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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  M77CB831HN10

    Rod Bearing CB-831HN-10

    MICHIGAN 77

    $18.99
    When you're rebuilding a Small Block Ford engine, precision bearing clearance is non-negotiable—oversized wear means catastrophic failure. The Rod Bearing CB-831HN-10 delivers the exact undersize geometry you need for engines that have been bored or show...
    M77CB831HN10
    SKU:
    M77CB831HN10
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $18.99
    Qty in Cart: 0
    Quantity:
    Price:
    $18.99
    Subtotal:
  • Rod Bearing  M77CB745HN30

    Rod Bearing CB-745HN-30

    MICHIGAN 77

    $16.99
    Rod bearings are the critical interface between your connecting rods and crankshaft—their durability directly impacts engine reliability and performance under extreme load. The CB-745HN-30 delivers precision engineering with OEM-quality construction,...
    M77CB745HN30
    SKU:
    M77CB745HN30
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Rod Bearing  M77CB745HN20

    Rod Bearing CB-745HN-20

    MICHIGAN 77

    $21.99
    Connecting rod bearings are critical wear items that directly impact engine longevity and performance—undersized bearings compensate for wear and maintain proper clearances, preventing catastrophic engine failure. The CB-745HN-20 delivers precision...
    M77CB745HN20
    SKU:
    M77CB745HN20
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $21.99
    Qty in Cart: 0
    Quantity:
    Price:
    $21.99
    Subtotal:
  • Rod Bearing  M77CB745HN10

    Rod Bearing CB-745HN-10

    MICHIGAN 77

    $14.99
    Precision bearing clearances are critical to engine longevity and reliability under sustained RPM and load—especially in forced induction or high-revving applications. The Rod Bearing CB-745HN-10 delivers the exact fitment and tolerance your Small Block...
    M77CB745HN10
    SKU:
    M77CB745HN10
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • Rod Bearing  M77CB663P2

    Rod Bearing CB-663P-2

    MICHIGAN 77

    $9.99
    A connecting rod bearing is the critical interface between your crankshaft and connecting rods—it must handle immense pressure and heat while maintaining precise clearances. The CB-663P-2 delivers OEM-grade reliability with tight tolerances, ensuring...
    M77CB663P2
    SKU:
    M77CB663P2
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • Rod Bearing  M77CB663HND10

    Rod Bearing CB-663HND-10

    MICHIGAN 77

    $18.99
    If you're rebuilding a Small Block Chevy engine or replacing worn bearing surfaces, the Rod Bearing CB-663HND-10 delivers the precision fit and durability your high-performance build demands. This narrowed, doweled bearing is engineered for critical...
    M77CB663HND10
    SKU:
    M77CB663HND10
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $18.99
    Qty in Cart: 0
    Quantity:
    Price:
    $18.99
    Subtotal:
  • Rod Bearing  M77CB663HN30

    Rod Bearing CB-663HN-30

    MICHIGAN 77

    $16.99
    When you're rebuilding a Small Block Chevy engine, bearing clearance and oil film thickness are non-negotiable—they directly impact reliability and longevity under sustained boost or high RPM. The Rod Bearing CB-663HN-30 delivers the precise undersizing...
    M77CB663HN30
    SKU:
    M77CB663HN30
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Rod Bearing  M77CB663HN21

    Rod Bearing CB-663HN-21

    MICHIGAN 77

    $16.99
    If you're rebuilding a Small Block Chevy engine or replacing worn connecting rod bearings, the CB-663HN-21 delivers the precision fit and durability your build demands. This 0.021" undersize bearing accounts for worn journals, allowing you to...
    M77CB663HN21
    SKU:
    M77CB663HN21
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Rod Bearing  M77CB663HN20

    Rod Bearing CB-663HN-20

    MICHIGAN 77

    $16.99
    Connecting rod bearings are critical wear items that directly affect engine reliability and longevity—especially under high-load conditions. The CB-663HN-20 delivers the precision fit and reduced friction your Small Block Chevy needs to maintain...
    M77CB663HN20
    SKU:
    M77CB663HN20
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Rod Bearing  M77CB663HN19

    Rod Bearing CB-663HN-19

    MICHIGAN 77

    $16.99
    Precision bearing clearance is critical for small block Chevy longevity and reliability under sustained load. The Rod Bearing CB-663HN-19 delivers exact OEM fitment with 0.019" undersize geometry, ensuring proper oil film thickness and reducing...
    M77CB663HN19
    SKU:
    M77CB663HN19
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • Rod Bearing  M77CB663HN11

    Rod Bearing CB-663HN-11

    MICHIGAN 77

    $19.99
    If you're rebuilding a Small Block Chevy engine or replacing worn connecting rod bearings, the CB-663HN-11 delivers the precision fit and durability needed for reliable performance. This H-Series bearing is engineered with 0.011 in undersize...
    M77CB663HN11
    SKU:
    M77CB663HN11
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $19.99
    Qty in Cart: 0
    Quantity:
    Price:
    $19.99
    Subtotal:
  • Rod Bearing  M77CB663HN10

    Rod Bearing CB-663HN-10

    MICHIGAN 77

    $17.99
    Proper rod bearing clearance is critical to engine longevity, and the CB-663HN-10 delivers the precision fit your small block Chevy demands. This undersized bearing ensures optimal oil film thickness and reduces clearance-related wear during sustained...
    M77CB663HN10
    SKU:
    M77CB663HN10
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    $17.99
    Qty in Cart: 0
    Quantity:
    Price:
    $17.99
    Subtotal:
  • Serpentine Drive Kit SBC Water Pump KRCKIT16225605

    KRC Serpentine Drive Kit SBC Water Pump KIT 16225605

    KRC POWER STEERING

    $287.61
    A serpentine belt system eliminates the complexity of multiple V-belts while delivering reliable, efficient power distribution to your Small Block Chevy's accessories. This all-in-one kit simplifies installation with bolt-on compatibility, and the black...
    KRCKIT16225605
    SKU:
    KRCKIT16225605
    Availability:
    Ships Same Business Day
    Weight:
    6.00 LBS
    $287.61
    Qty in Cart: 0
    Quantity:
    Price:
    $287.61
    Subtotal:
  • Serpentine Crank Pulley 4in R-Lok KRC38240000

    KRC Serpentine Crank Pulley 4in R-Lok KRC 38240000

    KRC POWER STEERING

    $76.96
    The KRC Serpentine Crank Pulley is engineered for racers and high-performance builders who demand reliability under extreme conditions. Its R-Lok drive system eliminates slippage and ensures consistent accessory drive performance, whether you're running...
    KRC38240000
    SKU:
    KRC38240000
    Availability:
    Ships Same Business Day
    Weight:
    0.59 LBS
    $76.96
    Qty in Cart: 0
    Quantity:
    Price:
    $76.96
    Subtotal:
  • Serpentine Crank Pulley 3.0 KRC38230000

    KRC Serpentine Crank Pulley 3.0 KRC 38230000

    KRC POWER STEERING

    $68.53
    The KRC Serpentine Crank Pulley 3.0 is engineered for builders who demand reliable accessory drive performance without compromise. Its compact 3.0-inch diameter and R-Lok drive system deliver consistent belt engagement and minimal parasitic loss, making...
    KRC38230000
    SKU:
    KRC38230000
    Availability:
    Ships Same Business Day
    Weight:
    0.41 LBS
    $68.53
    Qty in Cart: 0
    Quantity:
    Price:
    $68.53
    Subtotal:
  • Serpentine Crank Pulley 2.5 KRC38225000

    KRC Serpentine Crank Pulley 2.5 KRC 38225000

    KRC POWER STEERING

    $52.90
    The KRC Serpentine Crank Pulley is engineered for builders who demand reliability in high-RPM environments. Its compact 2.5-inch diameter and optimized R-Lok drive system eliminate slippage under sustained load, while the aluminum construction keeps...
    KRC38225000
    SKU:
    KRC38225000
    Availability:
    Ships Same Business Day
    Weight:
    0.17 LBS
    $52.90
    Qty in Cart: 0
    Quantity:
    Price:
    $52.90
    Subtotal:
  • Fabricated Alum. Valve Cover Ford 2300 4-Cyl. KEVVC212

    Fabricated Alum. Valve Cover Ford 2300 4-Cyl. VC212

    KEVKO OIL PANS & COMPONENTS

    $199.99
    A fabricated aluminum valve cover eliminates the weight and fragility of stock cast iron designs while maintaining a clean, purposeful aesthetic under the hood. For Ford 2300 4-cylinder engines, this direct-fit replacement provides reliable sealing and...
    KEVVC212
    SKU:
    KEVVC212
    Availability:
    Ships Same Business Day
    Weight:
    7.00 LBS
    $199.99
    Qty in Cart: 0
    Quantity:
    Price:
    $199.99
    Subtotal:
  • Remote Breather Kit w/ 1-3/8in Slip Ons KEVK9085-CRATE

    Remote Breather Kit w/ 1-3/8in Slip Ons K9085-CRATE

    KEVKO OIL PANS & COMPONENTS

    $219.99
    A remote breather kit is essential for crate engine builds and high-performance applications where crankcase pressure management directly impacts reliability and longevity. This kit eliminates the need for messy, visible breather tubes routed through the...
    KEVK9085-CRATE
    SKU:
    KEVK9085-CRATE
    Availability:
    Ships Same Business Day
    Weight:
    3.60 LBS
    $219.99
    Qty in Cart: 0
    Quantity:
    Price:
    $219.99
    Subtotal:
  • Slip-On Fitting 12AN x 1-3/8in KEVK9027

    Slip-On Fitting 12AN x 1-3/8in K9027

    KEVKO OIL PANS & COMPONENTS

    $44.99
    A reliable breather adapter is essential for any forced induction or crankcase ventilation system—it ensures proper pressure regulation while maintaining a sealed connection. The K9027 slip-on fitting provides a clean, secure transition from your 1-3/8"...
    KEVK9027
    SKU:
    KEVK9027
    Availability:
    Ships Same Business Day
    Weight:
    0.24 LBS
    $44.99
    Qty in Cart: 0
    Quantity:
    Price:
    $44.99
    Subtotal:
  • Ford 2300 4-Cyl Oil Pan Rear Sump w/Windage Tray KEVF800W

    Ford 2300 4-Cyl Oil Pan Rear Sump w/Windage Tray F800W

    KEVKO OIL PANS & COMPONENTS

    $384.99
    The Ford 2300 rear sump oil pan is engineered to maintain consistent oil supply to the crankshaft under high-RPM and sustained cornering loads. The full louvered aluminum windage tray minimizes oil aeration and foam—critical factors that directly impact...
    KEVF800W
    SKU:
    KEVF800W
    Availability:
    Ships Same Business Day
    Weight:
    13.45 LBS
    $384.99
    Qty in Cart: 0
    Quantity:
    Price:
    $384.99
    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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