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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
  • On Sale
    Main Bearing Set - Calico Coated CLCMS429H

    Main Bearing Set - Calico Coated MS429H

    CALICO COATINGS

    MSRP: $223.99
    Now: $202.09
    Was: $223.99
    Engine longevity depends on bearing quality, and worn or inadequate main bearings accelerate catastrophic failure under high RPM and load. The MS429H Calico Coated set delivers reliable oil film retention and reduced wear rates, protecting your bottom...
    CLCMS429H
    SKU:
    CLCMS429H
    Availability:
    Ships Same Business Day
    Weight:
    1.23 LBS
    MFG Part #:
    MS429H
    MSRP: $223.99
    Now: $202.09
    Was: $223.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $223.99
    Now: $202.09
    Was: $223.99
    Subtotal:
  • Ford 90 Deg Remote Adapter CAN22-595

    Canton Ford 90 Deg Remote Adapter 22-595

    CANTON

    $108.00
    A remote oil filter adapter is essential for custom engine builds and forced induction setups where traditional filter mounting isn't feasible. The Canton 90-degree design lets you relocate your filter away from heat sources and tight engine bays,...
    CAN22-595
    SKU:
    CAN22-595
    Availability:
    Ships Same Business Day
    Weight:
    1.36 LBS
    MFG Part #:
    22-595
    $108.00
    Qty in Cart: 0
    Quantity:
    Price:
    $108.00
    Subtotal:
  • 289-302 Ford Windage Tray CAN20-930

    Canton 289-302 Ford Windage Tray 20-930

    CANTON

    $105.00
    A windage tray reduces oil churning losses in your small block Ford's crankcase by deflecting oil spray away from rotating components, directly improving horsepower and engine efficiency. By minimizing parasitic drag on the crankshaft, you'll see...
    CAN20-930
    SKU:
    CAN20-930
    Availability:
    Ships Same Business Day
    Weight:
    2.75 LBS
    MFG Part #:
    20-930
    $105.00
    Qty in Cart: 0
    Quantity:
    Price:
    $105.00
    Subtotal:
  • SBC 4340 Forged Magnum Crank - 3.335 Stroke CALSAX14A-MG

    SBC 4340 Forged Magnum Crank - 3.335 Stroke SAX-14A-MG

    CALLIES

    $3,184.00
    A forged 4340 steel crankshaft is the foundation of any reliable high-performance small block Chevy engine—it's engineered to handle sustained boost, aggressive cam profiles, and high RPM loads without deflection or failure. The SAX-14A-MG's internal...
    CALSAX14A-MG
    SKU:
    CALSAX14A-MG
    Availability:
    Ships Same Business Day
    Weight:
    23.76 LBS
    MFG Part #:
    SAX14A-MG
    Qty in Cart: 0
    Quantity:
    Price:
    $3,184.00
    Subtotal:
  • SBC 4340 Forged Magnum Crank - 4.000 Stroke CALSAO11A-MG

    SBC 4340 Forged Magnum Crank - 4.000 Stroke SAO11A-MG

    CALLIES

    $3,510.00
    If you're building a high-revving small block Chevy engine, your crankshaft needs to handle the punishment of sustained performance without flex or failure. The SBC 4340 Forged Magnum Crank delivers the structural integrity and precision geometry...
    CALSAO11A-MG
    SKU:
    CALSAO11A-MG
    Availability:
    Ships Same Business Day
    Weight:
    53.50 LBS
    MFG Part #:
    SAO11A-MG
    Qty in Cart: 0
    Quantity:
    Price:
    $3,510.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank - 4.000 Stroke CALSAO113-CS

    SBC 4340 Forged Compstar Crank - 4.000 Stroke SAO-113-CS

    CALLIES

    $1,029.00
    A forged crankshaft is the foundation of any high-revving Small Block Chevy engine build—it's the component that converts combustion force into rotational power, and it needs to withstand extreme stress without failure. The Compstar 4340 forged crank...
    CALSAO113-CS
    SKU:
    CALSAO113-CS
    Availability:
    Ships Same Business Day
    Weight:
    56.00 LBS
    MFG Part #:
    SAO113-CS
    $1,029.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank - 3.875 Stroke CALSAM113-CS

    SBC 4340 Forged Compstar Crank - 3.875 Stroke SAM-113-CS

    CALLIES

    $1,029.00
    A forged crankshaft is the backbone of any high-revving Small Block Chevy engine—it needs to withstand extreme loads without flex or failure. The SBC 4340 Forged Compstar Crank delivers the strength and reliability required for serious racing and...
    CALSAM113-CS
    SKU:
    CALSAM113-CS
    Availability:
    Ships Same Business Day
    Weight:
    56.00 LBS
    MFG Part #:
    SAM113-CS
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC 4340 Forged Magnum Crank - 3.750 Stroke CALSAJ11A-MG

    SBC 4340 Forged Magnum Crank - 3.750 Stroke SAJ11A-MG

    CALLIES

    $3,184.00
    If you're building a high-output Small Block Chevy engine, your crankshaft needs to handle sustained RPM and cylinder pressure without compromise. The SBC 4340 Forged Magnum Crank delivers the strength and precision required for serious racing and forced...
    CALSAJ11A-MG
    SKU:
    CALSAJ11A-MG
    Availability:
    Ships Same Business Day
    Weight:
    53.00 LBS
    MFG Part #:
    SAJ11A-MG
    $3,184.00
    Qty in Cart: 0
    Quantity:
    Price:
    $3,184.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank 3.625 Stroke CALSAH113-CM

    SBC 4340 Forged Compstar Crank 3.625 Stroke SAH113-CM

    CALLIES

    $854.00
    A quality crankshaft is the foundation of any reliable high-performance small block Chevy engine, and this Compstar 4340 forged crank delivers the strength and precision you need for consistent power delivery across the RPM band. Built from premium 4340...
    CALSAH113-CM
    SKU:
    CALSAH113-CM
    Availability:
    Ships Same Business Day
    Weight:
    50.00 LBS
    MFG Part #:
    SAH113-CM
    Qty in Cart: 0
    Quantity:
    Price:
    $854.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank 3.480 Stroke CALSAF143-CC

    SBC 4340 Forged Compstar Crank 3.480 Stroke SAF143-CC

    CALLIES

    $1,238.00
    A forged 4340 steel crankshaft is the backbone of any serious small-block Chevy engine build, and the Compstar Crank delivers the strength and precision required for high-RPM performance and forced induction applications. This internally balanced design...
    CALSAF143-CC
    SKU:
    CALSAF143-CC
    Availability:
    Ships Same Business Day
    Weight:
    45.00 LBS
    MFG Part #:
    SAF143-CC
    Qty in Cart: 0
    Quantity:
    Price:
    $1,238.00
    Subtotal:
  • SBC Forged H-Beam Rods - 6.125/2.100 CALCSA6125DS2A2AH

    SBC Forged H-Beam Rods - 6.125/2.100 CSA6125DS2A2AH

    CALLIES

    $784.00
    When you're building a Small Block Chevy engine destined for the track or strip, your connecting rods are the critical link between power and reliability. These SBC Forged H-Beam Rods from Compstar deliver the strength and precision needed to handle...
    CALCSA6125DS2A2AH
    SKU:
    CALCSA6125DS2A2AH
    Availability:
    Ships Same Business Day
    Weight:
    12.30 LBS
    MFG Part #:
    CSA6125DS2A2AH
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • SBC Valve Seat - Intake 2.131 OD/1.845 ID/.312 BROP2-1315/16LID

    SBC Valve Seat - Intake 2.131 OD/1.845 ID/.312 P 2.131 5/16 LID

    BRODIX

    $24.99
    A properly seated intake valve is fundamental to cylinder head performance and engine reliability. Whether you're rebuilding a small-block Chevy or restoring a classic, this iron valve seat ensures precise sealing that prevents compression loss and...
    BROP2-1315/16LID
    SKU:
    BROP2-1315/16LID
    Availability:
    Ships Same Business Day
    Weight:
    0.07 LBS
    MFG Part #:
    P 2.131 5/16 LID
    $24.99
    Qty in Cart: 0
    Quantity:
    Price:
    $24.99
    Subtotal:
  • 1.600 Exhaust Valve - 4.965 OAL 11/32 BROBR81021

    1.600 Exhaust Valve - 4.965 OAL 11/32 BR 81021

    BRODIX

    $37.99
    When you're building or rebuilding a Small Block Chevy engine for reliable high-RPM performance, exhaust valve quality directly impacts power delivery and engine longevity. This 1.600 stainless steel exhaust valve is precision-engineered to handle the...
    BROBR81021
    SKU:
    BROBR81021
    Availability:
    Ships Same Business Day
    Weight:
    0.23 LBS
    MFG Part #:
    BR 81021
    $37.99
    Qty in Cart: 0
    Quantity:
    Price:
    $37.99
    Subtotal:
  • 2.080 Intake Valve - 4.965 OAL 11/32 BROBR81019

    2.080 Intake Valve - 4.965 OAL 11/32 BR 81019

    BRODIX

    $37.99
    If you're building or rebuilding a Small Block Chevy engine, intake valve quality directly impacts combustion efficiency and overall engine reliability. This 2.080" stainless steel intake valve is engineered to precise OEM specifications, ensuring proper...
    BROBR81019
    SKU:
    BROBR81019
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    MFG Part #:
    BR 81019
    $37.99
    Qty in Cart: 0
    Quantity:
    Price:
    $37.99
    Subtotal:
  • 2.080 Intake Valve - 5.065 OAL 11/32 BROBR60029

    2.080 Intake Valve - 5.065 OAL 11/32 BR 60029

    BRODIX

    $46.99
    A precision intake valve is fundamental to maximizing airflow and combustion efficiency in any small block Chevy engine build. This stainless steel valve delivers consistent performance across high-RPM applications while resisting thermal stress and...
    BROBR60029
    SKU:
    BROBR60029
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    MFG Part #:
    BR 60029
    $46.99
    Qty in Cart: 0
    Quantity:
    Price:
    $46.99
    Subtotal:
  • Valve Guide 11/32 .545 OD/.340 ID 3.000 Long BROBH.54511/32PLI

    Valve Guide 11/32 .545 OD/.340 ID 3.000 Long BH .545 11/32 PLI

    BRODIX

    $16.99
    Precision valve guides are critical for maintaining proper valve alignment and sealing integrity in high-performance engines. A worn or misaligned guide causes excessive oil consumption, reduced compression, and accelerated valve wear—all of which...
    BROBH.54511/32PLI
    SKU:
    BROBH.54511/32PLI
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MFG Part #:
    BH .545 11/32 PLI
    $16.99
    Qty in Cart: 0
    Quantity:
    Price:
    $16.99
    Subtotal:
  • SBC 225cc D/S Heads 64cc 2.08/1.60 Assembled BRO1321003

    SBC 225cc D/S Heads 64cc 2.08/1.60 Assembled 1321003

    BRODIX

    $2,336.99
    If you're building a high-flow SBC engine, these assembled cylinder heads deliver the airflow and port efficiency needed for serious power gains. The 225cc intake runners paired with a 64cc combustion chamber provide an optimal balance of low-end torque...
    BRO1321003
    SKU:
    BRO1321003
    Availability:
    Ships Same Business Day
    Weight:
    65.00 LBS
    MFG Part #:
    1321003
    $2,336.99
    Qty in Cart: 0
    Quantity:
    Price:
    $2,336.99
    Subtotal:
  • SBC 225cc D/S Heads 68cc 2.08/1.60 Bare BRO1320000

    SBC 225cc D/S Heads 68cc 2.08/1.60 Bare 1320000

    BRODIX

    $1,422.99
    If you're building a high-flowing Small Block Chevy engine, cylinder head choice directly determines your power ceiling. These SBC 225cc D/S heads deliver the intake and exhaust flow characteristics needed for serious naturally-aspirated performance,...
    BRO1320000
    SKU:
    BRO1320000
    Availability:
    Ships Same Business Day
    Weight:
    51.00 LBS
    MFG Part #:
    1320000
    $1,422.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1,422.99
    Subtotal:
  • SBC 227cc Track 1 KC CNC Ported Heads 2.08/1.60 BRO1008104

    SBC 227cc Track 1 KC CNC Ported Heads 2.08/1.60 1008104

    BRODIX

    $3,749.99
    If you're serious about track performance, cylinder head flow is where power gets made. These SBC 227cc heads deliver CNC-ported precision that maximizes intake and exhaust efficiency across the RPM range, giving you the breathing room to extract every...
    BRO1008104
    SKU:
    BRO1008104
    Availability:
    Ships Same Business Day
    Weight:
    65.30 LBS
    MFG Part #:
    1008104
    $3,749.99
    Qty in Cart: 0
    Quantity:
    Price:
    $3,749.99
    Subtotal:
  • SBC 5.7in Steel Harmonic Balancer - SFI BHJCH-IBS-6-C

    SBC 5.7in Steel Harmonic Balancer - SFI CH-IBS-6-C

    BHJ DAMPERS

    $469.99
    Harmonic balancers are critical to engine longevity—they absorb destructive vibrations that can crack cranks and damage bearings over time. This SBC balancer combines a steel construction with SFI 18.1 certification, ensuring reliable performance whether...
    BHJCH-IBS-6-C
    SKU:
    BHJCH-IBS-6-C
    Availability:
    Ships Same Business Day
    Weight:
    4.60 LBS
    MFG Part #:
    CH-IBS-6-C
    Qty in Cart: 0
    Quantity:
    Price:
    $469.99
    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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