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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
  • Cam Bearing Set - Coated SBC w/55mm Dia. DRT32210101-5

    Dart Cam Bearing Set - Coated SBC w/55mm Dia. 32210101-5

    DART

    $147.43
    Cam bearing wear is one of the fastest ways to compromise engine reliability and performance, especially in high-boost or high-RPM applications. The Dart Cam Bearing Set delivers OEM-quality fit with PTFE coating technology that dramatically reduces...
    DRT32210101-5
    SKU:
    DRT32210101-5
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    $147.43
    Qty in Cart: 0
    Quantity:
    Price:
    $147.43
    Subtotal:
  • Block Sleeve - SBC 4.125 ID x 5.625 Long DRT32110213

    Dart Block Sleeve - SBC 4.125 ID x 5.625 Long 32110213

    DART

    $199.50
    A worn or damaged cylinder bore can compromise compression, oil control, and overall engine reliability—especially in high-performance or rebuilt Small Block Chevy applications. The Dart Block Sleeve restores your bore to precise specifications with...
    DRT32110213
    SKU:
    DRT32110213
    Availability:
    Ships Same Business Day
    Weight:
    2.30 LBS
    $199.50
    Qty in Cart: 0
    Quantity:
    Price:
    $199.50
    Subtotal:
  • SBF Block Parts Kit SHP Blocks DRT32000015

    Dart SBF Block Parts Kit SHP Blocks 32000015

    DART

    $117.02
    Building a bulletproof Small Block Ford engine requires more than just a core block—you need quality OEM hardware that won't compromise your build. The Dart SHP Blocks Parts Kit supplies the critical fasteners, seals, and bearings that ensure proper...
    DRT32000015
    SKU:
    DRT32000015
    Availability:
    Ships Same Business Day
    Weight:
    1.90 LBS
    $117.02
    Qty in Cart: 0
    Quantity:
    Price:
    $117.02
    Subtotal:
  • SBC Little M Iron Block 9.025 4.125/400 DRT31192211

    Dart SBC Little M Iron Block 9.025 4.125/400 31192211

    DART

    $3,799.99
    If you're building a small block Chevy engine that needs to handle real power without breaking the bank, the Dart Little M iron block is engineered for reliability at the track or street. Its reinforced construction—extra-thick decks, Siamese cylinder...
    DRT31192211
    SKU:
    DRT31192211
    Availability:
    Ships Same Business Day
    Weight:
    203.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $3,799.99
    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 tag. Cast from premium Class 32B iron with extra-thick...
    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 cast iron foundation uses standard small block Chevy...
    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 aggressive small-block Chevy builds that require structural...
    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, precision, and flexibility required for high-horsepower...
    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 stainless construction that resists corrosion and thermal...
    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 thermal stability under sustained high-RPM operation...
    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 25708 delivers a precision-engineered solution with...
    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 originally designed for one. The polished aluminum...
    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 aluminum unit offers the structural integrity and precision...
    CVROFM61
    SKU:
    CVROFM61
    Availability:
    Ships Same Business Day
    Weight:
    0.93 LBS
    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 conditions. The CVR Performance OFA65 delivers precision...
    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 requiring cam shaft modifications. Enduro-grade stainless...
    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 geometry for naturally aspirated and moderately boosted...
    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 deliver consistent, low-friction valve action across the...
    CRO73601-16
    SKU:
    CRO73601-16
    Availability:
    Ships Same Business Day
    Weight:
    8.25 LBS
    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 engineered to handle the demands of high-RPM competition while...
    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

    $85.95
    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. Comp Cams' steel construction and precise 7-degree...
    COM787-16
    SKU:
    COM787-16
    Availability:
    Ships Same Business Day
    Weight:
    0.48 LBS
    $85.95
    Qty in Cart: 0
    Quantity:
    Price:
    $85.95
    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

    $277.95
    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 are engineered for reliability in forced induction and...
    COM638-16
    SKU:
    COM638-16
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    $277.95
    Qty in Cart: 0
    Quantity:
    Price:
    $277.95
    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

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