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
- Jones Racing Serpentine Drive Kit 1020-S – New serpentine drive kit designed for efficient accessory drive in racing engines, weighing 3.61 lbs for lightweight performance.
- Allstar Performance 1:1 Pulley Kit Head Mount PS ALL31082 – Billet aluminum polished pulley kit with 1:1 ratio and 2-groove V-belt, includes crank and water pump pulleys and belts for Small Block Chevy engines with head-mount power steering.
- Allstar Performance Valve Covers SBC Steel Black w/Tubes ALL26147 – Durable steel valve covers in black finish with tubes, designed for Small Block Chevy engines, weighing 5.95 lbs for reliable sealing and style.
- Chevrolet Performance LSX Cast Iron Block - 4.065 Bore Finished 19417352 – Bare cast iron engine block with 4.065 in bore, 9.240 deck height, 6-bolt mains and heads, orange powdercoat finish, compatible with Gen III/IV LS components, supporting up to 4.250 in stroke and 454 cu. in. displacement.
- SBC Solid Roller Cam 111013-10 – High-performance solid roller camshaft from Howards Racing Components for Small Block Chevy engines, weighing 8.70 lbs, ideal for aggressive racing applications.
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
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KRC Breather Assembly CT525 CTB 79525000
KRC POWER STEERING
$349.05Breather Assembly CT525 Breather SystemBreathers / Fittings / Hose / TubingCT525LS-SeriesKitKRC79525000- SKU:
- KRC79525000
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- MFG Part #:
- CTB 79525000
$349.05Qty in Cart: 0Quantity:Price:$349.05Subtotal: -
KRC Pulley Idler / Tensioner w/Stud and Bolt KRC 40406000
KRC POWER STEERING
$115.45Pulley Idler / Tensioner w/Stud and BoltBelt Tensioner PulleySerpentineBearing / Hardware IncludedAluminumBlack AnodizedKRC Belt Tensioner AssemblyEachKRC40406000- SKU:
- KRC40406000
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MFG Part #:
- KRC 40406000
$115.45 -
KRC P/S Pump Pulley 6in V-Belt Press On KRC 40161600
KRC POWER STEERING
$115.45P/S Pump Pulley 6in V-Belt Press OnPower Steering PulleyV-Belt1 GroovePress-On6.000 in DiameterAluminumBlack AnodizedKRC PumpsEachKRC40161600- SKU:
- KRC40161600
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- MFG Part #:
- KRC 40161600
$115.45 -
KRC P/S Pump Pulley 6in Serpentine Press On KRC 40160600
KRC POWER STEERING
$110.63P/S Pump Pulley 6in Serpentine Press OnPower Steering PulleySerpentine6-RibPress-On6.000 in DiameterAluminumBlack AnodizedSaginawEachKRC40160600- SKU:
- KRC40160600
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- KRC 40160600
$110.63 -
KRC Alt Pulley 1.75in 3-Rib Denso KRC 40130340
KRC POWER STEERING
$34.86Alt Pulley 1.75in 3-Rib DensoAlternator PulleySerpentine3-Rib1.750 in DiameterAluminumBlack AnodizedDenso / Delco AlternatorsEachKRC40130340- SKU:
- KRC40130340
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MFG Part #:
- KRC 40130340
$34.86 -
KRC SBC 3-Bolt Crank Adpt. Spacer .500in KRC 38815500
KRC POWER STEERING
$51.70SBC 3-Bolt Crank Adpt. Spacer .500inCrank Mandrel SpacerR-Lok0.500 in ThickAluminumNaturalKRC R-Lok Pulley Drive SystemChevy V8EachKRC38815500- SKU:
- KRC38815500
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- MFG Part #:
- KRC 38815500
$51.70 -
KRC Serpentine Crank Pulley 3.5in R-Lok KRC 38235000
KRC POWER STEERING
$70.95Serpentine Crank Pulley 3.5in R-LokCrankshaft PulleyR-LokSerpentine6-Rib3.500 in DiameterAluminumBlack AnodizedKRC R-Lok Pulley Drive SystemEachKRC38235000- SKU:
- KRC38235000
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- KRC 38235000
$70.95 -
KRC R-Lok to R-Lok Spacer .575in KRC 38215575
KRC POWER STEERING
$33.66R-Lok to R-Lok Spacer .575inCrankshaft Pulley SpacerR-Lok0.575 in ThickAluminumNaturalKRC R-Lok Pulley Drive SystemEachKRC38215575- SKU:
- KRC38215575
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KRC 38215575
$33.66 -
KRC R-Lok to R-Lok Spacer .250in KRC 38215250
KRC POWER STEERING
$32.47R-Lok to R-Lok Spacer .250inCrank Mandrel SpacerR-Lok0.250 in ThickAluminumNaturalKRC R-Lok Pulley Drive SystemChevy V8EachKRC38215250- SKU:
- KRC38215250
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KRC 38215250
$32.47Qty in Cart: 0Quantity:Price:$32.47Subtotal: -
KRC Water Pump Pulley 4in KRC38025400
KRC POWER STEERING
$92.60Water Pump Pulley 4in Water Pump Pulley - Serpentine - 6 Rib / 3 Rib - 4.000 in Diameter - Aluminum - Black Anodize - Small Block Chevy / Ford - EachKRC38025400- SKU:
- KRC38025400
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- MFG Part #:
- KRC 38025400
$92.60 -
KRC Pro Series Serpentine Pulley Kit 30% w/Idler KRC 37453000
KRC POWER STEERING
$463.00Pro Series Serpentine Pulley Kit 30% w/IdlerPulley KitPro Series6 Rib SerpentineBillet AluminumBlack AnodizedSmall Block ChevyKitKRC37453000- SKU:
- KRC37453000
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
- MFG Part #:
- KRC 37453000
$463.00 -
KRC Pro Series Serpentine Pulley Kit 1:1 w/Idler KRC 37451000
KRC POWER STEERING
$511.10Pro Series Serpentine Pulley Kit 1:1 w/IdlerPulley KitPro Series6 Rib Serpentine1 to 1Billet AluminumBlack AnodizedSmall Block ChevyKitKRC37451000- SKU:
- KRC37451000
- Availability:
- Ships Same Business Day
- Weight:
- 5.23 LBS
- MFG Part #:
- KRC 37451000
$511.10 -
KRC Serpentine Pulley Kit Pro Series SBC KRC 36403000
KRC POWER STEERING
$240.52Serpentine Pulley Kit Pro Series SBCPulley KitPro-Series6 Rib SerpentineBillet AluminumBlack AnodizedSmall Block ChevyKitKRC36403000- SKU:
- KRC36403000
- Availability:
- Ships Same Business Day
- Weight:
- 2.27 LBS
- MFG Part #:
- KRC 36403000
$240.52 -
KRC Pro Series Serpentine Pulley Kit 15% KRC 36401500
KRC POWER STEERING
$240.52Pro Series Serpentine Pulley Kit 15%Pulley KitPro-Series6 Rib SerpentineBillet AluminumBlack AnodizedSmall Block ChevyKitKRC36401500- SKU:
- KRC36401500
- Availability:
- Ships Same Business Day
- Weight:
- 2.36 LBS
- MFG Part #:
- KRC 36401500
$240.52 -
KRC Serpentine Pulley Kit w/SBC Head Mount KRC 36351500
KRC POWER STEERING
$228.48Serpentine Pulley Kit w/SBC Head MountPulley Kit6 Rib SerpentineBillet AluminumBlack AnodizedSmall Block ChevyKitKRC36351500- SKU:
- KRC36351500
- Availability:
- Ships Same Business Day
- Weight:
- 2.26 LBS
- MFG Part #:
- KRC 36351500
$228.48 -
KRC 6.0in 6-Rib Pulley Alum P/S Pump KRC 20017600
KRC POWER STEERING
$116.646.0in 6-Rib Pulley Alum P/S PumpPower Steering PulleySerpentine6 Rib6.000 in DiameterAluminumBlack Anodized17 SplineKRC Power Steering PumpsEachKRC20017600- SKU:
- KRC20017600
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- KRC 20017600
$116.64 -
KRC 4.2in 3-Rib Alum. P/S Pump Pulley KRC 20015300
KRC POWER STEERING
$92.604.2in 3-Rib Alum. P/S Pump PulleyPower Steering PulleySerpentine3 Rib17 Spline4.200 in DiameterAluminumBlack AnodizedKRC PumpsEachKRC20015300- SKU:
- KRC20015300
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MFG Part #:
- KRC 20015300
$92.60 -
KRC 4.2in 6-Rib Alum P/S Pump Pulley KRC 20015000
KRC POWER STEERING
$82.964.2in 6-Rib Alum P/S Pump PulleyPower Steering PulleySerpentine6-Rib17 Spline4.200 in DiameterAluminumBlack AnodizedKRC PumpsEachKRC20015000- SKU:
- KRC20015000
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MFG Part #:
- KRC 20015000
$82.96 -
KRC V-Belt Pulley 6.0in for KRC Alum. Pumps KRC 20011000
KRC POWER STEERING
$115.45V-Belt Pulley 6.0in for KRC Alum. PumpsPower Steering PulleyV-Belt1 Groove17 Spline6.000 in DiameterAluminumBlack AnodizedKRC PumpsEachKRC20011000- SKU:
- KRC20011000
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MFG Part #:
- KRC 20011000
$115.45 -
Crankcase Vent 9/16in. Fln. KNE62-2480
K AND N ENGINEERING
$34.99Crankcase Vent 9/16in. Fln.BreatherClamp-OnRound9/16 in OD TubeHalf ShieldedReusableK&N LogoRubber / SteelBlack / ChromeEachKNE62-2480- SKU:
- KNE62-2480
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 62-2480
$34.99
