Select Your Ride

1
2
3

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
  • 3/8 Hi-Tech Pushrods - 7.900 Long COM7984-16

    Comp Cams 3/8 Hi-Tech Pushrods - 7.900 Long 7984-16

    COMP CAMS

    $234.95
    3/8 Hi-Tech Pushrods - 7.900 LongPushrodHi-Tech7.900 in Long3/8 in Diameter0.080 in Thick WallChromolySmall Block ChevySet of 16
    COM7984-16
    SKU:
    COM7984-16
    Availability:
    Ships Same Business Day
    Weight:
    2.92 LBS
    MFG Part #:
    7984-16
    $234.95
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • 3/8 Hi-Tech Pushrods - 8.000 Long COM7983-16

    Comp Cams 3/8 Hi-Tech Pushrods - 8.000 Long 7983-16

    COMP CAMS

    $221.95
    3/8 Hi-Tech Pushrods - 8.000 LongPushrodHi-Tech8.000 in Long3/8 in Diameter0.080 in Thick WallChromolySet of 16
    COM7983-16
    SKU:
    COM7983-16
    Availability:
    Ships Same Business Day
    Weight:
    2.90 LBS
    MFG Part #:
    7983-16
    $221.95
    Qty in Cart: 0
    Quantity:
    Price:
    $221.95
    Subtotal:
  • 3/8 Hi-Tech Pushrods - 7.850 Long COM7980-16

    Comp Cams 3/8 Hi-Tech Pushrods - 7.850 Long 7980-16

    COMP CAMS

    $251.95
    3/8 Hi-Tech Pushrods - 7.850 LongPushrodHi-Tech7.850 in Long3/8 in Diameter0.080 in Thick WallChromolySet of 16
    COM7980-16
    SKU:
    COM7980-16
    Availability:
    Ships Same Business Day
    Weight:
    2.88 LBS
    MFG Part #:
    7980-16
    $251.95
    Qty in Cart: 0
    Quantity:
    Price:
    $251.95
    Subtotal:
  • 5/16 Hi-Tech Pushrods - 7.850 Long COM7974-16

    Comp Cams 5/16 Hi-Tech Pushrods - 7.850 Long 7974-16

    COMP CAMS

    $195.95
    5/16 Hi-Tech Pushrods - 7.850 LongPushrodHi-Tech7.850 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block ChevySet of 16
    COM7974-16
    SKU:
    COM7974-16
    Availability:
    Ships Same Business Day
    Weight:
    2.31 LBS
    MFG Part #:
    7974-16
    $195.95
    Qty in Cart: 0
    Quantity:
    Price:
    $195.95
    Subtotal:
  • 5/16 Hi-Tech Pushrods - 7.800 Long COM7972-16

    Comp Cams 5/16 Hi-Tech Pushrods - 7.800 Long 7972-16

    COMP CAMS

    $191.95
    5/16 Hi-Tech Pushrods - 7.800 LongPushrodHi-Tech7.800 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block ChevySet of 16
    COM7972-16
    SKU:
    COM7972-16
    Availability:
    Ships Same Business Day
    Weight:
    2.23 LBS
    MFG Part #:
    7972-16
    $191.95
    Qty in Cart: 0
    Quantity:
    Price:
    $191.95
    Subtotal:
  • 5/16 Hi-Tech Pushrods - 7.750 Long COM7970-16

    Comp Cams 5/16 Hi-Tech Pushrods - 7.750 Long 7970-16

    COMP CAMS

    $191.95
    5/16 Hi-Tech Pushrods - 7.750 LongPushrodHi-Tech7.750 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block ChevySet of 16
    COM7970-16
    SKU:
    COM7970-16
    Availability:
    Ships Same Business Day
    Weight:
    2.10 LBS
    MFG Part #:
    7970-16
    $191.95
    Qty in Cart: 0
    Quantity:
    Price:
    $191.95
    Subtotal:
  • 5/16 Hi-Tech Pushrods - 8.200 Long COM7966-16

    Comp Cams 5/16 Hi-Tech Pushrods - 8.200 Long 7966-16

    COMP CAMS

    $195.95
    5/16 Hi-Tech Pushrods - 8.200 LongPushrodHi-Tech8.200 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block FordSet of 16
    COM7966-16
    SKU:
    COM7966-16
    Availability:
    Ships Same Business Day
    Weight:
    2.38 LBS
    MFG Part #:
    7966-16
    $195.95
    Qty in Cart: 0
    Quantity:
    Price:
    $195.95
    Subtotal:
  • 5/16 Hi-Tech Pushrods - 8.150 Long COM7965-16

    Comp Cams 5/16 Hi-Tech Pushrods - 8.150 Long 7965-16

    COMP CAMS

    $191.95
    5/16 Hi-Tech Pushrods - 8.150 LongPushrodHi-Tech8.150 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block FordSet of 16
    COM7965-16
    SKU:
    COM7965-16
    Availability:
    Ships Same Business Day
    Weight:
    2.34 LBS
    MFG Part #:
    7965-16
    $191.95
    Qty in Cart: 0
    Quantity:
    Price:
    $191.95
    Subtotal:
  • 5/16 Hi-Tech Pushrods - 7.700 Long COM7963-16

    Comp Cams 5/16 Hi-Tech Pushrods - 7.700 Long 7963-16

    COMP CAMS

    $191.95
    5/16 Hi-Tech Pushrods - 7.700 LongPushrodHi-Tech7.700 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block ChevySet of 16
    COM7963-16
    SKU:
    COM7963-16
    Availability:
    Ships Same Business Day
    Weight:
    2.23 LBS
    MFG Part #:
    7963-16
    $191.95
    Qty in Cart: 0
    Quantity:
    Price:
    $191.95
    Subtotal:
  • 3/8 Hi-Tech Pushrods - 7.800 Long COM7913-16

    Comp Cams 3/8 Hi-Tech Pushrods - 7.800 Long 7913-16

    COMP CAMS

    $222.95
    3/8 Hi-Tech Pushrods - 7.800 LongPushrodHi-Tech7.800 in Long3/8 in Diameter0.080 in Thick WallChromolySmall Block ChevySet of 16
    COM7913-16
    SKU:
    COM7913-16
    Availability:
    Ships Same Business Day
    Weight:
    2.84 LBS
    MFG Part #:
    7913-16
    $222.95
    Qty in Cart: 0
    Quantity:
    Price:
    $222.95
    Subtotal:
  • 5/16 Hi-Energy Pushrods - 8.152 Long COM7835-16

    Comp Cams 5/16 Hi-Energy Pushrods - 8.152 Long 7835-16

    COMP CAMS

    $45.95
    5/16 Hi-Energy Pushrods - 8.152 LongPushrodHigh Energy8.152 in Long5/16 in ODSteelSmall Block FordSet of 16
    COM7835-16
    SKU:
    COM7835-16
    Availability:
    Ships Same Business Day
    Weight:
    2.07 LBS
    MFG Part #:
    7835-16
    $45.95
    Qty in Cart: 0
    Quantity:
    Price:
    $45.95
    Subtotal:
  • 5/16 Hi-Energy Pushrods - 6.881 Long COM7831-16

    Comp Cams 5/16 Hi-Energy Pushrods - 6.881 Long 7831-16

    COMP CAMS

    $44.95
    5/16 Hi-Energy Pushrods - 6.881 LongPushrodHigh Energy6.881 in Long5/16 in ODSteelSmall Block FordSet of 16
    COM7831-16
    SKU:
    COM7831-16
    Availability:
    Ships Same Business Day
    Weight:
    1.76 LBS
    MFG Part #:
    7831-16
    $44.95
    Qty in Cart: 0
    Quantity:
    Price:
    $44.95
    Subtotal:
  • 5/16 Hi-Energy Pushrods - 7.794 Long COM7812-16

    Comp Cams 5/16 Hi-Energy Pushrods - 7.794 Long 7812-16

    COMP CAMS

    $44.95
    5/16 Hi-Energy Pushrods - 7.794 LongPushrodHigh Energy7.794 in Long5/16 in ODSteelSmall Block Chevy / AMC V8Set of 16
    COM7812-16
    SKU:
    COM7812-16
    Availability:
    Ships Same Business Day
    Weight:
    1.96 LBS
    MFG Part #:
    7812-16
    $44.95
    Qty in Cart: 0
    Quantity:
    Price:
    $44.95
    Subtotal:
  • 5/16 Magnum Pushrods - 8.000 Long COM7695-16

    Comp Cams 5/16 Magnum Pushrods - 8.000 Long 7695-16

    COMP CAMS

    $154.95
    5/16 Magnum Pushrods - 8.000 LongPushrodMagnum8.000 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block Chevy / GM V6Set of 16
    COM7695-16
    SKU:
    COM7695-16
    Availability:
    Ships Same Business Day
    Weight:
    2.32 LBS
    MFG Part #:
    7695-16
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • 5/16 Magnum Pushrods - 7.900 Long COM7693-16

    Comp Cams 5/16 Magnum Pushrods - 7.900 Long 7693-16

    COMP CAMS

    $154.95
    5/16 Magnum Pushrods - 7.900 LongPushrodMagnum7.900 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block Chevy / GM V6Set of 16
    COM7693-16
    SKU:
    COM7693-16
    Availability:
    Ships Same Business Day
    Weight:
    2.31 LBS
    MFG Part #:
    7693-16
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Steel Valve Spring Retainer- 7 Degree COM768-16

    Comp Cams Steel Valve Spring Retainer- 7 Degree 768-16

    COMP CAMS

    $85.95
    Steel Valve Spring Retainer- 7 DegreeValve Spring Retainer7 Degree1.030 in / 0.690 in OD Steps1.437-1.500 in Dual SpringSteelSet of 16
    COM768-16
    SKU:
    COM768-16
    Availability:
    Ships Same Business Day
    Weight:
    1.26 LBS
    MFG Part #:
    768-16
    $85.95
    Qty in Cart: 0
    Quantity:
    Price:
    $85.95
    Subtotal:
  • Super Lock Valve Spring Retainer Steel-10 Degree COM750-16

    Comp Cams Super Lock Valve Spring Retainer Steel-10 Degree 750-16

    COMP CAMS

    $85.95
    Super Lock Valve Spring Retainer Steel-10 DegreeValve Spring RetainerSuper Lock10 Degree0.870 in / 0.735 in OD Steps1.250 in Dual SpringSteelSet of 16
    COM750-16
    SKU:
    COM750-16
    Availability:
    Ships Same Business Day
    Weight:
    0.92 LBS
    MFG Part #:
    750-16
    $85.95
    Qty in Cart: 0
    Quantity:
    Price:
    $85.95
    Subtotal:
  • Super Lock Valve Spring Retainer Steel-10 Degree COM748-16

    Comp Cams Super Lock Valve Spring Retainer Steel-10 Degree 748-16

    COMP CAMS

    $85.95
    Super Lock Valve Spring Retainer Steel-10 DegreeValve Spring RetainerSuper Lock10 Degree1.095 in / 0.710 in OD Steps1.500-1.550 in Dual SpringSteelSet of 16
    COM748-16
    SKU:
    COM748-16
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    MFG Part #:
    748-16
    $85.95
    Qty in Cart: 0
    Quantity:
    Price:
    $85.95
    Subtotal:
  • 5/16 Magnum Pushrod Ford 351w 1969-78 8.150 Long COM7472-16

    Comp Cams 5/16 Magnum Pushrod Ford 351w 1969-78 8.150 Long 7472-16

    COMP CAMS

    $154.95
    5/16 Magnum Pushrod Ford 351w 1969-78 8.150 LongPushrodMagnum8.150 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block Ford / Chevy / GM V6Set of 16
    COM7472-16
    SKU:
    COM7472-16
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    MFG Part #:
    7472-16
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • Super Lock Valve Spring Retainer Steel-10 Degree COM747-16

    Comp Cams Super Lock Valve Spring Retainer Steel-10 Degree 747-16

    COMP CAMS

    $85.95
    Super Lock Valve Spring Retainer Steel-10 DegreeValve Spring RetainerSuper Lock10 Degree1.050 in / 0.690 in OD Steps1.437-1.500 in Dual SpringSteelSet of 16
    COM747-16
    SKU:
    COM747-16
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    MFG Part #:
    747-16
    $85.95
    Qty in Cart: 0
    Quantity:
    Price:
    $85.95
    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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER