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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
  • Pushrod - 5/16 .080 6.800 Long TDPT680805

    Trend Pushrod - 5/16 .080 6.800 Long T680805

    TREND PERFORMANCE PRODUCTS

    $11.99
    A quality pushrod is critical to maintaining precise valve timing and preventing catastrophic valvetrain failure under high RPM operation. The Trend T680805 delivers the strength and concentricity you need for competitive racing or high-performance...
    TDPT680805
    SKU:
    TDPT680805
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    T680805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.750 Long TDPT675805

    Trend Pushrod - 5/16 .080 6.750 Long T675805

    TREND PERFORMANCE PRODUCTS

    $11.99
    Pushrods are critical to your engine's valvetrain reliability, and cheap alternatives can cost you races or worse—catastrophic engine failure. The Trend Pushrod T675805 delivers the durability and precision you need with 4130 chromoly construction and...
    TDPT675805
    SKU:
    TDPT675805
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    T675805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.700 Long TDPT670805

    Trend Pushrod - 5/16 .080 6.700 Long T670805

    TREND PERFORMANCE PRODUCTS

    $11.99
    Valve float and pushrod failure are catastrophic failures waiting to happen if you're running marginal valvetrain components. The Trend Pushrod T670805 delivers the strength and precision needed to keep your valvetrain stable under sustained high RPM and...
    TDPT670805
    SKU:
    TDPT670805
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    T670805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.650 Long TDPT665805

    Trend Pushrod - 5/16 .080 6.650 Long T665805

    TREND PERFORMANCE PRODUCTS

    $11.99
    A quality pushrod is fundamental to valvetrain stability and engine reliability, especially in high-RPM applications where flex and deflection can compromise performance. The Trend T665805 delivers the precision engineering needed to maintain consistent...
    TDPT665805
    SKU:
    TDPT665805
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    T665805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.600 Long TDPT660805

    Trend Pushrod - 5/16 .080 6.600 Long T660805

    TREND PERFORMANCE PRODUCTS

    $11.99
    A pushrod's ability to withstand valve train loads directly impacts engine reliability and performance consistency—especially under high RPM or forced induction. The Trend T660805 delivers the precision engineering and material strength required to...
    TDPT660805
    SKU:
    TDPT660805
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    T660805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.500 Long TDPT650805

    Trend Pushrod - 5/16 .080 6.500 Long T650805

    TREND PERFORMANCE PRODUCTS

    $11.99
    Precision valvetrain geometry directly impacts engine reliability and performance consistency—especially under high RPM and sustained load. The Trend Pushrod T650805 delivers the strength and dimensional accuracy required to maintain exact valve timing...
    TDPT650805
    SKU:
    TDPT650805
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    MFG Part #:
    T650805
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.400 Long TDPT640805

    Trend Pushrod - 5/16 .080 6.400 Long T640805

    TREND PERFORMANCE PRODUCTS

    $11.99
    A quality pushrod is critical to maintaining consistent valve timing and reliability under high RPM and boost conditions. Trend's 4130 chromoly construction with centerless-ground precision ensures minimal deflection and maximum durability, whether...
    TDPT640805
    SKU:
    TDPT640805
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    T640805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.350 Long TDPT635805

    Trend Pushrod - 5/16 .080 6.350 Long T635805

    TREND PERFORMANCE PRODUCTS

    $11.99
    A quality pushrod is the backbone of any high-revving valvetrain—it directly transfers camshaft motion to your rocker arms, so weak or poorly-manufactured units will cost you power and reliability when it matters most. Trend Performance's 4130 chromoly...
    TDPT635805
    SKU:
    TDPT635805
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    T635805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.300 Long TDPT630805

    Trend Pushrod - 5/16 .080 6.300 Long T630805

    TREND PERFORMANCE PRODUCTS

    $11.99
    A quality pushrod is foundational to reliable valvetrain operation—especially in high-RPM racing applications where precision matters. The Trend T630805 delivers the strength and consistency needed to handle aggressive cam profiles and sustained engine...
    TDPT630805
    SKU:
    TDPT630805
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    T630805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Pushrod - 5/16 .080 6.250 Long TDPT625805

    Trend Pushrod - 5/16 .080 6.250 Long T625805

    TREND PERFORMANCE PRODUCTS

    $11.99
    Pushrod failures cost races. Trend's 4130 chromoly construction with centerless-ground precision eliminates flex and deflection under high-RPM valvetrain loads, giving you the durability demanded by serious racers. Whether you're chasing checkered flags...
    TDPT625805
    SKU:
    TDPT625805
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    T625805
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.6/1.6 Ratio TDM2301-160/160

    SBC Shaft Rocker Arm Kit - 1.6/1.6 Ratio 2301-160/160

    T AND D MACHINE

    $2,107.99
    A 1.6:1 rocker arm ratio maximizes valve lift and duration without requiring a custom cam grind, giving you better cylinder head flow and increased horsepower on your Small Block Chevy. This shaft-mount kit delivers full roller geometry across all eight...
    TDM2301-160/160
    SKU:
    TDM2301-160/160
    Availability:
    Ships Same Business Day
    Weight:
    16.54 LBS
    MFG Part #:
    2301-160/160
    $2,107.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2,107.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio TDM2301-160/150

    SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio 2301-160/150

    T AND D MACHINE

    $2,107.99
    Shaft-mount rocker arms are essential for high-revving Small Block Chevy builds where reliability and consistent valve actuation matter. This kit delivers a 1.6/1.5 ratio with full-roller design, reducing friction losses and enabling precise valve timing...
    TDM2301-160/150
    SKU:
    TDM2301-160/150
    Availability:
    Ships Same Business Day
    Weight:
    16.49 LBS
    MFG Part #:
    2301-160/150
    $2,107.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2,107.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.65/1.6 Ratio TDM2251-165/160

    SBC Shaft Rocker Arm Kit - 1.65/1.6 Ratio 2251-165/160

    T AND D MACHINE

    $2,106.99
    Rocker arm ratio directly impacts your valve lift and duration characteristics—getting it right is critical for optimizing cam performance and overall engine response. This Brodix Track 1 Spec kit delivers the precision engineering needed for serious...
    TDM2251-165/160
    SKU:
    TDM2251-165/160
    Availability:
    Ships Same Business Day
    Weight:
    16.32 LBS
    MFG Part #:
    2251-165/160
    $2,106.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2,106.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.6/1.6 Ratio TDM2251-160/160

    SBC Shaft Rocker Arm Kit - 1.6/1.6 Ratio 2251-160/160

    T AND D MACHINE

    $2,106.99
    A quality rocker arm kit is fundamental to maximizing valve lift and duration at the track. The 1.6:1 ratio in this SBC shaft rocker arm kit delivers the precise mechanical advantage needed for high-rpm stability and consistent valve actuation without...
    TDM2251-160/160
    SKU:
    TDM2251-160/160
    Availability:
    Ships Same Business Day
    Weight:
    16.33 LBS
    MFG Part #:
    2251-160/160
    $2,106.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2,106.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio TDM2251-160/150

    SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio 2251-160/150

    T AND D MACHINE

    $2,106.99
    Maximize your Small Block Chevy's valve lift and duration with a precision-engineered rocker arm kit that delivers consistent, reliable performance on the track. The 1.6/1.5 ratio design increases valve actuation while maintaining the mechanical...
    TDM2251-160/150
    SKU:
    TDM2251-160/150
    Availability:
    Ships Same Business Day
    Weight:
    16.30 LBS
    MFG Part #:
    2251-160/150
    Qty in Cart: 0
    Quantity:
    Price:
    $2,106.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio TDM2150-160/150

    SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio 2150-160/150

    T AND D MACHINE

    $2,107.99
    Rocker arm geometry directly impacts valve lift and duration, making your choice critical for peak engine performance. This shaft-mount kit delivers a 1.6/1.5 ratio that optimizes valve actuation across the RPM band while maintaining reliability under...
    TDM2150-160/150
    SKU:
    TDM2150-160/150
    Availability:
    Ships Same Business Day
    Weight:
    16.40 LBS
    MFG Part #:
    2150-160/150
    $2,107.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2,107.99
    Subtotal:
  • SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio TDM2144-160/150

    SBC Shaft Rocker Arm Kit - 1.6/1.5 Ratio 2144-160/150

    T AND D MACHINE

    $2,199.99
    Rocker arm geometry directly impacts valve timing, lift, and overall engine efficiency—and this shaft-mount kit delivers the precision you need for consistent performance across your entire valvetrain. The 1.6/1.5 ratio provides the mechanical advantage...
    TDM2144-160/150
    SKU:
    TDM2144-160/150
    Availability:
    Ships Same Business Day
    Weight:
    16.35 LBS
    MFG Part #:
    2144-160/150
    Qty in Cart: 0
    Quantity:
    Price:
    $2,199.99
    Subtotal:
  • SBF Sport Comp Shaft R/A Kit 1.60/1.60 Ratio TDM10020-160/160

    SBF Sport Comp Shaft R/A Kit 1.60/1.60 Ratio 10020-160/160

    T AND D MACHINE

    $1,437.99
    If you're building a high-revving Small Block Ford and need consistent valve actuation across the RPM band, a quality rocker arm kit is non-negotiable. The SBF Sport Comp Shaft R/A Kit delivers the mechanical advantage and reliability that separates...
    TDM10020-160/160
    SKU:
    TDM10020-160/160
    Availability:
    Ships Same Business Day
    Weight:
    16.01 LBS
    MFG Part #:
    10020-160/160
    $1,437.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1,437.99
    Subtotal:
  • SBC 220 Sport Comp Shaft R/A Kit 1.60/1.60 Ratio TDM10001-160/160

    SBC 220 Sport Comp Shaft R/A Kit 1.60/1.60 Ratio 10001-160/160

    T AND D MACHINE

    $1,439.99
    If you're building a high-revving small block Chevy that demands reliable valve actuation and consistent lift, this rocker arm kit delivers the precision geometry and durability required for sustained performance. The 1.60:1 ratio provides the mechanical...
    TDM10001-160/160
    SKU:
    TDM10001-160/160
    Availability:
    Ships Same Business Day
    Weight:
    16.40 LBS
    MFG Part #:
    10001-160/160
    $1,439.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1,439.99
    Subtotal:
  • SBC 220 Sport Comp Shaft R/A Kit 1.60/1.50 Ratio TDM10001-160/150

    SBC 220 Sport Comp Shaft R/A Kit 1.60/1.50 Ratio 10001-160/150

    T AND D MACHINE

    $1,419.99
    If you're building a high-revving Small Block Chevy engine, rocker arm ratio directly impacts valve lift and duration—and this SportComp shaft-mount kit delivers the mechanical advantage you need for aggressive cam profiles. The 1.60/1.50 ratio with full...
    TDM10001-160/150
    SKU:
    TDM10001-160/150
    Availability:
    Ships Same Business Day
    Weight:
    16.40 LBS
    MFG Part #:
    10001-160/150
    $1,419.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1,419.99
    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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