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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1.200in Wide Gear Body 1057
STOCK CAR PROD-OIL PUMPS
$73.99A reliable oil pump is the foundation of any high-performance engine—without consistent pressure and flow, you're risking catastrophic bearing wear and engine failure. The SCP 1057 gear body delivers dependable circulation to keep your racing engine...SCP1057- SKU:
- SCP1057
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- 1057
$73.99Qty in Cart: 0Quantity:Price:$73.99Subtotal: -
Drive Gear (1.200in) 1055K
STOCK CAR PROD-OIL PUMPS
$36.99A reliable oil pump drive gear is essential for maintaining consistent oil pressure and protecting your engine under demanding conditions. The 1055K delivers dependable performance with robust steel construction designed to withstand high-RPM operation...SCP1055K- SKU:
- SCP1055K
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- MFG Part #:
- 1055K
$36.99 -
Idler Gear (1.200in) 1055
STOCK CAR PROD-OIL PUMPS
$36.99A properly functioning oil pump is the heart of your engine's lubrication system, and the idler gear is critical to maintaining consistent oil pressure under sustained high-RPM operation. This 1.200-inch wide steel idler gear ensures smooth power...SCP1055- SKU:
- SCP1055
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MFG Part #:
- 1055
$36.99 -
Gear Body W/2 #12 Ports 1.450 1047
STOCK CAR PROD-OIL PUMPS
$74.99An efficient oil pump body is critical to maintaining consistent oil pressure and protecting your engine under extreme racing conditions. The SCP Gear Body with dual #12 ports delivers reliable flow rates with minimal restriction, allowing your...SCP1047- SKU:
- SCP1047
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- MFG Part #:
- 1047
$74.99 -
Drive Gear 1.450 1045K
STOCK CAR PROD-OIL PUMPS
$40.99A reliable oil pump drive gear is foundational to engine longevity—without proper oil circulation, even the most carefully tuned engine will fail prematurely. The Drive Gear 1.450 1045K delivers consistent, dependable performance in demanding racing and...SCP1045K- SKU:
- SCP1045K
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- MFG Part #:
- 1045K
$40.99 -
Idler Gear 1.450 1045
STOCK CAR PROD-OIL PUMPS
$38.99A reliable oil pump idler gear is critical to maintaining consistent oil pressure and engine lubrication under high-RPM conditions. Whether you're rebuilding a race engine or servicing your performance vehicle, this precision-machined steel gear ensures...SCP1045- SKU:
- SCP1045
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 1045
$38.99 -
SBC/SBF Wrist Pin Bushing .927in B927
SCAT ENTERPRISES
$10.99A worn or damaged wrist pin bushing compromises rod-to-piston alignment, leading to excessive wear, increased friction, and potential catastrophic engine failure. This OEM-spec bushing restores the critical precision fit between your connecting rod and...SCAB927- SKU:
- SCAB927
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- B927
$10.99 -
SBC Cast Steel Crank 3.750 Stroke 9-400-3750-6000
SCAT ENTERPRISES
$361.99A lightweight crankshaft is fundamental to building a high-revving Small Block Chevy engine that responds instantly and maintains durability under sustained load. The Pro Comp 9000 Series reduces rotating mass, which decreases parasitic drag and allows...SCA9-400-3750-6000- SKU:
- SCA9-400-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 54.30 LBS
- MFG Part #:
- 9-400-3750-6000
$361.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-400-3750-5700
SCAT ENTERPRISES
$361.99A properly engineered crankshaft is the backbone of any high-performance small block Chevy engine, and this cast steel unit delivers the stroke geometry and durability you need for sustained power delivery. The 3.750-inch stroke optimizes displacement...SCA9-400-3750-5700- SKU:
- SCA9-400-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 52.55 LBS
- MFG Part #:
- 9-400-3750-5700
$361.99 -
SBC Cast Steel Crank - 3.500 Stroke 9-400-3500-6000
SCAT ENTERPRISES
$361.99A quality crankshaft is the foundation of any reliable engine build, and this Pro Comp lightweight design delivers the precision and durability that separates a solid street engine from a fragile race motor. The 3.500" stroke gives you the displacement...SCA9-400-3500-6000- SKU:
- SCA9-400-3500-6000
- Availability:
- Ships Same Business Day
- Weight:
- 54.50 LBS
- MFG Part #:
- 9-400-3500-6000
$361.99 -
SBF Cast Steel Crank - 3.850 Stroke 9-351-385-5955-2311W
SCAT ENTERPRISES
$481.99A quality crankshaft is the backbone of any high-revving small block Ford engine, and this Pro Comp 9000 Series cast iron unit delivers the stroke you need for increased displacement and torque output without breaking the bank. The 3.850-inch stroke is a...SCA9-351-385-5955-2311W- SKU:
- SCA9-351-385-5955-2311W
- Availability:
- Ships Same Business Day
- Weight:
- 62.80 LBS
- MFG Part #:
- 9-351-385-5955-2311W
$481.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-350-3750-6000
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of any reliable small-block Chevy engine build. The Pro Comp Lightweight 9000 Series delivers reduced rotating mass without compromising durability, allowing your engine to rev faster and more efficiently while...SCA9-350-3750-6000- SKU:
- SCA9-350-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 51.55 LBS
- MFG Part #:
- 9-350-3750-6000
$333.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-350-3750-5700-L
SCAT ENTERPRISES
$333.99A quality crankshaft is the backbone of any high-revving small block build—it's where durability meets displacement. The Pro Comp Lightweight 9000 Series delivers the strength you need for sustained high-RPM performance without the rotating mass penalty...SCA9-350-3750-5700-L- SKU:
- SCA9-350-3750-5700-L
- Availability:
- Ships Same Business Day
- Weight:
- 53.05 LBS
- MFG Part #:
- 9-350-3750-5700-L
$333.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-350-3750-5700
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of reliable horsepower—this SBC cast steel crank delivers the stroke geometry and external balance you need for consistent performance across high-RPM applications. Whether you're building a street engine or...SCA9-350-3750-5700- SKU:
- SCA9-350-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 49.00 LBS
- MFG Part #:
- 9-350-3750-5700
$333.99 -
SBC Cast Steel Crank - 3.480 Stroke 9-350-3480-5700
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of any reliable high-performance engine build—it's the component that converts combustion energy into usable power, and it absolutely cannot fail under load. The Pro Comp Lightweight 9000 Series delivers the...SCA9-350-3480-5700- SKU:
- SCA9-350-3480-5700
- Availability:
- Ships Same Business Day
- Weight:
- 52.90 LBS
- MFG Part #:
- 9-350-3480-5700
$333.99 -
SBF Cast Steel Crank - 3.400 Stroke 9-302-3400-5400-2123
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of any reliable engine build, and the Pro Comp 9000 Series delivers the precision and durability demanded by serious racers and high-performance enthusiasts. With a 3.400" stroke, this cast iron crank provides the...SCA9-302-3400-5400-2123- SKU:
- SCA9-302-3400-5400-2123
- Availability:
- Ships Same Business Day
- Weight:
- 46.60 LBS
- MFG Part #:
- 9-302-3400-5400-2123
$333.99 -
SBC F-43 Forged Crank - 4.000 Stroke 4-400-4000-6000-21LW
SCAT ENTERPRISES
$1,279.99A forged crankshaft is the backbone of any high-revving small block Chevy engine build—it's where durability meets displacement. The SBC F-43 delivers the 4.000-inch stroke you need for increased cubic inches and torque, while its forged steel...SCA4-400-4000-6000-21LW- SKU:
- SCA4-400-4000-6000-21LW
- Availability:
- Ships Same Business Day
- Weight:
- 49.90 LBS
- MFG Part #:
- 4-400-4000-6000-21LW
$1,279.99Qty in Cart: 0Quantity:Price:$1,279.99Subtotal: -
SBC 4340 Forged Crank - 3.875 Stroke 4-400-3875-6000
SCAT ENTERPRISES
$944.99A quality crankshaft is the backbone of any high-performance small block build—it directly affects your engine's power delivery, reliability, and longevity. The SBC 4340 Forged Crank delivers the stroke and durability you need to extract maximum torque...SCA4-400-3875-6000- SKU:
- SCA4-400-3875-6000
- Availability:
- Ships Same Business Day
- Weight:
- 58.70 LBS
- MFG Part #:
- 4-400-3875-6000
$944.99 -
SBC 4340 Forged Crank - 3.750 Stroke 4-400-3750-6000
SCAT ENTERPRISES
$944.99If you're building a Small Block Chevy engine for racing or high-performance street use, stroke is everything—and the SBC 4340 Forged Crank delivers the displacement gains you need without compromising reliability. The 3.750-inch stroke paired with...SCA4-400-3750-6000- SKU:
- SCA4-400-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 59.65 LBS
- MFG Part #:
- 4-400-3750-6000
$944.99 -
SBC 4340 Forged Crank - 3.750 Stroke 4-400-3750-5700
SCAT ENTERPRISES
$944.99A forged steel crankshaft is the backbone of any high-rpm Small Block Chevy engine, and this 4340 unit is built to handle serious power without compromise. With a 3.750-inch stroke and internal balance design, you're getting a component engineered for...SCA4-400-3750-5700- SKU:
- SCA4-400-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 59.30 LBS
- MFG Part #:
- 4-400-3750-5700
$944.99
