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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Eagle SBF 4340 Forged H-Beam Rods 5.400 w/2.123 Pin CRS5400S3D
EAGLE
$663.99A reliable connecting rod is the backbone of any high-revving small block Ford engine, directly impacting power delivery and long-term reliability under sustained load. These Eagle SBF 4340 forged H-beam rods deliver the strength and precision required...EAGCRS5400S3D- SKU:
- EAGCRS5400S3D
- Availability:
- Ships Same Business Day
- Weight:
- 12.00 LBS
- MFG Part #:
- CRS5400S3D
$663.99 -
Eagle SBF 4340 Forged H-Beam Rods 5.090 CRS5090F3D
EAGLE
$702.99If you're building or rebuilding a Small Block Ford engine that demands reliability under sustained high RPM and load, Eagle's 4340 forged H-beam rods are the foundation you need. These rods combine the strength of premium 4340 steel with proven H-beam...EAGCRS5090F3D- SKU:
- EAGCRS5090F3D
- Availability:
- Ships Same Business Day
- Weight:
- 11.15 LBS
- MFG Part #:
- CRS5090F3D
$702.99Qty in Cart: 0Quantity:Price:$702.99Subtotal: -
Eagle Wrist Pin Bushing - SBF EAGB928-1
EAGLE
$13.99A worn or damaged wrist pin bushing compromises rod-to-piston articulation, leading to increased friction, reduced engine efficiency, and potential catastrophic failure under high RPM loads. This Eagle SBF bushing restores precise clearances and...EAGB928-1- SKU:
- EAGB928-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- EAGB928-1
$13.99Qty in Cart: 0Quantity:Price:$13.99Subtotal: -
Eagle Wrist Pin Bushing - SBC EAGB927-1
EAGLE
$13.99A wrist pin bushing is a critical component that directly impacts connecting rod durability and engine reliability. If you're building or rebuilding an SBC engine, worn or damaged bushings lead to excessive pin wear, increased friction, and potential...EAGB927-1- SKU:
- EAGB927-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- EAGB927-1
$13.99 -
Eagle SBC 4340 Forged Crank - 3.750 Stroke 440037505700
EAGLE
$892.99A quality crankshaft is the backbone of any high-revving Small Block Chevy build. The Eagle SBC 4340 Forged Crank delivers the strength and precision needed to handle sustained high RPM loads without flex or failure, while its optimized 3.750-inch stroke...EAG440037505700- SKU:
- EAG440037505700
- Availability:
- Ships Same Business Day
- Weight:
- 58.70 LBS
- MFG Part #:
- CRS440037505700
$892.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke 440034805700
EAGLE
$1,050.99A forged crankshaft is the backbone of any high-performance small block Chevy engine, and the Eagle SBC 4340 delivers the strength and reliability required for sustained boost, extended RPM limits, and aggressive power builds. The 3.480-inch stroke gives...EAG440034805700- SKU:
- EAG440034805700
- Availability:
- Ships Same Business Day
- Weight:
- 56.80 LBS
- MFG Part #:
- CRS440034805700
$1,050.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke 435334805700
EAGLE
$931.99A forged crankshaft is the foundation of any reliable, high-RPM Small Block Chevy build. The Eagle SBC 4340 combines superior material strength with precision manufacturing to handle sustained power delivery without risk of catastrophic failure. If...EAG435334805700- SKU:
- EAG435334805700
- Availability:
- Ships Same Business Day
- Weight:
- 56.00 LBS
- MFG Part #:
- CRS435334805700
$931.99Qty in Cart: 0Quantity:Price:$931.99Subtotal: -
Eagle SBF 4340 Forged Crank - 4.000 Stroke 435240006200
EAGLE
$1,075.99A quality crankshaft is the foundation of any reliable high-performance engine build. The Eagle SBF 4340 Forged Crank delivers the stroke geometry and material strength you need to support higher RPMs and sustained power delivery without risking...EAG435240006200- SKU:
- EAG435240006200
- Availability:
- Ships Same Business Day
- Weight:
- 62.25 LBS
- MFG Part #:
- CRS435240006200
$1,075.99 -
Eagle SBF 4340 Forged Crank - 4.000 Stroke 435140006200
EAGLE
$852.99A forged 4340 crankshaft is the foundation of any serious Small Block Ford build that demands reliability under sustained high RPM and boost. This Eagle crank delivers the strength to handle forced induction, nitrous, and aggressive cam profiles without...EAG435140006200- SKU:
- EAG435140006200
- Availability:
- Ships Same Business Day
- Weight:
- 63.65 LBS
- MFG Part #:
- CRS435140006200
$852.99 -
Eagle SBC 4340 Forged Crank - 4.000 Stroke 435040006000
EAGLE
$981.99A stroker crank is the foundation of any serious Small Block Chevy build—and the Eagle SBC 4340 delivers the displacement and durability you need for increased torque and horsepower. The 4.000-inch stroke expands your engine's cubic inches, translating...EAG435040006000- SKU:
- EAG435040006000
- Availability:
- Ships Same Business Day
- Weight:
- 56.65 LBS
- MFG Part #:
- CRS435040006000
$981.99 -
Eagle SBC 4340 Forged Crank - 3.750 Stroke - L/W 4350375057LA
EAGLE
$871.99A forged crankshaft is the backbone of any high-revving Small Block Chevy engine, and the Eagle SBC 4340 delivers the strength and reliability you need to push your power levels without compromise. The lightweight design reduces rotational mass,...EAG4350375057LA- SKU:
- EAG4350375057LA
- Availability:
- Ships Same Business Day
- Weight:
- 53.00 LBS
- MFG Part #:
- CRS4350375057LA
$871.99Qty in Cart: 0Quantity:Price:$871.99Subtotal: -
Eagle SBC 4340 Forged Crank - 3.625 Stroke 435036255700
EAGLE
$870.99Built for serious small block builders who demand reliability under extreme power levels, the Eagle SBC 4340 Forged Crank delivers the strength and precision required for forced induction, nitrous, or high-RPM naturally aspirated applications. The 4340...EAG435036255700- SKU:
- EAG435036255700
- Availability:
- Ships Same Business Day
- Weight:
- 55.90 LBS
- MFG Part #:
- CRS435036255700
$870.99 -
Eagle SBC 4340 Forged Crank - 3.5625 Stroke 435035625700
EAGLE
$859.99Building a reliable high-displacement Small Block Chevy engine demands a crankshaft engineered to handle increased load and RPM stress. The Eagle SBC 4340 Forged Crank delivers the strength and precision needed for forced induction, naturally aspirated...EAG435035625700- SKU:
- EAG435035625700
- Availability:
- Ships Same Business Day
- Weight:
- 45.25 LBS
- MFG Part #:
- CRS435035625700
$859.99 -
Eagle SBC 4340 Forged Crank - 3.500 Stroke 435035005700
EAGLE
$946.99A forged crankshaft is the backbone of any high-output small-block engine, and the Eagle SBC 4340 delivers the strength and precision required for sustained performance whether you're building a street engine or a competition powerplant. The 3.500"...EAG435035005700- SKU:
- EAG435035005700
- Availability:
- Ships Same Business Day
- Weight:
- 55.60 LBS
- MFG Part #:
- CRS435035005700
$946.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke 435034805700
EAGLE
$931.99If you're building or rebuilding a Small Block Chevy engine for serious power, the Eagle SBC 4340 Forged Crank is a critical foundation. Forged 4340 steel delivers the strength and fatigue resistance needed for high-RPM sustained performance, while the...EAG435034805700- SKU:
- EAG435034805700
- Availability:
- Ships Same Business Day
- Weight:
- 55.00 LBS
- MFG Part #:
- CRS435034805700
$931.99 -
Eagle GM LS1 4340 Forged Crank - 4.000 Stroke 434640006100
EAGLE
$1,089.99A forged crankshaft is the backbone of any high-performance LS1 engine build, and Eagle's 4340 forged unit delivers the strength and reliability demanded by serious racers and built-engine enthusiasts. This internally balanced design eliminates the need...EAG434640006100- SKU:
- EAG434640006100
- Availability:
- Ships Same Business Day
- Weight:
- 57.90 LBS
- MFG Part #:
- CRS434640006100
$1,089.99 -
Eagle GM LS1 4340 Forged Crank - 3.622 Stroke 434636226100
EAGLE
$1,093.99When you're building a high-displacement LS engine or pushing an existing platform to its limits, your crankshaft must handle extreme loads without compromise. The Eagle GM LS1 4340 Forged Crank delivers the strength and reliability required for serious...EAG434636226100- SKU:
- EAG434636226100
- Availability:
- Ships Same Business Day
- Weight:
- 58.80 LBS
- MFG Part #:
- CRS434636226100
$1,093.99 -
Eagle SBF 4340 Forged Crank - 3.400 Stroke 430234025400
EAGLE
$939.99A forged 4340 steel crankshaft is the foundation of any high-revving, high-horsepower Small Block Ford engine build. The Eagle SBF 4340 delivers the strength and reliability needed to handle aggressive power levels without sacrificing durability, making...EAG430234025400- SKU:
- EAG430234025400
- Availability:
- Ships Same Business Day
- Weight:
- 50.30 LBS
- MFG Part #:
- CRS430234025400
$939.99 -
Eagle SBF 4340 Forged Crank - 3.000 Stroke 430230015090
EAGLE
$812.99A forged 4340 steel crankshaft is the foundation of a reliable, high-RPM Small Block Ford engine build. The Eagle SBF crank delivers the stroke length and internal balance geometry needed to support aggressive power outputs while maintaining durability...EAG430230015090- SKU:
- EAG430230015090
- Availability:
- Ships Same Business Day
- Weight:
- 49.40 LBS
- MFG Part #:
- CRS430230015090
$812.99 -
Eagle SBF Rotating Assembly Kit - Street & Strip 16004030
EAGLE
$1,680.99Building a Street & Strip 347 small block? The Eagle SBF Rotating Assembly Kit delivers the strength you need for both boulevard cruising and track duty. This kit pairs a cast iron crank with forged pistons and I-beam rods—a proven combination that...EAG16004030- SKU:
- EAG16004030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT16004030
$1,680.99
