to engine reliability and longevity, especially in high-RPM or forced-induction applications where bearing wear accelerates rapidly. These Speed Pro bearings are engineered to precise tolerances and...SEA8-7100CH10- SKU:
- SEA8-7100CH10
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MFG Part #:
- 87100CH10
$86.99 -
Rod Bearing Set SEA8-7100CH1
SEALED POWER
$84.99Connecting rod bearings are critical wear items that directly impact engine reliability and longevity—especially under sustained high RPM operation. This Speed Pro set delivers OEM-quality construction with precision tolerances, ensuring proper oil film...SEA8-7100CH1- SKU:
- SEA8-7100CH1
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- MFG Part #:
- 87100CH1
$84.99 -
Rod Bearing Set 87100CH
SEALED POWER
$71.99Connecting rod bearings are the critical interface between your crankshaft and rods—they need to handle extreme pressures and temperatures without compromise. Speed Pro's 87100CH set delivers proven durability and precision fit that serious small block...SEA8-7100CH- SKU:
- SEA8-7100CH
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MFG Part #:
- 87100CH
$71.99 -
Main Bearing Set SEA140M1X
SEALED POWER
$71.99Small block Chevy engines demand precision-engineered internal components to handle the stresses of high RPM and boost conditions. The SEA140M1X Main Bearing Set delivers the tight tolerances and robust construction necessary for reliable power delivery,...SEA140M1X- SKU:
- SEA140M1X
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- MFG Part #:
- 140M1X
$71.99 -
Main Bearing Set 140M
SEALED POWER
$77.99Main bearing wear is one of the fastest ways to compromise engine reliability and performance—especially under high RPM or boost conditions. The Speed Pro 140M Main Bearing Set delivers the precision clearances and material durability your Small Block...SEA140M- SKU:
- SEA140M
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- MFG Part #:
- 140M
$77.99 -
Main Bearing Set SEA139M11
SEALED POWER
$79.99A quality main bearing set is foundational to engine reliability and longevity, especially in high-performance or rebuilt applications. Speed Pro's main bearing kit ensures proper oil clearance and load distribution across critical engine journals,...SEA139M11- SKU:
- SEA139M11
- Availability:
- Ships Same Business Day
- Weight:
- 1.32 LBS
- MFG Part #:
- 139M11
$79.99 -
Main Bearing Set SEA139M10
SEALED POWER
$77.99A worn or damaged main bearing set directly compromises engine reliability and power delivery—especially critical if you're running boosted power or high RPM applications. This Speed Pro kit delivers OEM-quality bearing surfaces with precise tolerances,...SEA139M10- SKU:
- SEA139M10
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
- MFG Part #:
- 139M10
$77.99 -
Main Bearing Set SEA139M1
SEALED POWER
$70.99Main bearing wear is one of the fastest ways to lose engine reliability and power output under load. The SEA139M1 delivers precision-engineered construction that maintains critical clearances and oil film integrity, whether you're pushing your small...SEA139M1- SKU:
- SEA139M1
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MFG Part #:
- 139M1
$70.99 -
Main Bearing Set 139M
SEALED POWER
$77.99Main bearing wear is one of the most critical failure points in high-performance engines—inadequate bearing support under load leads to crankshaft deflection, increased friction, and catastrophic engine damage. The Main Bearing Set 139M delivers...SEA139M- SKU:
- SEA139M
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
- MFG Part #:
- 139M
$77.99 -
Main Bearing Set SEA130M1X
SEALED POWER
$89.99A quality main bearing set is foundational to engine longevity and reliability—especially in high-rpm applications where journal wear accelerates quickly. This Speed Pro kit delivers OEM-grade precision with factory-spec tolerances, ensuring proper oil...SEA130M1X- SKU:
- SEA130M1X
- Availability:
- Ships Same Business Day
- Weight:
- 1.47 LBS
- MFG Part #:
- 130M1X
$89.99
