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 SBC Rotating Assembly Kit - Competition 12504030
EAGLE
$2,735.99If you're building a serious Small Block Chevy engine for the track, you need a rotating assembly engineered to handle sustained high RPM abuse without compromise. The Eagle SBC Competition Kit delivers a forged crank and pistons paired with 6.000-inch...EAG12504030- SKU:
- EAG12504030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12504030
$2,735.99Qty in Cart: 0Quantity:Price:$2,735.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12503040
EAGLE
$2,510.99Building a competition small block that can handle sustained RPMs and peak power demands requires a rotating assembly engineered for reliability under extreme conditions. The Eagle SBC Competition Kit delivers a fully forged architecture—crank, pistons,...EAG12503040- SKU:
- EAG12503040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12503040
$2,510.99 -
Eagle SBC Rotating Assembly Kit - Competition 12503030
EAGLE
$2,329.99Building a competition-ready Small Block Chevy demands a rotating assembly engineered for both maximum output and long-term reliability under extreme loads. The Eagle SBC Rotating Assembly Kit combines a forged crankshaft, precision-forged pistons, and...EAG12503030- SKU:
- EAG12503030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12503030
$2,329.99Qty in Cart: 0Quantity:Price:$2,329.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12501030
EAGLE
$2,566.99When you're building a competition small block, your rotating assembly is the foundation of reliability and power delivery. The Eagle SBC Rotating Assembly Kit delivers forged internals engineered to handle sustained high-RPM abuse while maintaining the...EAG12501030- SKU:
- EAG12501030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12501030
$2,566.99 -
Eagle SBC Rotating Assembly Kit - Competition 12020030
EAGLE
$2,636.99When you're building a competition-grade Small Block Chevy engine, every component in your rotating assembly directly impacts power delivery, reliability, and repeatability on the track. The Eagle SBC Rotating Assembly Kit delivers forged internals...EAG12020030- SKU:
- EAG12020030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12020030
$2,636.99Qty in Cart: 0Quantity:Price:$2,636.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12012060
EAGLE
$2,447.99Building a 383 cubic inch Small Block Chevy engine demands a rotating assembly engineered for sustained high RPM performance and reliability. The Eagle SBC Rotating Assembly Kit delivers forged internals designed to handle the demands of competition...EAG12012060- SKU:
- EAG12012060
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12012060
$2,447.99Qty in Cart: 0Quantity:Price:$2,447.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12012040
EAGLE
$2,779.99A competition-grade rotating assembly is the foundation of any serious small-block build—and this Eagle kit delivers the durability and precision needed to handle sustained high RPM and boost. With forged internals throughout, you're getting components...EAG12012040- SKU:
- EAG12012040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12012040
$2,779.99Qty in Cart: 0Quantity:Price:$2,779.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12012030
EAGLE
$2,779.99Building a competition-ready 383 small block Chevy demands a rotating assembly engineered to handle sustained high RPMs and peak horsepower demands without compromise. The Eagle 12012030 kit pairs forged internals with precision tolerances to deliver the...EAG12012030- SKU:
- EAG12012030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12012030
$2,779.99Qty in Cart: 0Quantity:Price:$2,779.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12011060
EAGLE
$2,690.99A rotating assembly is the foundation of reliable, high-output power in any competition small block Chevy engine. The Eagle SBC kit (12011060) pairs a forged crankshaft and pistons with premium H-beam rods to handle the extreme loads of sustained...EAG12011060- SKU:
- EAG12011060
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12011060
$2,690.99Qty in Cart: 0Quantity:Price:$2,690.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12011030
EAGLE
$2,560.99Building a 383 small block Chevy demands a rotating assembly engineered to handle sustained high-RPM stress without compromise. The Eagle SBC kit combines forged internals with precision tolerances, giving you the reliability to push power gains without...EAG12011030- SKU:
- EAG12011030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12011030
$2,560.99Qty in Cart: 0Quantity:Price:$2,560.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12008030
EAGLE
$2,534.99When you're pushing a Small Block Chevy to competition levels, the rotating assembly is where durability and power meet. This Eagle kit gives you the strength to handle peak cylinder pressures while delivering the precision engineering needed for...EAG12008030- SKU:
- EAG12008030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12008030
$2,534.99Qty in Cart: 0Quantity:Price:$2,534.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12007030
EAGLE
$2,769.99If you're building a serious small-block Chevy that needs to survive high RPM competition, this Eagle rotating assembly gives you the reliability and durability required for consistent power delivery. The forged crank and pistons handle sustained load...EAG12007030- SKU:
- EAG12007030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12007030
$2,769.99Qty in Cart: 0Quantity:Price:$2,769.99Subtotal: -
Eagle SBC Cast Steel Crank - 3.750 Stroke 104003750
EAGLE
$351.99A quality crankshaft is the foundation of any reliable small block Chevy engine—it directly impacts longevity, power delivery, and overall durability under load. The Eagle SBC Cast Steel Crank delivers proven performance with external balance design and...EAG104003750- SKU:
- EAG104003750
- Availability:
- Ships Same Business Day
- Weight:
- 53.90 LBS
- MFG Part #:
- CRS104003750
$351.99 -
Eagle SBF 351W Cast Steel Crank - 3.850 Stroke 103513850
EAGLE
$442.99A quality crankshaft is the backbone of any high-revving small block Ford engine, and this Eagle 351W cast steel crank delivers the proven durability you need for consistent performance on the track or in your build. The 3.850-inch stroke gives you the...EAG103513850- SKU:
- EAG103513850
- Availability:
- Ships Same Business Day
- Weight:
- 59.95 LBS
- MFG Part #:
- CRS103513850
$442.99 -
Eagle SBC Cast Steel Crank - 3.750 Stroke 10350375057I
EAGLE
$399.99A quality crankshaft is the foundation of any reliable small-block Chevy build, and the Eagle SBC Cast Steel Crank delivers the durability and precision your engine demands. Whether you're rebuilding a street engine or supporting a performance...EAG10350375057I- SKU:
- EAG10350375057I
- Availability:
- Ships Same Business Day
- Weight:
- 52.60 LBS
- MFG Part #:
- CRS10350375057I
$399.99 -
Eagle SBF Cast Steel Crank - 3.000 Stroke 103023000-50
EAGLE
$356.99If you're building or rebuilding a Small Block Ford engine, crankshaft selection directly impacts reliability and performance. The Eagle SBF Cast Steel Crank delivers the stroke geometry and external balance characteristics needed for smooth, consistent...EAG103023000-50- SKU:
- EAG103023000-50
- Availability:
- Ships Same Business Day
- Weight:
- 44.05 LBS
- MFG Part #:
- CRS103023000-50
$356.99Qty in Cart: 0Quantity:Price:$356.99Subtotal: -
Eagle SBF Cast Steel Crank - 3.000 Stroke 103023000
EAGLE
$321.99A crankshaft is the backbone of your engine's reliability and efficiency. The Eagle SBF Cast Steel Crank delivers the stroke geometry and external balance characteristics necessary for consistent performance across a wide RPM range, whether you're...EAG103023000- SKU:
- EAG103023000
- Availability:
- Ships Same Business Day
- Weight:
- 45.25 LBS
- MFG Part #:
- CRS103023000
$321.99 -
Dura Bond HP Cam Bearing Set - Dart I/E Block - Coated GMP-2T
DURA-BOND
$92.99Precision camshaft bearings are critical to engine longevity and consistent performance—especially in high-RPM or forced-induction applications where bearing wear accelerates quickly. The Dura Bond HP Cam Bearing Set is engineered with a durable coating...DURGMP-2T- SKU:
- DURGMP-2T
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- GMP-2T
$92.99 -
Dura Bond Head Dowel - Hollow - GM LS 4.8L/5.3L/6.0L AD-326
DURA-BOND
$3.99Cylinder head dowels are critical alignment and locating pins that ensure proper gasket seating and prevent head lift during high-boost applications or sustained high-RPM operation. OEM dowels can wear, shear, or become damaged—compromised dowels lead to...DURAD-326- SKU:
- DURAD-326
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- AD-326
$3.99Qty in Cart: 0Quantity:Price:$3.99Subtotal: -
Dura Bond HP Cam Bearing Set - SBF 302/351 SVO- Coated 351HPT
DURA-BOND
$135.99Cam bearing wear is one of the most overlooked failure points in high-revving small block Ford engines, yet proper bearing selection directly impacts oil pressure stability and camshaft longevity. The Dura Bond HP Cam Bearing Set delivers a...DUR351HPT- SKU:
- DUR351HPT
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- MFG Part #:
- 351HPT
$135.99
