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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
  • Piston Ring Set  4.040 .043 .043 3.0MM JEPJ71408-4040-5

    Piston Ring Set 4.040 .043 .043 3.0MM J71408-4040-5

    JE PISTONS

    $299.99
    Maintaining proper ring seal is critical for cylinder compression, blowby control, and consistent power output across your racing engine. This Pro Seal piston ring set delivers low-tension performance with plasma moly coating, designed to reduce friction...
    JEPJ71408-4040-5
    SKU:
    JEPJ71408-4040-5
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    $299.99
    Qty in Cart: 0
    Quantity:
    Price:
    $299.99
    Subtotal:
  • Piston Ring Set  4.030 .043 .043 3.0MM JEPJ71408-4030-5

    Piston Ring Set 4.030 .043 .043 3.0MM J71408-4030-5

    JE PISTONS

    $299.99
    Piston rings are critical to engine sealing, compression, and longevity—especially in high-performance applications where ring blow-by directly impacts power output and fuel economy. This Pro Seal ring set delivers low-tension design with plasma moly...
    JEPJ71408-4030-5
    SKU:
    JEPJ71408-4030-5
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    $299.99
    Qty in Cart: 0
    Quantity:
    Price:
    $299.99
    Subtotal:
  • SBC Flat Top Piston Set 4.045 Bore -5cc JEP258027

    SBC Flat Top Piston Set 4.045 Bore -5cc 258027

    JE PISTONS

    $1,099.99
    If you're building a high-compression small block Chevy engine, piston selection directly impacts combustion efficiency, detonation resistance, and overall power output. The F.S.R. Tour Series GP forged pistons deliver the geometry and material quality...
    JEP258027
    SKU:
    JEP258027
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $1,099.99
    Subtotal:
  • SBC 400 Domed Piston Set 18 Degree JEP213123

    SBC 400 Domed Piston Set 18 Degree 213123

    JE PISTONS

    $1,024.99
    If you're building a small block Chevy with compression ratio and peak performance in mind, domed pistons are essential for maximizing combustion efficiency and horsepower output. These forged SBC 400 domed pistons deliver the geometry you need to...
    JEP213123
    SKU:
    JEP213123
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    $1,024.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1,024.99
    Subtotal:
  • SBC 400 Domed Piston Set 18 Degree JEP213112

    SBC 400 Domed Piston Set 18 Degree 213112

    JE PISTONS

    $1,024.99
    Maximize combustion efficiency and boost compression ratio in your Small Block Chevy with forged domed pistons engineered for serious power gains. The 18-degree dome geometry is purpose-built for high-RPM stability and detonation resistance, making these...
    JEP213112
    SKU:
    JEP213112
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    $1,024.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1,024.99
    Subtotal:
  • SBC Flat Top Piston Set  JEP194340

    SBC Flat Top Piston Set 194340

    JE PISTONS

    $974.99
    Built for serious Small Block Chevy builders who demand precision and reliability, these forged flat-top pistons deliver the compression ratio consistency and durability required for high-RPM performance. The minus 5.0 cc dish provides excellent quench...
    JEP194340
    SKU:
    JEP194340
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    $974.99
    Qty in Cart: 0
    Quantity:
    Price:
    $974.99
    Subtotal:
  • 1.570 Dual Valve Springs  ISK9968RAD

    Isky 1.570 Dual Valve Springs 9968RAD

    ISKY CAMS

    $638.99
    Valve spring performance directly impacts engine reliability at high RPM, and compromised springs lead to valve float and catastrophic failure. The Isky 1.570 Dual Valve Springs deliver the consistent load and damping characteristics required for...
    ISK9968RAD
    SKU:
    ISK9968RAD
    Availability:
    Ships Same Business Day
    Weight:
    5.70 LBS
    $638.99
    Qty in Cart: 0
    Quantity:
    Price:
    $638.99
    Subtotal:
  • SBC Roller Lifter Set EZ-Max Series ISK372LO180EZMAX

    Isky SBC Roller Lifter Set EZ-Max Series 372LO180EZMAX

    ISKY CAMS

    $1,386.99
    Mechanical roller lifters are essential for any serious small block Chevy build pushing higher RPMs and aggressive cam profiles. The Isky EZ-Max Series delivers the durability and precision needed for consistent valve actuation under extreme conditions,...
    ISK372LO180EZMAX
    SKU:
    ISK372LO180EZMAX
    Availability:
    Ships Same Business Day
    Weight:
    4.75 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $1,386.99
    Subtotal:
  • 1.514 Dual Valve Spring & Retainer Kit w/Damper HRC98636-K32

    1.514 Dual Valve Spring & Retainer Kit w/Damper 98636-K32

    HOWARDS RACING COMPONENTS

    $238.99
    High-performance engine builds demand valve springs engineered for sustained RPM capability and reliability under extreme conditions. This dual valve spring and damper kit delivers the spring rate and bind characteristics needed for forced-induction and...
    HRC98636-K32
    SKU:
    HRC98636-K32
    Availability:
    Ships Same Business Day
    Weight:
    8.00 LBS
    $238.99
    Qty in Cart: 0
    Quantity:
    Price:
    $238.99
    Subtotal:
  • 1.514 Dia. Dual Valve Spring Kit w/Damper HRC98636-K11

    1.514 Dia. Dual Valve Spring Kit w/Damper 98636-K11

    HOWARDS RACING COMPONENTS

    $229.99
    Valve spring performance directly impacts your engine's ability to maintain valve control at high RPM, preventing float and ensuring consistent combustion. This dual spring kit with damper delivers the stiffness and stability needed for aggressive cam...
    HRC98636-K11
    SKU:
    HRC98636-K11
    Availability:
    Ships Same Business Day
    Weight:
    8.00 LBS
    $229.99
    Qty in Cart: 0
    Quantity:
    Price:
    $229.99
    Subtotal:
  • 1.514 Dual Valve Springs  HRC98512

    1.514 Dual Valve Springs 98512

    HOWARDS RACING COMPONENTS

    $183.99
    Dual valve springs are essential for high-RPM stability and consistent valve control, preventing float and surge during aggressive cam profiles. Whether you're running a naturally aspirated build or forced induction setup, these springs deliver the...
    HRC98512
    SKU:
    HRC98512
    Availability:
    Ships Same Business Day
    Weight:
    5.00 LBS
    $183.99
    Qty in Cart: 0
    Quantity:
    Price:
    $183.99
    Subtotal:
  • 1.485 Valve Springs/ Locks & Retainer Kit HRC98511-K31

    1.485 Valve Springs/ Locks & Retainer Kit 98511-K31

    HOWARDS RACING COMPONENTS

    $220.99
    Valve spring performance directly impacts cylinder head durability and engine RPM capability—weak or worn springs cause valve float and catastrophic engine damage. This 1.485" OD valve spring kit delivers a stiff 355 lb/in rate with matched locks and...
    HRC98511-K31
    SKU:
    HRC98511-K31
    Availability:
    Ships Same Business Day
    Weight:
    5.00 LBS
    $220.99
    Qty in Cart: 0
    Quantity:
    Price:
    $220.99
    Subtotal:
  • 1.465 Dual Valve Spring Kit w/Damper HRC98438-K12

    1.465 Dual Valve Spring Kit w/Damper 98438-K12

    HOWARDS RACING COMPONENTS

    $277.99
    A high-rpm engine demands valve springs engineered to handle sustained load cycles without failure. This dual spring kit delivers the consistent seat pressure and damping characteristics needed for reliable performance at the track or on the dyno...
    HRC98438-K12
    SKU:
    HRC98438-K12
    Availability:
    Ships Same Business Day
    Weight:
    6.00 LBS
    $277.99
    Qty in Cart: 0
    Quantity:
    Price:
    $277.99
    Subtotal:
  • 1.445 Valve Spring Kit Single w/Damper HRC98412-K11

    1.445 Valve Spring Kit Single w/Damper 98412-K11

    HOWARDS RACING COMPONENTS

    $209.99
    A quality valve spring kit is essential for maintaining proper valve control and preventing float at high RPMs—critical for both street performance and racing applications. This single spring damper setup delivers consistent seat pressure and durability...
    HRC98412-K11
    SKU:
    HRC98412-K11
    Availability:
    Ships Same Business Day
    Weight:
    4.50 LBS
    $209.99
    Qty in Cart: 0
    Quantity:
    Price:
    $209.99
    Subtotal:
  • 1.250 Valve Spring Kit Single w/Damper HRC98214-K11

    1.250 Valve Spring Kit Single w/Damper 98214-K11

    HOWARDS RACING COMPONENTS

    $145.99
    High-RPM stability demands valve springs engineered for precision and reliability. This single spring and damper kit delivers consistent load rates across extended engine speeds, eliminating float and maintaining valve timing integrity. Whether you're...
    HRC98214-K11
    SKU:
    HRC98214-K11
    Availability:
    Ships Same Business Day
    Weight:
    3.75 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $145.99
    Subtotal:
  • 1.265 Valve Springs w/ Damper HRC98213RS

    1.265 Valve Springs w/ Damper 98213RS

    HOWARDS RACING COMPONENTS

    $169.99
    If you're running a Racesaver-legal engine build, valve spring selection directly impacts your engine's reliability under high RPM conditions. The 98213RS delivers the spring rate and damping characteristics needed to control valve float while...
    HRC98213RS
    SKU:
    HRC98213RS
    Availability:
    Ships Same Business Day
    Weight:
    3.00 LBS
    $169.99
    Qty in Cart: 0
    Quantity:
    Price:
    $169.99
    Subtotal:
  • 1.265 Valve Spring Kit Single w/Damp HRC98212-K12

    1.265 Valve Spring Kit Single w/Damp 98212-K12

    HOWARDS RACING COMPONENTS

    $170.99
    A properly engineered valve spring kit is critical for maintaining accurate valve control under high RPM conditions and aggressive cam profiles. The 1.265 Valve Spring Kit Single w/Damp delivers consistent performance with its precisely calculated 425...
    HRC98212-K12
    SKU:
    HRC98212-K12
    Availability:
    Ships Same Business Day
    Weight:
    6.00 LBS
    $170.99
    Qty in Cart: 0
    Quantity:
    Price:
    $170.99
    Subtotal:
  • Solid Roller Lifters - SBC HRC91134

    Solid Roller Lifters - SBC 91134

    HOWARDS RACING COMPONENTS

    $757.99
    Solid roller lifters eliminate the compliance and wear issues inherent to hydraulic designs, delivering consistent valve actuation and precise timing control across high-RPM applications. For small block Chevy builds pushing aggressive cam profiles,...
    HRC91134
    SKU:
    HRC91134
    Availability:
    Ships Same Business Day
    Weight:
    4.40 LBS
    $757.99
    Qty in Cart: 0
    Quantity:
    Price:
    $757.99
    Subtotal:
  • Breather - Crankcase Vent GMP25534355

    Chevrolet Performance Breather - Crankcase Vent 25534355

    CHEVROLET PERFORMANCE

    $84.31
    Proper crankcase ventilation is critical for engine longevity and consistent performance under load. This Chevrolet Performance breather system prevents pressure buildup that can compromise seals, gaskets, and oil control while maintaining clean air...
    GMP25534355
    SKU:
    GMP25534355
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    $84.31
    Qty in Cart: 0
    Quantity:
    Price:
    $84.31
    Subtotal:
  • SBC C/T Oil Pan  GMP25534353

    Chevrolet Performance SBC C/T Oil Pan 25534353

    CHEVROLET PERFORMANCE

    $603.71
    Circle track racing demands an oil pan engineered for sustained high-RPM performance and consistent lubrication under lateral g-forces. This Chevrolet Performance rear sump design maximizes oil capacity while maintaining optimal pickup efficiency during...
    GMP25534353
    SKU:
    GMP25534353
    Availability:
    Ships Same Business Day
    Weight:
    19.30 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $603.71
    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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