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 R/Z Roller Lifters  ISK1271-LSH

    Isky SBC R/Z Roller Lifters 1271LSH

    ISKY CAMS

    $914.99
    Isky's SBC R/Z Roller Lifters deliver the precise valve actuation and reduced friction your small block demands when pushing hard on the track or dyno. The mechanical roller design minimizes parasitic losses while the vertical link bar geometry ensures...
    ISK1271-LSH
    SKU:
    ISK1271-LSH
    Availability:
    Ships Same Business Day
    Weight:
    4.86 LBS
    MFG Part #:
    1271LSH
    $914.99
    Qty in Cart: 0
    Quantity:
    Price:
    $914.99
    Subtotal:
  • SBC Roller Lifter Set EZ-Max Series ISK1271LO185EZMAX

    Isky SBC Roller Lifter Set EZ-Max Series 1271LO185EZMAX

    ISKY CAMS

    $1,439.99
    Mechanical roller lifters are essential for maximizing valve lift accuracy and reducing parasitic friction losses in high-RPM applications. The Isky EZ-Max Series delivers the reliability and precision you need to push your Small Block Chevy to its...
    ISK1271LO185EZMAX
    SKU:
    ISK1271LO185EZMAX
    Availability:
    Ships Same Business Day
    Weight:
    5.35 LBS
    MFG Part #:
    1271LO185EZMAX
    Qty in Cart: 0
    Quantity:
    Price:
    $1,439.99
    Subtotal:
  • SBC R/Z Roller Lifters - .185in Offset ISK1271-LO-185

    Isky SBC R/Z Roller Lifters - .185in Offset 1271LO185

    ISKY CAMS

    $946.99
    Roller lifters are essential for maximizing valve train efficiency and reliability in high-RPM small block Chevy applications. The Isky R/Z design delivers superior durability and reduced friction compared to flat-tappet alternatives, making it the...
    ISK1271-LO-185
    SKU:
    ISK1271-LO-185
    Availability:
    Ships Same Business Day
    Weight:
    4.75 LBS
    MFG Part #:
    1271LO185
    $946.99
    Qty in Cart: 0
    Quantity:
    Price:
    $946.99
    Subtotal:
  • SBC Forged Domed Piston Set 4.040 Bore +6.26cc ICNIC793.040

    SBC Forged Domed Piston Set 4.040 Bore +6.26cc IC793.040

    ICON PISTONS

    $777.17
    Maximize compression and combustion efficiency in your small block Chevy with these premium forged pistons engineered for high-RPM stability and consistent performance. The domed design increases compression ratio while the forged construction delivers...
    ICNIC793.040
    SKU:
    ICNIC793.040
    Availability:
    Ships Same Business Day
    Weight:
    13.06 LBS
    MFG Part #:
    IC793.040
    $777.17
    Qty in Cart: 0
    Quantity:
    Price:
    $777.17
    Subtotal:
  • SBC Forged F/T Piston Set 4.040 Bore -4.86cc ICNIC792.040

    SBC Forged F/T Piston Set 4.040 Bore -4.86cc IC792.040

    ICON PISTONS

    $717.47
    If you're building a high-compression Small Block Chevy engine or refreshing a tired short block, quality pistons are non-negotiable. These forged F/T pistons deliver the strength and precision needed for forced induction and high-RPM applications, while...
    ICNIC792.040
    SKU:
    ICNIC792.040
    Availability:
    Ships Same Business Day
    Weight:
    12.43 LBS
    MFG Part #:
    IC792.040
    $717.47
    Qty in Cart: 0
    Quantity:
    Price:
    $717.47
    Subtotal:
  • SBC Forged F/T Piston Set 4.030 Bore -4.86cc ICNIC792.030

    SBC Forged F/T Piston Set 4.030 Bore -4.86cc IC792.030

    ICON PISTONS

    $717.47
    Building a high-compression Small Block Chevy engine demands pistons engineered for sustained peak performance and reliability. These forged units provide the strength to handle forced induction and nitrous applications while maintaining tight tolerances...
    ICNIC792.030
    SKU:
    ICNIC792.030
    Availability:
    Ships Same Business Day
    Weight:
    12.57 LBS
    MFG Part #:
    IC792.030
    $717.47
    Qty in Cart: 0
    Quantity:
    Price:
    $717.47
    Subtotal:
  • SBC T/S-3 4340 Forged Crank 3.750 Stroke HRCH403756012T

    SBC T/S-3 4340 Forged Crank 3.750 Stroke H403756012T

    HOWARDS RACING COMPONENTS

    $933.99
    Building a high-displacement small block or pushing your existing SBC to the limit requires a crankshaft engineered for sustained power and reliability. This 4340 forged crank delivers the stroke you need for increased displacement and torque while...
    HRCH403756012T
    SKU:
    HRCH403756012T
    Availability:
    Ships Same Business Day
    Weight:
    25.00 LBS
    MFG Part #:
    H403756012T
    Qty in Cart: 0
    Quantity:
    Price:
    $933.99
    Subtotal:
  • Dual Valve Springs - 1.437 HRC98441

    Dual Valve Springs - 1.437 98441

    HOWARDS RACING COMPONENTS

    $188.99
    If you're pushing your engine to the limit, valve spring performance is non-negotiable. These dual valve springs are engineered to handle the demands of high-RPM applications, delivering the spring rate and coil bind characteristics required for reliable...
    HRC98441
    SKU:
    HRC98441
    Availability:
    Ships Same Business Day
    Weight:
    4.17 LBS
    MFG Part #:
    98441
    $188.99
    Qty in Cart: 0
    Quantity:
    Price:
    $188.99
    Subtotal:
  • Single Valve Springs - 1.265 HRC98215

    Single Valve Springs - 1.265 98215

    HOWARDS RACING COMPONENTS

    $172.99
    Valve spring performance directly impacts your engine's ability to maintain precise valve timing under high RPM and boost conditions. These single valve springs with integral dampers deliver the 430 lb/in spring rate needed to prevent valve float while...
    HRC98215
    SKU:
    HRC98215
    Availability:
    Ships Same Business Day
    Weight:
    3.11 LBS
    MFG Part #:
    98215
    $172.99
    Qty in Cart: 0
    Quantity:
    Price:
    $172.99
    Subtotal:
  • Single Valve Springs - 1.250 HRC98214

    Single Valve Springs - 1.250 98214

    HOWARDS RACING COMPONENTS

    $68.99
    If you're building or refreshing a high-performance engine, valve spring selection directly impacts your RPM ceiling, reliability, and overall power delivery. These single valve springs are engineered for serious builders who need precise control over...
    HRC98214
    SKU:
    HRC98214
    Availability:
    Ships Same Business Day
    Weight:
    3.17 LBS
    MFG Part #:
    98214
    $68.99
    Qty in Cart: 0
    Quantity:
    Price:
    $68.99
    Subtotal:
  • Single Valve Springs - 1.265 HRC98213

    Single Valve Springs - 1.265 98213

    HOWARDS RACING COMPONENTS

    $140.99
    Valve spring performance directly impacts engine reliability under high RPM conditions—weak or unstable springs lead to valve float, timing loss, and potential catastrophic failure. These single valve springs deliver the consistent load and damping...
    HRC98213
    SKU:
    HRC98213
    Availability:
    Ships Same Business Day
    Weight:
    3.09 LBS
    MFG Part #:
    98213
    $140.99
    Qty in Cart: 0
    Quantity:
    Price:
    $140.99
    Subtotal:
  • Single Valve Springs - 1.265 HRC98212

    Single Valve Springs - 1.265 98212

    HOWARDS RACING COMPONENTS

    $85.99
    Valve spring selection directly impacts your engine's ability to maintain valve control under high RPM loads and aggressive cam profiles. These single valve springs deliver consistent 425 lb/in spring rate across the full range of motion, ensuring...
    HRC98212
    SKU:
    HRC98212
    Availability:
    Ships Same Business Day
    Weight:
    3.07 LBS
    MFG Part #:
    98212
    $85.99
    Qty in Cart: 0
    Quantity:
    Price:
    $85.99
    Subtotal:
  • Valve Spring Retainers - 10 Degree - 1.125 HRC97132

    Valve Spring Retainers - 10 Degree - 1.125 97132

    HOWARDS RACING COMPONENTS

    $81.99
    Valve spring retainers are critical to maintaining consistent valve control under high RPM conditions. These 10-degree retainers ensure proper spring geometry and load distribution, preventing valve float and catastrophic engine failure in forced...
    HRC97132
    SKU:
    HRC97132
    Availability:
    Ships Same Business Day
    Weight:
    0.68 LBS
    MFG Part #:
    97132
    $81.99
    Qty in Cart: 0
    Quantity:
    Price:
    $81.99
    Subtotal:
  • Valve Spring Retainers - 7 Degree- 1.125 HRC97112

    Valve Spring Retainers - 7 Degree- 1.125 97112

    HOWARDS RACING COMPONENTS

    $81.99
    Valve spring retainers are critical to maintaining proper valve control under extreme RPM and boost conditions. These 7-degree chromoly retainers ensure consistent spring seat geometry, preventing valve float and maximizing engine reliability during...
    HRC97112
    SKU:
    HRC97112
    Availability:
    Ships Same Business Day
    Weight:
    0.68 LBS
    MFG Part #:
    97112
    $81.99
    Qty in Cart: 0
    Quantity:
    Price:
    $81.99
    Subtotal:
  • Solid Lifters - Ford V8 Direct Lube HRC91218

    Solid Lifters - Ford V8 Direct Lube 91218

    HOWARDS RACING COMPONENTS

    $310.99
    Solid lifters deliver direct, mechanical valve actuation without the compliance issues inherent in hydraulic designs—essential for high-RPM builds where valve control and repeatability matter. If you're running a carbureted or EFI Ford V8 with aggressive...
    HRC91218
    SKU:
    HRC91218
    Availability:
    Ships Same Business Day
    Weight:
    3.59 LBS
    MFG Part #:
    91218
    $310.99
    Qty in Cart: 0
    Quantity:
    Price:
    $310.99
    Subtotal:
  • SBC Mech Roller Lifter Set  +.300 Tall HRC91152

    SBC Mech Roller Lifter Set +.300 Tall 91152

    HOWARDS RACING COMPONENTS

    $589.99
    Mechanical roller lifters deliver consistent valve lift geometry and reduced friction compared to traditional flat-tappet designs, translating directly to improved engine efficiency and reliability at high RPM. The +.300" tall profile accommodates...
    HRC91152
    SKU:
    HRC91152
    Availability:
    Ships Same Business Day
    Weight:
    4.50 LBS
    MFG Part #:
    91152
    Qty in Cart: 0
    Quantity:
    Price:
    $589.99
    Subtotal:
  • Solid Roller Lifters - SBC Vertical Style HRC91132

    Solid Roller Lifters - SBC Vertical Style 91132

    HOWARDS RACING COMPONENTS

    $781.99
    Solid roller lifters deliver consistent valve actuation and higher RPM capability compared to conventional hydraulic lifters, making them essential for serious small-block Chevy builds. The Pro Lite Direct Lube design ensures reliable oil delivery at...
    HRC91132
    SKU:
    HRC91132
    Availability:
    Ships Same Business Day
    Weight:
    3.92 LBS
    MFG Part #:
    91132
    Qty in Cart: 0
    Quantity:
    Price:
    $781.99
    Subtotal:
  • Solid Lifters - Chevy V8 Direct Lube HRC91118

    Solid Lifters - Chevy V8 Direct Lube 91118

    HOWARDS RACING COMPONENTS

    $281.99
    Solid lifters deliver the reliability and precision required for high-RPM Chevy V8 engines, especially in forced induction or heavily modified applications where hydraulic lifter bleed-down becomes a limitation. The direct lube design ensures consistent...
    HRC91118
    SKU:
    HRC91118
    Availability:
    Ships Same Business Day
    Weight:
    3.14 LBS
    MFG Part #:
    91118
    $281.99
    Qty in Cart: 0
    Quantity:
    Price:
    $281.99
    Subtotal:
  • Solid Roller Lifters - SBC Vertical Style HRC91117

    Solid Roller Lifters - SBC Vertical Style 91117

    HOWARDS RACING COMPONENTS

    $478.99
    Solid roller lifters deliver consistent valve actuation and reduced friction compared to traditional hydraulic designs, making them essential for high-RPM small-block Chevy applications where reliability and performance are non-negotiable. If you're...
    HRC91117
    SKU:
    HRC91117
    Availability:
    Ships Same Business Day
    Weight:
    4.39 LBS
    MFG Part #:
    91117
    $478.99
    Qty in Cart: 0
    Quantity:
    Price:
    $478.99
    Subtotal:
  • Hydraulic Lifters - Chevy V8 Direct Lube HRC91116

    Hydraulic Lifters - Chevy V8 Direct Lube 91116

    HOWARDS RACING COMPONENTS

    $262.99
    Worn or damaged hydraulic lifters are a direct path to catastrophic engine failure—valve float, timing loss, and internal damage follow quickly. These direct-lube hydraulic lifters deliver consistent oil pressure to your valve train, maintaining precise...
    HRC91116
    SKU:
    HRC91116
    Availability:
    Ships Same Business Day
    Weight:
    3.49 LBS
    MFG Part #:
    91116
    $262.99
    Qty in Cart: 0
    Quantity:
    Price:
    $262.99
    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