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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
  • SBC Little M Iron Block 9.025 4.125/350 DRT31191211

    Dart SBC Little M Iron Block 9.025 4.125/350 31191211

    DART

    $3,799.99
    Whether you're building a budget-friendly street engine or a competition-ready small block, the Dart Little M delivers the structural integrity and modern features you need without the premium price...
    DRT31191211
    SKU:
    DRT31191211
    Availability:
    Ships Same Business Day
    Weight:
    180.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $3,799.99
    Subtotal:
  • SBC Little M Iron Block 9.025 4.000/350 DRT31191111

    Dart SBC Little M Iron Block 9.025 4.000/350 31191111

    DART

    $3,799.99
    If you're building a street or race engine on a realistic budget, the Dart Little M iron block delivers the reliability and performance of a purpose-built platform without the premium price tag. This...
    DRT31191111
    SKU:
    DRT31191111
    Availability:
    Ships Same Business Day
    Weight:
    182.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $3,799.99
    Subtotal:
  • SBC Little M Iron Block 9.025 4.125/400 DRT31182211

    Dart SBC Little M Iron Block 9.025 4.125/400 31182211

    DART

    $3,999.99
    The Dart SBC Little M Iron Block is engineered for builders who demand proven reliability without compromise. With a 4.125" bore and 9.025" deck height, this block provides the foundation for...
    DRT31182211
    SKU:
    DRT31182211
    Availability:
    Ships Same Business Day
    Weight:
    238.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $3,999.99
    Subtotal:
  • SBC Little M Iron Block 9.025 4.000/350 DRT31181111LT

    Dart SBC Little M Iron Block 9.025 4.000/350 31181111LT

    DART

    $6,934.99
    If you're building a serious Small Block Chevy engine from the ground up, you need a foundation that won't compromise your power goals. The Dart SBC Little M Iron Block delivers the strength,...
    DRT31181111LT
    SKU:
    DRT31181111LT
    Availability:
    Ships Same Business Day
    Weight:
    230.00 LBS
    $6,934.99
    Qty in Cart: 0
    Quantity:
    Price:
    $6,934.99
    Subtotal:
  • SBC Exhaust Valve 1.600 x 11/32 - 4.940 OAL DRT21391600

    Dart SBC Exhaust Valve 1.600 x 11/32 - 4.940 OAL 21391600

    DART

    $18.63
    Exhaust valve performance is critical to your Small Block Chevy's breathing efficiency and overall power delivery. The Dart SBC Exhaust Valve delivers reliable, high-temperature durability with...
    DRT21391600
    SKU:
    DRT21391600
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $18.63
    Qty in Cart: 0
    Quantity:
    Price:
    $18.63
    Subtotal:
  • SBC Intake Valve 2.055 Dia. DRT21312050

    Dart SBC Intake Valve 2.055 Dia. 21312050

    DART

    $18.63
    A precision intake valve is foundational to your Small Block Chevy's breathing efficiency and combustion reliability. Dart's stainless steel construction delivers superior corrosion resistance and...
    DRT21312050
    SKU:
    DRT21312050
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $18.63
    Qty in Cart: 0
    Quantity:
    Price:
    $18.63
    Subtotal:
  • Filter Mount 3/4-16  DER25708

    Derale Filter Mount 3/4-16 25708

    DERALE

    $36.09
    If you're running a modern engine with remote oil filtration or custom cooling systems, a quality filter mount is non-negotiable for reliable pressure management and leak-free operation. The Derale...
    DER25708
    SKU:
    DER25708
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    $36.09
    Qty in Cart: 0
    Quantity:
    Price:
    $36.09
    Subtotal:
  • Spin-On Adapter Kit (13/ 16-16) DER15705

    Derale Spin-On Adapter Kit (13/ 16-16) 15705

    DERALE

    $40.14
    If you're running a custom cooling system or upgrading your oil filtration setup, this Derale adapter kit gives you the flexibility to integrate a spin-on filter where your engine block wasn't...
    DER15705
    SKU:
    DER15705
    Availability:
    Ships Same Business Day
    Weight:
    0.89 LBS
    $40.14
    Qty in Cart: 0
    Quantity:
    Price:
    $40.14
    Subtotal:
  • Billet Alum Remote Oil Filter Mount GM CVROFM61

    CVR Performance Billet Alum Remote Oil Filter Mount GM OFM61

    CVR PERFORMANCE

    $68.99
    A remote oil filter mount relocates your filter away from the engine bay, reducing underhood temperatures and improving serviceability on tight engine configurations. This CVR Performance billet...
    CVROFM61
    SKU:
    CVROFM61
    Availability:
    Ships Same Business Day
    Weight:
    0.93 LBS
    $68.99
    Qty in Cart: 0
    Quantity:
    Price:
    $68.99
    Subtotal:
  • Billet Alum Spin On Filter Mount CVROFA65

    CVR Performance Billet Alum Spin On Filter Mount OFA65

    CVR PERFORMANCE

    $41.99
    Oil filter adapters are critical to engine protection, and a bypass eliminator ensures consistent filtration by preventing unfiltered oil from reaching your engine during cold starts or high-flow...
    CVROFA65
    SKU:
    CVROFA65
    Availability:
    Ships Same Business Day
    Weight:
    0.38 LBS
    $41.99
    Qty in Cart: 0
    Quantity:
    Price:
    $41.99
    Subtotal:
  • Rocker Arms - SBC 1.6 Ratio 7/16 Stud CRO73641-16

    Rocker Arms - SBC 1.6 Ratio 7/16 Stud 73641-16

    CROWER

    $947.99
    Rocker arm ratio directly impacts valve lift and engine breathing efficiency—a 1.6 ratio delivers the mechanical advantage needed for increased valve velocity and improved cylinder filling without...
    CRO73641-16
    SKU:
    CRO73641-16
    Availability:
    Ships Same Business Day
    Weight:
    8.65 LBS
    $947.99
    Qty in Cart: 0
    Quantity:
    Price:
    $947.99
    Subtotal:
  • Rocker Arms - SBF 1.6 Ratio 7/16 Stud CRO73612-16

    Rocker Arms - SBF 1.6 Ratio 7/16 Stud 73612-16

    CROWER

    $865.99
    Maximize your Small Block Ford's valvetrain efficiency with a complete set of full roller rocker arms engineered for consistent lift and reduced friction. The 1.6 ratio delivers optimal valve timing...
    CRO73612-16
    SKU:
    CRO73612-16
    Availability:
    Ships Same Business Day
    Weight:
    10.00 LBS
    $865.99
    Qty in Cart: 0
    Quantity:
    Price:
    $865.99
    Subtotal:
  • Rocker Arms - SBC 1.5 Ratio 7/16 Stud CRO73601-16

    Rocker Arms - SBC 1.5 Ratio 7/16 Stud 73601-16

    CROWER

    $944.99
    Rocker arms are fundamental to your Small Block Chevy's valve actuation, and the right ratio directly impacts both power delivery and engine responsiveness. These full-roller Enduro rocker arms...
    CRO73601-16
    SKU:
    CRO73601-16
    Availability:
    Ships Same Business Day
    Weight:
    8.25 LBS
    $944.99
    Qty in Cart: 0
    Quantity:
    Price:
    $944.99
    Subtotal:
  • Hydraulic Lifters Chevy V8 Race CRO66000R-16

    Hydraulic Lifters Chevy V8 Race 66000R-16

    CROWER

    $171.99
    Flat-tappet hydraulic lifters are the backbone of a reliable race engine, converting camshaft motion into consistent valve actuation under extreme conditions. These Chevy V8 Race lifters are...
    CRO66000R-16
    SKU:
    CRO66000R-16
    Availability:
    Ships Same Business Day
    Weight:
    3.65 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $171.99
    Subtotal:
  • Steel 7 Degree Valve Spring Retainers COM787-16

    Comp Cams Steel 7 Degree Valve Spring Retainers 787-16

    COMP CAMS

    $90.95
    Valve spring retainers are critical to maintaining consistent spring pressure and preventing valve float at high RPM—especially crucial if you're pushing aggressive cam profiles or forced induction...
    COM787-16
    SKU:
    COM787-16
    Availability:
    Ships Same Business Day
    Weight:
    0.48 LBS
    $90.95
    Qty in Cart: 0
    Quantity:
    Price:
    $90.95
    Subtotal:
  • 11/32 10-Degree TI Super Locks - Square Groove COM638-16

    Comp Cams 11/32 10-Degree TI Super Locks - Square Groove 638-16

    COMP CAMS

    $291.95
    Valve locks are critical safety components that keep your valve train secured under extreme RPM and boost conditions—a failure here means catastrophic engine damage. Comp Cams' titanium Super Locks...
    COM638-16
    SKU:
    COM638-16
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $291.95
    Qty in Cart: 0
    Quantity:
    Price:
    $291.95
    Subtotal:
  • Spring Seat Locators - 1.590x1.130x.570 COM4711-16

    Comp Cams Spring Seat Locators - 1.590x1.130x.570 4711-16

    COMP CAMS

    $83.95
    Valve spring locators are critical to maintaining consistent spring pressure and preventing valve float during high-RPM operation. These Comp Cams locators ensure precise positioning of your valve...
    COM4711-16
    SKU:
    COM4711-16
    Availability:
    Ships Same Business Day
    Weight:
    1.23 LBS
    $83.95
    Qty in Cart: 0
    Quantity:
    Price:
    $83.95
    Subtotal:
  • .570 Spring Seats  COM4682-16

    Comp Cams .570 Spring Seats 4682-16

    COMP CAMS

    $72.95
    Precision valve spring locators are critical for maintaining consistent spring pressure and preventing valve float at high RPMs. The Comp Cams .570 Spring Seats ensure your valve train operates...
    COM4682-16
    SKU:
    COM4682-16
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    $72.95
    Qty in Cart: 0
    Quantity:
    Price:
    $72.95
    Subtotal:
  • Spring Seat Locators 1.300 x .570 x.910 COM4677-16

    Comp Cams Spring Seat Locators 1.300 x .570 x.910 4677-16

    COMP CAMS

    $72.95
    Valve spring locators are critical for maintaining consistent spring seating and preventing valve float under high RPM conditions. Improperly seated springs compromise cylinder head integrity and can...
    COM4677-16
    SKU:
    COM4677-16
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    $72.95
    Qty in Cart: 0
    Quantity:
    Price:
    $72.95
    Subtotal:
  • Billet True Roller Tmng Set - SBC w/BBC Snout CLO9-3600BTX3

    Cloyes Billet True Roller Tmng Set - SBC w/BBC Snout 9-3600BTX3

    CLOYES

    $159.99
    Timing chain wear is a silent killer that compounds stress throughout your entire engine—slack chains rob you of precise ignition timing, invite gear rattle, and accelerate wear on your cam and crank...
    CLO9-3600BTX3
    SKU:
    CLO9-3600BTX3
    Availability:
    Ships Same Business Day
    Weight:
    3.22 LBS
    $159.99
    Qty in Cart: 0
    Quantity:
    Price:
    $159.99
    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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