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Engines and Components

Engines and Components

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

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
  • Rod Bearing Set  SEA8-7160CH10

    Rod Bearing Set SEA8-7160CH10

    SEALED POWER

    $96.99
    Proper 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
    $96.99
    Qty in Cart: 0
    Quantity:
    Price:
    $96.99
    Subtotal:
  • Rod Bearing Set  SEA8-7160CH

    Rod Bearing Set 87160CH

    SEALED POWER

    $101.99
    A 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
    $101.99
    Qty in Cart: 0
    Quantity:
    Price:
    $101.99
    Subtotal:
  • Rod Bearing Set  SEA8-7155CH10

    Rod Bearing Set SEA8-7155CH10

    SEALED POWER

    $82.99
    A 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
    $82.99
    Qty in Cart: 0
    Quantity:
    Price:
    $82.99
    Subtotal:
  • Rod Bearing Set  SEA8-7155CH

    Rod Bearing Set 87155CH

    SEALED POWER

    $95.99
    Connecting 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
    $95.99
    Qty in Cart: 0
    Quantity:
    Price:
    $95.99
    Subtotal:
  • Rod Bearing Set  SEA8-7100CH20

    Rod Bearing Set SEA8-7100CH20

    SEALED POWER

    $97.99
    Connecting 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
    Qty in Cart: 0
    Quantity:
    Price:
    $97.99
    Subtotal:
  • Rod Bearing Set  SEA8-7100CH1X

    Rod Bearing Set SEA8-7100CH1X

    SEALED POWER

    $88.99
    A 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
    $88.99
    Qty in Cart: 0
    Quantity:
    Price:
    $88.99
    Subtotal:
  • Rod Bearing Set  SEA8-7100CH10

    Rod Bearing Set SEA8-7100CH10

    SEALED POWER

    $96.99
    A 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
    $96.99
    Qty in Cart: 0
    Quantity:
    Price:
    $96.99
    Subtotal:
  • Rod Bearing Set  SEA8-7100CH1

    Rod Bearing Set SEA8-7100CH1

    SEALED POWER

    $89.99
    Connecting 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
    $89.99
    Qty in Cart: 0
    Quantity:
    Price:
    $89.99
    Subtotal:
  • Rod Bearing Set  SEA8-7100CH

    Rod Bearing Set 87100CH

    SEALED POWER

    $86.99
    Connecting 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
    $86.99
    Qty in Cart: 0
    Quantity:
    Price:
    $86.99
    Subtotal:
  • Main Bearing Set  SEA140M1X

    Main Bearing Set SEA140M1X

    SEALED POWER

    $92.99
    Small 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
    $92.99
    Qty in Cart: 0
    Quantity:
    Price:
    $92.99
    Subtotal:
  • Main Bearing Set  SEA140M

    Main Bearing Set 140M

    SEALED POWER

    $94.99
    Main 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
    $94.99
    Qty in Cart: 0
    Quantity:
    Price:
    $94.99
    Subtotal:
  • Main Bearing Set          SEA139M11

    Main Bearing Set SEA139M11

    SEALED POWER

    $88.99
    A 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
    $88.99
    Qty in Cart: 0
    Quantity:
    Price:
    $88.99
    Subtotal:
  • Main Bearing Set  SEA139M10

    Main Bearing Set SEA139M10

    SEALED POWER

    $78.99
    A 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
    $78.99
    Qty in Cart: 0
    Quantity:
    Price:
    $78.99
    Subtotal:
  • Main Bearing Set  SEA139M1

    Main Bearing Set SEA139M1

    SEALED POWER

    $78.99
    Main 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
    $78.99
    Qty in Cart: 0
    Quantity:
    Price:
    $78.99
    Subtotal:
  • Main Bearing Set  SEA139M

    Main Bearing Set 139M

    SEALED POWER

    $78.99
    Main 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
    Qty in Cart: 0
    Quantity:
    Price:
    $78.99
    Subtotal:
  • Main Bearing Set  SEA130M1X

    Main Bearing Set SEA130M1X

    SEALED POWER

    $89.99
    A 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
    Qty in Cart: 0
    Quantity:
    Price:
    $89.99
    Subtotal:
  • Main Bearing Set  SEA130M10

    Main Bearing Set SEA130M10

    SEALED POWER

    $97.99
    A precision main bearing set is the foundation of engine reliability and longevity. If your small block Ford is running worn or damaged mains, you're risking catastrophic failure—proper bearing clearances are non-negotiable for consistent power delivery...
    SEA130M10
    SKU:
    SEA130M10
    Availability:
    Ships Same Business Day
    Weight:
    1.52 LBS
    MFG Part #:
    130M10
    $97.99
    Qty in Cart: 0
    Quantity:
    Price:
    $97.99
    Subtotal:
  • Main Bearing Set  SEA130M

    Main Bearing Set 130M

    SEALED POWER

    $91.99
    A quality main bearing set is the foundation of a reliable, long-lasting engine—especially when you're pushing performance limits. The Speed Pro 130M delivers OEM-grade precision and durability for Small Block Ford builds, ensuring consistent oil...
    SEA130M
    SKU:
    SEA130M
    Availability:
    Ships Same Business Day
    Weight:
    1.48 LBS
    MFG Part #:
    130M
    $91.99
    Qty in Cart: 0
    Quantity:
    Price:
    $91.99
    Subtotal:
  • Main Bearing Set  SEA129M

    Main Bearing Set 129M

    SEALED POWER

    $97.99
    Main bearing failure is one of the quickest ways to turn a running engine into scrap metal. The Speed Pro 129M Main Bearing Set delivers OEM-grade reliability with the precision tolerances needed to handle sustained high-RPM operation in Small Block Ford...
    SEA129M
    SKU:
    SEA129M
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    MFG Part #:
    129M
    $97.99
    Qty in Cart: 0
    Quantity:
    Price:
    $97.99
    Subtotal:
  • Cam Bearing Set  SEA1235M

    Cam Bearing Set 1235M

    SEALED POWER

    $28.99
    A quality cam bearing set is fundamental to reliable engine operation, especially in high-performance small block Chevy applications where proper journal support directly impacts valve timing accuracy and longevity. The 1235M delivers OEM-equivalent...
    SEA1235M
    SKU:
    SEA1235M
    Availability:
    Ships Same Business Day
    Weight:
    0.52 LBS
    MFG Part #:
    1235M
    $28.99
    Qty in Cart: 0
    Quantity:
    Price:
    $28.99
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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