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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
  • Chevy LS Spring Kit 1.295 w/Ti-Retainers MAN26362334KS

    Manley Chevy LS Spring Kit 1.295 w/Ti-Retainers 26362334KS

    MANLEY

    $411.70
    High-RPM stability and durability demand valve springs engineered for precision. The Manley Chevy LS Spring Kit delivers the consistent load rates and lightweight titanium construction required to support aggressive cam profiles and sustained boost...
    MAN26362334KS
    SKU:
    MAN26362334KS
    Availability:
    Ships Same Business Day
    Weight:
    4.65 LBS
    $411.70
    Qty in Cart: 0
    Quantity:
    Price:
    $411.70
    Subtotal:
  • Chevy LS Spring Kit 1.295 w/Steel Retainers MAN26362134KS

    Manley Chevy LS Spring Kit 1.295 w/Steel Retainers 26362134KS

    MANLEY

    $344.28
    High-RPM stability and consistent valve control are non-negotiable in LS-series racing applications, and factory valve springs simply won't cut it when you're pushing power levels beyond stock parameters. The Manley Chevy LS Spring Kit delivers the...
    MAN26362134KS
    SKU:
    MAN26362134KS
    Availability:
    Ships Same Business Day
    Weight:
    4.65 LBS
    $344.28
    Qty in Cart: 0
    Quantity:
    Price:
    $344.28
    Subtotal:
  • SBC E/D 1.600 Exhaust Valves 11/32 5.165 OAL MAN11705-8

    Manley SBC E/D 1.600 Exhaust Valves 11/32 5.165 OAL 11705-8

    MANLEY

    $514.08
    Precision exhaust valves are the foundation of efficient combustion and consistent power delivery in any SBC engine build. Manley's SBC E/D exhaust valves are engineered to withstand sustained high-RPM operation while maintaining tight tolerances that...
    MAN11705-8
    SKU:
    MAN11705-8
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $514.08
    Subtotal:
  • LS7 R/M 1.615 Exhaust Valves MAN11689-8

    Manley LS7 R/M 1.615 Exhaust Valves 11689-8

    MANLEY

    $202.55
    LS7 engines demand exhaust valves engineered for sustained high-RPM performance and thermal cycling. These Manley R/M valves are precision-manufactured to handle the extreme demands of forced-induction and nitrous applications while maintaining precise...
    MAN11689-8
    SKU:
    MAN11689-8
    Availability:
    Ships Same Business Day
    Weight:
    2.20 LBS
    $202.55
    Qty in Cart: 0
    Quantity:
    Price:
    $202.55
    Subtotal:
  • LS7 S/D 2.205 Intake Valves MAN11688-8

    Manley LS7 S/D 2.205 Intake Valves 11688-8

    MANLEY

    $301.07
    If you're running an LS7 engine at the track or building a high-revving street machine, stock intake valves won't cut it. Manley's Pro Flo intake valves are precision-engineered to handle sustained boost and aggressive valve timing without sacrificing...
    MAN11688-8
    SKU:
    MAN11688-8
    Availability:
    Ships Same Business Day
    Weight:
    2.55 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $301.07
    Subtotal:
  • LS1 E/D 1.575 Exhaust Valves MAN11681-8

    Manley LS1 E/D 1.575 Exhaust Valves 11681-8

    MANLEY

    $514.08
    If you're building a serious LS1 engine that demands reliability under extreme conditions, OEM exhaust valves won't cut it. Manley's Extreme Duty valves are engineered to withstand aggressive valve timing, high RPM operation, and sustained heat cycles...
    MAN11681-8
    SKU:
    MAN11681-8
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $514.08
    Subtotal:
  • GM LS7 S/D 1.615 Exhaust Valves MAN11679-8

    Manley GM LS7 S/D 1.615 Exhaust Valves 11679-8

    MANLEY

    $301.07
    If you're pushing your LS7 to its limits, stock exhaust valves won't cut it. Manley's severe-duty valves are engineered to handle sustained high RPM and aggressive thermal cycles without degradation, giving you the reliability required for track duty or...
    MAN11679-8
    SKU:
    MAN11679-8
    Availability:
    Ships Same Business Day
    Weight:
    2.15 LBS
    $301.07
    Qty in Cart: 0
    Quantity:
    Price:
    $301.07
    Subtotal:
  • LS1 S/D 1.600 Exhaust Valves MAN11677-8

    Manley LS1 S/D 1.600 Exhaust Valves 11677-8

    MANLEY

    $301.07
    If you're building or rebuilding an LS1 engine for serious duty, valve quality directly impacts combustion efficiency, peak horsepower, and longevity under sustained high RPM operation. Manley's stainless steel exhaust valves are precision-manufactured...
    MAN11677-8
    SKU:
    MAN11677-8
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $301.07
    Subtotal:
  • LS1 S/D 1.575 Exhaust Valves MAN11675-8

    Manley LS1 S/D 1.575 Exhaust Valves 11675-8

    MANLEY

    $301.07
    When you're pushing your LS engine to its limits, stock exhaust valves become the weak link in your buildup. Manley's Severe Duty exhaust valves are engineered to handle extreme heat cycles and high RPM abuse without degradation, ensuring consistent flow...
    MAN11675-8
    SKU:
    MAN11675-8
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    $301.07
    Qty in Cart: 0
    Quantity:
    Price:
    $301.07
    Subtotal:
  • LS1 R/M 1.590in Exhaust Valves MAN11621-8

    Manley LS1 R/M 1.590in Exhaust Valves 11621-8

    MANLEY

    $202.55
    If you're building or rebuilding an LS engine for sustained high-RPM operation, OEM exhaust valves will cost you power and reliability. Manley's Race Series exhaust valves are engineered from premium stainless steel to handle the thermal and mechanical...
    MAN11621-8
    SKU:
    MAN11621-8
    Availability:
    Ships Same Business Day
    Weight:
    2.04 LBS
    $202.55
    Qty in Cart: 0
    Quantity:
    Price:
    $202.55
    Subtotal:
  • LS1 P/F 2.165in Intake Valves MAN11620-8

    Manley LS1 P/F 2.165in Intake Valves 11620-8

    MANLEY

    $202.55
    If you're running a high-output LS1 engine, your stock intake valves are a bottleneck—they can't sustain the flow rates and thermal loads of serious power. Manley's Race Series intake valves are engineered for sustained high-RPM operation and aggressive...
    MAN11620-8
    SKU:
    MAN11620-8
    Availability:
    Ships Same Business Day
    Weight:
    2.59 LBS
    $202.55
    Qty in Cart: 0
    Quantity:
    Price:
    $202.55
    Subtotal:
  • SBC P/F 2.020in Intake Valves - LS1 MAN11362-8

    Manley SBC P/F 2.020in Intake Valves - LS1 11362-8

    MANLEY

    $188.69
    If you're building a high-revving LS1 engine that demands precision at every valve event, OEM intake valves won't cut it. Manley's Race Series intake valves are engineered to handle sustained high-RPM abuse while maintaining consistent sealing and flow...
    MAN11362-8
    SKU:
    MAN11362-8
    Availability:
    Ships Same Business Day
    Weight:
    2.30 LBS
    $188.69
    Qty in Cart: 0
    Quantity:
    Price:
    $188.69
    Subtotal:
  • LS1 R/M 1.550 Exhaust Valve MAN11361-8

    Manley LS1 R/M 1.550 Exhaust Valve 11361-8

    MANLEY

    $188.69
    If you're building or refreshing an LS1 or LS2 engine for serious track duty, valve quality directly impacts combustion efficiency and reliability under sustained high-RPM operation. Manley's Race Master exhaust valves are engineered with stainless steel...
    MAN11361-8
    SKU:
    MAN11361-8
    Availability:
    Ships Same Business Day
    Weight:
    2.10 LBS
    $188.69
    Qty in Cart: 0
    Quantity:
    Price:
    $188.69
    Subtotal:
  • LS1 P/F 2.000in Intake Valve MAN11360-8

    Manley LS1 P/F 2.000in Intake Valve 11360-8

    MANLEY

    $188.69
    If you're building or rebuilding an LS-series engine for competition, valve quality directly impacts combustion efficiency, rpm capability, and reliability under sustained high-load conditions. Manley's Race Series intake valves are engineered from...
    MAN11360-8
    SKU:
    MAN11360-8
    Availability:
    Ships Same Business Day
    Weight:
    2.25 LBS
    $188.69
    Qty in Cart: 0
    Quantity:
    Price:
    $188.69
    Subtotal:
  • SBF Flat Top Piston Set 4.045 Bore -6.5cc MAH930244745

    SBF Flat Top Piston Set 4.045 Bore -6.5cc 930244745

    MAHLE PISTONS

    $776.57
    If you're building a high-compression Small Block Ford engine or refreshing a tired short block, piston selection directly impacts your power output, reliability, and combustion efficiency. These SBF flat-top pistons deliver a -6.5cc dish volume that...
    MAH930244745
    SKU:
    MAH930244745
    Availability:
    Ships Same Business Day
    Weight:
    11.40 LBS
    $776.57
    Qty in Cart: 0
    Quantity:
    Price:
    $776.57
    Subtotal:
  • LS7 PowerPak F/T Piston Set 4.125 Bore MAH930221625

    LS7 PowerPak F/T Piston Set 4.125 Bore 930221625

    MAHLE PISTONS

    $790.44
    If you're building a high-displacement LS7 engine and need reliable, precision-engineered pistons that can handle aggressive boost and elevated RPM, the PowerPak F/T forged piston set is engineered for exactly that demand. Forged construction delivers...
    MAH930221625
    SKU:
    MAH930221625
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    $790.44
    Qty in Cart: 0
    Quantity:
    Price:
    $790.44
    Subtotal:
  • SBC FT Power Domed Piston Set 4.040 Bore MAH930207940

    SBC FT Power Domed Piston Set 4.040 Bore 930207940

    MAHLE PISTONS

    $856.21
    If you're building a high-compression Small Block Chevy engine or upgrading an existing platform, piston selection directly impacts combustion efficiency, detonation resistance, and overall power output. FT Power's forged domed pistons deliver the...
    MAH930207940
    SKU:
    MAH930207940
    Availability:
    Ships Same Business Day
    Weight:
    14.00 LBS
    $856.21
    Qty in Cart: 0
    Quantity:
    Price:
    $856.21
    Subtotal:
  • SBC PowerPak F/T Piston Set 4.030 Bore MAH930206630

    SBC PowerPak F/T Piston Set 4.030 Bore 930206630

    MAHLE PISTONS

    $854.38
    If you're building a high-compression Small Block Chevy engine or need reliable replacements for aggressive racing applications, forged pistons are non-negotiable. The SBC PowerPak F/T Piston Set delivers the durability and thermal stability required for...
    MAH930206630
    SKU:
    MAH930206630
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    $854.38
    Qty in Cart: 0
    Quantity:
    Price:
    $854.38
    Subtotal:
  • SBC PowerPak F/T Piston Set 4.060 Bore MAH930206560

    SBC PowerPak F/T Piston Set 4.060 Bore 930206560

    MAHLE PISTONS

    $854.38
    If you're building a high-compression SBC engine or optimizing an existing one, you need pistons that deliver reliable power without compromise. These PowerPak forged pistons are engineered for serious performance, offering the strength and precision...
    MAH930206560
    SKU:
    MAH930206560
    Availability:
    Ships Same Business Day
    Weight:
    15.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $854.38
    Subtotal:
  • SBC PowerPak F/T Piston Set 4.040 Bore MAH930203640

    SBC PowerPak F/T Piston Set 4.040 Bore 930203640

    MAHLE PISTONS

    $776.57
    Building a small block Chevy engine that demands reliability under sustained boost or high RPM load? The SBC PowerPak F/T Piston Set delivers the structural integrity and precision fit required for forced induction and competition use. Forged...
    MAH930203640
    SKU:
    MAH930203640
    Availability:
    Ships Same Business Day
    Weight:
    11.60 LBS
    $776.57
    Qty in Cart: 0
    Quantity:
    Price:
    $776.57
    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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