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
  • SBC 4340 Forged Compstar Crank 3.750 Stroke CALSAJ213-CS

    SBC 4340 Forged Compstar Crank 3.750 Stroke SAJ-213-CS

    CALLIES

    $1,029.00
    A forged crankshaft is the foundation of any reliable, high-rpm Small Block Chevy build. The Compstar 4340 forged crank delivers the strength and precision needed for sustained performance, whether you're building a street engine or a competition...
    CALSAJ213-CS
    SKU:
    CALSAJ213-CS
    Availability:
    Ships Same Business Day
    Weight:
    55.30 LBS
    MFG Part #:
    SAJ213-CS
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank - 3.750 Stroke CALSAJ113-CS

    SBC 4340 Forged Compstar Crank - 3.750 Stroke SAJ-113-CS

    CALLIES

    $1,029.00
    A forged 4340 steel crankshaft is the foundation of any high-revving Small Block Chevy engine—it's where power generation begins. The Compstar design delivers proven reliability in both street and competition applications, with the internal balance...
    CALSAJ113-CS
    SKU:
    CALSAJ113-CS
    Availability:
    Ships Same Business Day
    Weight:
    55.45 LBS
    MFG Part #:
    SAJ113-CS
    $1,029.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank - 3.750 Stroke CALSAJ113-CC

    SBC 4340 Forged Compstar Crank - 3.750 Stroke SAJ113-CC

    CALLIES

    $1,238.00
    A quality crankshaft is the foundation of any reliable high-performance engine build, and this forged 4340 Compstar crank delivers the strength and precision you need for consistent power delivery and durability under load. The 3.750-inch stroke is a...
    CALSAJ113-CC
    SKU:
    CALSAJ113-CC
    Availability:
    Ships Same Business Day
    Weight:
    48.15 LBS
    MFG Part #:
    SAJ113-CC
    Qty in Cart: 0
    Quantity:
    Price:
    $1,238.00
    Subtotal:
  • SBC 4340 Forged Magnum Crank - 3.500 Stroke CALSAG14A-MG

    SBC 4340 Forged Magnum Crank - 3.500 Stroke SAG14A-MG

    CALLIES

    $3,184.00
    Building a solid foundation for your Small Block Chevy engine starts with a reliable crankshaft that can handle sustained high RPM and aggressive boost levels. The SBC 4340 Forged Magnum Crank delivers the strength and precision you need to maximize...
    CALSAG14A-MG
    SKU:
    CALSAG14A-MG
    Availability:
    Ships Same Business Day
    Weight:
    51.95 LBS
    MFG Part #:
    SAG14A-MG
    $3,184.00
    Qty in Cart: 0
    Quantity:
    Price:
    $3,184.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank - 3.500 Stroke CALSAG143-CM

    SBC 4340 Forged Compstar Crank - 3.500 Stroke SAG143-CM

    CALLIES

    $1,029.00
    If you're building a high-performance small block Chevy engine, your crankshaft is the foundation of reliability and power output. The SBC 4340 Forged Compstar Crank delivers the stroke and strength needed to handle aggressive cam profiles, forced...
    CALSAG143-CM
    SKU:
    CALSAG143-CM
    Availability:
    Ships Same Business Day
    Weight:
    51.45 LBS
    MFG Part #:
    SAG143-CM
    $1,029.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank 3.500 Stroke CALSAG143-CC

    SBC 4340 Forged Compstar Crank 3.500 Stroke SAG143-CC

    CALLIES

    $1,238.00
    A forged 4340 steel crankshaft is the foundation of any reliable high-performance small block Chevy engine—it resists fatigue cracking under sustained boost and high RPM loads far better than cast alternatives. The Compstar Comet's 3.500" stroke gives...
    CALSAG143-CC
    SKU:
    CALSAG143-CC
    Availability:
    Ships Same Business Day
    Weight:
    46.50 LBS
    MFG Part #:
    SAG143-CC
    $1,238.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,238.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank - 3.500 Stroke CALSAG113-CM

    SBC 4340 Forged Compstar Crank - 3.500 Stroke SAG-113-CM

    CALLIES

    $1,029.00
    A quality forged crankshaft is the backbone of any reliable small block Chevy engine build. The SBC 4340 Forged Compstar Crank delivers the strength and precision needed for sustained high-RPM performance, whether you're building a street engine or...
    CALSAG113-CM
    SKU:
    CALSAG113-CM
    Availability:
    Ships Same Business Day
    Weight:
    23.86 LBS
    MFG Part #:
    SAG113-CM
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC 4340 Forged Compstar Crank 3.480 Stroke CALSAF113-CM

    SBC 4340 Forged Compstar Crank 3.480 Stroke SAF-113-CM

    CALLIES

    $1,029.00
    A quality crankshaft is the foundation of any reliable small block Chevy engine build—it's where power generation begins. The SBC 4340 Forged Compstar Crank delivers the durability and precision you need for consistent performance, whether you're...
    CALSAF113-CM
    SKU:
    CALSAF113-CM
    Availability:
    Ships Same Business Day
    Weight:
    51.20 LBS
    MFG Part #:
    SAF113-CM
    $1,029.00
    Qty in Cart: 0
    Quantity:
    Price:
    $1,029.00
    Subtotal:
  • SBC Forged H-Beam Rods 6.250/2.100 CALCSA6250DS2A2AH

    SBC Forged H-Beam Rods 6.250/2.100 CSA6250DS2A2AH

    CALLIES

    $784.00
    When you're building a Small Block Chevy engine that needs to handle sustained high RPM loads, factory connecting rods simply won't cut it. These SBC Forged H-Beam Rods deliver the strength and reliability required for serious performance...
    CALCSA6250DS2A2AH
    SKU:
    CALCSA6250DS2A2AH
    Availability:
    Ships Same Business Day
    Weight:
    12.55 LBS
    MFG Part #:
    CSA6250DS2A2AH
    $784.00
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • SBC Forged H-Beam Rods - 6.200/2.100 CALCSA6200DS2A2AH

    SBC Forged H-Beam Rods - 6.200/2.100 CSA6200DS2A2AH

    CALLIES

    $784.00
    If you're building a Small Block Chevy engine that needs to survive high RPM loads and sustained power delivery, forged H-beam connecting rods are non-negotiable. These Compstar rods deliver the strength-to-weight ratio that separates reliable...
    CALCSA6200DS2A2AH
    SKU:
    CALCSA6200DS2A2AH
    Availability:
    Ships Same Business Day
    Weight:
    12.41 LBS
    MFG Part #:
    CSA6200DS2A2AH
    $784.00
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • SBC Forged H-Beam Rods - 6.000/2.100 CALCSA6000DS2A2AH

    SBC Forged H-Beam Rods - 6.000/2.100 CSA6000DS2A2AH

    CALLIES

    $784.00
    If you're building a high-rpm Small Block Chevy engine that demands reliability under extreme loads, forged H-beam connecting rods are non-negotiable. These Compstar rods deliver the strength-to-weight ratio needed for sustained boost, nitrous, or...
    CALCSA6000DS2A2AH
    SKU:
    CALCSA6000DS2A2AH
    Availability:
    Ships Same Business Day
    Weight:
    12.21 LBS
    MFG Part #:
    CSA6000DS2A2AH
    $784.00
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • SBC Forged H-Beam Rods - 6.000/2.000 CALCSA6000CS2A2AH

    SBC Forged H-Beam Rods - 6.000/2.000 CSA6000CS2A2AH

    CALLIES

    $784.00
    Building a bulletproof small block Chevy engine demands connecting rods that won't fail under sustained boost, high RPM, or repeated abuse. Compstar's forged H-beam rods deliver the strength and precision required for forced induction applications,...
    CALCSA6000CS2A2AH
    SKU:
    CALCSA6000CS2A2AH
    Availability:
    Ships Same Business Day
    Weight:
    11.73 LBS
    MFG Part #:
    CSA6000CS2A2AH
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • SBC Forged H-Beam Rods - 6.000/1.888 CALCSA6000AS2A0AH

    SBC Forged H-Beam Rods - 6.000/1.888 CSA6000AS2A0AH

    CALLIES

    $784.00
    If you're building or rebuilding a Small Block Chevy engine that sees sustained RPM or boost, connecting rod strength directly impacts reliability and power delivery. Compstar's forged H-beam design handles the stress of high-rev and forced-induction...
    CALCSA6000AS2A0AH
    SKU:
    CALCSA6000AS2A0AH
    Availability:
    Ships Same Business Day
    Weight:
    10.54 LBS
    MFG Part #:
    CSA6000AS2A0AH
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • SBC Forged H-Beam Rods - 5.700/2.100 CALCSA5700DS2A2AH

    SBC Forged H-Beam Rods - 5.700/2.100 CSA5700DS2A2AH

    CALLIES

    $784.00
    If you're building a high-rpm Small Block Chevy engine, connecting rod failure isn't an option—it's a catastrophe. These SBC Forged H-Beam Rods deliver the strength and reliability needed to handle sustained boost, nitrous, or aggressive...
    CALCSA5700DS2A2AH
    SKU:
    CALCSA5700DS2A2AH
    Availability:
    Ships Same Business Day
    Weight:
    12.02 LBS
    MFG Part #:
    CSA5700DS2A2AH
    Qty in Cart: 0
    Quantity:
    Price:
    $784.00
    Subtotal:
  • Brodix 11/32 Manganese Valve Guide 2.000" Long 0.547" OD SHC.54711/32M

    Brodix 11/32 Manganese Valve Guide 2.000" Long 0.547" OD SHC.54711/32M

    BRODIX

    $20.49
    Valve guide wear is one of the most common culprits behind oil consumption and unstable idle in high-performance engines. The Brodix 11/32 Manganese Valve Guide delivers the precision fit and material durability you need for reliable operation, whether...
    BROSHC.54711/32M
    SKU:
    BROSHC.54711/32M
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    SHC .547 11/32 M
    $20.49
    Qty in Cart: 0
    Quantity:
    Price:
    $20.49
    Subtotal:
  • 11/32 Valve Guide - Manganese BROSHC.54511/32M

    11/32 Valve Guide - Manganese SHC .545 11/32 M

    BRODIX

    $20.49
    Valve guides are critical to maintaining proper valve seat alignment and controlling oil consumption in high-performance engines. A precision-machined manganese guide ensures tight tolerances and extended service life under the thermal and mechanical...
    BROSHC.54511/32M
    SKU:
    BROSHC.54511/32M
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    SHC .545 11/32 M
    Qty in Cart: 0
    Quantity:
    Price:
    $20.49
    Subtotal:
  • Valve Guide  BROSH565-11/32P

    Valve Guide SH .565 11/32 P

    BRODIX

    $14.99
    Valve guides are critical to maintaining proper valve alignment and sealing—wear or misalignment here directly impacts combustion efficiency, oil consumption, and overall engine reliability. A precision bronze guide like this one ensures consistent valve...
    BROSH565-11/32P
    SKU:
    BROSH565-11/32P
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    SH .565 11/32 P
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • Valve Guide 5/16 .545 OD/.309 ID 2.000 Long BROSH.5455/16P

    Valve Guide 5/16 .545 OD/.309 ID 2.000 Long SH .545 5/16 P

    BRODIX

    $14.99
    Precision valve guides are critical for maintaining proper valve alignment, sealing, and longevity in high-performance engines. A worn or damaged valve guide causes excessive valve stem wear, oil consumption, and loss of compression—ultimately...
    BROSH.5455/16P
    SKU:
    BROSH.5455/16P
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MFG Part #:
    SH .545 5/16 P
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • Valve Guide 11/32 .545 OD/.340 ID 2.250 Long BROSH.54511/32PL

    Valve Guide 11/32 .545 OD/.340 ID 2.250 Long SH .545 11/32 PL

    BRODIX

    $14.99
    Precision valve guides are essential for maintaining proper valve alignment and minimizing wear in high-performance engines. A quality bronze guide like this one ensures consistent oil flow to critical valve stem areas while reducing friction and heat...
    BROSH.54511/32PL
    SKU:
    BROSH.54511/32PL
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    MFG Part #:
    SH .545 11/32 PL
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • Valve Guide  BROSH545-11/32P

    Valve Guide SH 545 11/32 P

    BRODIX

    $13.99
    Valve guides are critical to maintaining proper valve sealing and preventing excessive wear in high-performance engines. A precision-engineered bronze guide like the SH 545 11/32 P ensures consistent valve alignment, reduces oil consumption, and extends...
    BROSH545-11/32P
    SKU:
    BROSH545-11/32P
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    SH 545 11/32 P
    $13.99
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99
    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

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER