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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SBC Domed Piston Set 4.040 Bore 140349
SPORTSMAN RACING PRODUCTS
$699.99Building a high-compression Small Block Chevy engine demands pistons engineered for reliability under sustained boost and high RPM loads. These forged SBC domed pistons deliver the compression ratio and structural integrity serious builders depend on,...SRP140349- SKU:
- SRP140349
- Availability:
- Ships Same Business Day
- Weight:
- 13.74 LBS
- MFG Part #:
- 140349
$699.99 -
SBC Domed Piston Set 4.030 Bore 140348
SPORTSMAN RACING PRODUCTS
$699.99If you're building a small-block Chevy with serious compression goals, a quality domed piston set is non-negotiable—it directly impacts combustion efficiency, detonation resistance, and peak horsepower. These forged 4.030" pistons deliver the +7.0cc dome...SRP140348- SKU:
- SRP140348
- Availability:
- Ships Same Business Day
- Weight:
- 13.62 LBS
- MFG Part #:
- 140348
$699.99 -
SBC Dished Piston Set 4.030 Bore -24cc 139632
SPORTSMAN RACING PRODUCTS
$699.99If you're building a high-compression small block Chevy engine, piston selection directly impacts combustion efficiency, detonation resistance, and overall power output. These forged dished pistons deliver the negative chamber volume you need to achieve...SRP139632- SKU:
- SRP139632
- Availability:
- Ships Same Business Day
- Weight:
- 14.79 LBS
- MFG Part #:
- 139632
$699.99Qty in Cart: 0Quantity:Price:$699.99Subtotal: -
SBC Dished Piston Set 4.030 Bore -16cc 139628
SPORTSMAN RACING PRODUCTS
$699.99If you're building a high-compression small block Chevy engine, the relationship between piston design and combustion efficiency directly impacts horsepower and reliability. These forged dished pistons deliver a -16cc dish that optimizes compression...SRP139628- SKU:
- SRP139628
- Availability:
- Ships Same Business Day
- Weight:
- 14.34 LBS
- MFG Part #:
- 139628
$699.99Qty in Cart: 0Quantity:Price:$699.99Subtotal: -
SBC Flat Top Piston Set 4.155 Bore 138100
SPORTSMAN RACING PRODUCTS
$624.99If you're building a high-compression SBC engine or optimizing an existing platform for maximum efficiency, flat-top pistons are essential for achieving your target compression ratio and combustion chamber design. These forged units deliver the...SRP138100- SKU:
- SRP138100
- Availability:
- Ships Same Business Day
- Weight:
- 13.91 LBS
- MFG Part #:
- 138100
$624.99Qty in Cart: 0Quantity:Price:$624.99Subtotal: -
SRP Flat Top Forged Piston Set 4.155 Bore -5cc Small Block Chevy SRP138097
SPORTSMAN RACING PRODUCTS
$624.99If you're building a high-compression Small Block Chevy engine or refreshing one that's seen serious track time, piston quality directly impacts reliability and power output. These SRP forged pistons are engineered from high-silicon 4032 aluminum to...SRP138097- SKU:
- SRP138097
- Availability:
- Ships Same Business Day
- Weight:
- 15.01 LBS
- MFG Part #:
- 138097
$624.99Qty in Cart: 0Quantity:Price:$624.99Subtotal: -
SBC Flat Top Piston Set 4.060 Bore -5cc 138095
SPORTSMAN RACING PRODUCTS
$624.99When you're rebuilding a Small Block Chevy for serious performance, piston selection directly impacts combustion efficiency, durability, and peak horsepower. This forged flat-top piston set delivers the precision fitment and structural integrity needed...SRP138095- SKU:
- SRP138095
- Availability:
- Ships Same Business Day
- Weight:
- 12.45 LBS
- MFG Part #:
- 138095
$624.99 -
SBC Flat Top Piston Set 4.040 Bore -5cc 138094
SPORTSMAN RACING PRODUCTS
$624.99If you're building or rebuilding a Small Block Chevy engine, piston selection directly impacts combustion efficiency, durability, and peak power output. This forged flat-top piston set delivers the precision engineering and material quality required for...SRP138094- SKU:
- SRP138094
- Availability:
- Ships Same Business Day
- Weight:
- 12.33 LBS
- MFG Part #:
- 138094
$624.99Qty in Cart: 0Quantity:Price:$624.99Subtotal: -
SBC Flat Top Piston Set 4.030 Bore -5cc 138093
SPORTSMAN RACING PRODUCTS
$624.99If you're building or rebuilding a Small Block Chevy engine, piston selection directly impacts compression ratio, durability, and power output. These forged SBC flat tops deliver the precise geometry and material strength needed for consistent...SRP138093- SKU:
- SRP138093
- Availability:
- Ships Same Business Day
- Weight:
- 13.40 LBS
- MFG Part #:
- 138093
$624.99Qty in Cart: 0Quantity:Price:$624.99Subtotal: -
SBC Flat Top Piston Set 4.030 Bore -5cc 138089
SPORTSMAN RACING PRODUCTS
$624.99If you're rebuilding a Small Block Chevy 350 and want reliable compression gains without sacrificing durability, forged flat-top pistons are essential. The -5.0 cc dish volume raises your effective compression ratio, unlocking measurable gains in both...SRP138089- SKU:
- SRP138089
- Availability:
- Ships Same Business Day
- Weight:
- 14.32 LBS
- MFG Part #:
- 138089
$624.99 -
SBC Flat Top Piston Set 4.060 Bore -5cc 138087
SPORTSMAN RACING PRODUCTS
$624.99If you're building a high-compression SBC or refreshing a tired engine, piston selection directly impacts your power output, engine longevity, and combustion efficiency. These forged flat-top pistons deliver the durability and precision you need for...SRP138087- SKU:
- SRP138087
- Availability:
- Ships Same Business Day
- Weight:
- 14.23 LBS
- MFG Part #:
- 138087
$624.99Qty in Cart: 0Quantity:Price:$624.99Subtotal: -
SBC Flat Top Piston Set 4.040 Bore -5cc 138086
SPORTSMAN RACING PRODUCTS
$624.99If you're rebuilding a Small Block Chevy engine, piston selection directly impacts combustion efficiency, power output, and longevity. The SBC Flat Top Piston Set 4.040 Bore delivers a forged construction that withstands high RPM demands while the...SRP138086- SKU:
- SRP138086
- Availability:
- Ships Same Business Day
- Weight:
- 13.93 LBS
- MFG Part #:
- 138086
$624.99 -
SBC Flat Top Piston Set 4.040 Bore -5cc 138082
SPORTSMAN RACING PRODUCTS
$624.99Building a high-compression Small Block Chevy engine demands pistons engineered for reliability under sustained load. These forged flat-top pistons deliver the strength and precision required for both street performance and competitive racing...SRP138082- SKU:
- SRP138082
- Availability:
- Ships Same Business Day
- Weight:
- 14.78 LBS
- MFG Part #:
- 138082
$624.99Qty in Cart: 0Quantity:Price:$624.99Subtotal: -
SBC Flat Top Piston Set 4.030 Bore 138081
SPORTSMAN RACING PRODUCTS
$624.99If you're building a high-compression small block engine, piston selection directly impacts combustion efficiency, detonation resistance, and overall power output. These forged flat-top pistons deliver the compression ratio you need while maintaining the...SRP138081- SKU:
- SRP138081
- Availability:
- Ships Same Business Day
- Weight:
- 14.74 LBS
- MFG Part #:
- 138081
$624.99 -
SBC Shaft Rocker Arm Kit - 1.5/1.5 Ratio 3500
SCORPION PERFORMANCE
$1,696.82A quality rocker arm kit is the foundation of reliable valvetrain performance, directly affecting your engine's ability to breathe efficiently and maintain consistent lift across the RPM range. The SBC Shaft Rocker Arm Kit delivers the precision...SPN3500- SKU:
- SPN3500
- Availability:
- Ships Same Business Day
- Weight:
- 17.25 LBS
- MFG Part #:
- 3500
$1,696.82 -
SBC Roller Rocker Arms 1.5/1.6 Ratio 3/8 Stud 1084
SCORPION PERFORMANCE
$522.83Upgrading to roller rocker arms is one of the most cost-effective ways to unlock additional horsepower and improve valve train reliability on your small block Chevy. These full-roller designs reduce friction across the entire RPM range, allowing your...SPN1084- SKU:
- SPN1084
- Availability:
- Ships Same Business Day
- Weight:
- 6.82 LBS
- MFG Part #:
- 1084
$522.83 -
SBF Roller Rocker Arms 1.65 Ratio 7/16 Stud 1061
SCORPION PERFORMANCE
$458.46Roller rocker arms are essential for maximizing valve lift and duration in high-rpm Small Block Ford applications, directly translating to increased airflow and horsepower. The 1.65 ratio multiplier amplifies your camshaft's lift by 65%, giving you the...SPN1061- SKU:
- SPN1061
- Availability:
- Ships Same Business Day
- Weight:
- 8.43 LBS
- MFG Part #:
- 1061
$458.46 -
SBC Roller Rocker Arms 1.6 Ratio 3/8 Stud 1038
SCORPION PERFORMANCE
$491.87Roller rocker arms are essential for maximizing valve lift and duration in any serious Small Block Chevy build. By reducing friction at the pushrod interface, these rockers enable faster valve actuation, improved flow characteristics, and measurable...SPN1038- SKU:
- SPN1038
- Availability:
- Ships Same Business Day
- Weight:
- 7.06 LBS
- MFG Part #:
- 1038
$491.87 -
SBC Roller Rocker Arms 1.5 Ratio 3/8 Stud 1037
SCORPION PERFORMANCE
$491.87Roller rocker arms are essential for maximizing valve lift efficiency and reducing parasitic drag on your small block Chevy engine. The 1.5 ratio design provides a proven balance between lift multiplication and reliability, while the full roller design...SPN1037- SKU:
- SPN1037
- Availability:
- Ships Same Business Day
- Weight:
- 7.04 LBS
- MFG Part #:
- 1037
$491.87 -
SBC Roller Rocker Arms 1.6 Ratio 3/8 Stud 1036
SCORPION PERFORMANCE
$522.83Roller rocker arms are essential for maximizing valve lift and duration while reducing friction losses in your SBC engine. These full-roller designs deliver consistent, reliable performance across high-RPM applications while the narrow body profile...SPN1036- SKU:
- SPN1036
- Availability:
- Ships Same Business Day
- Weight:
- 6.80 LBS
- MFG Part #:
- 1036
$522.83Qty in Cart: 0Quantity:Price:$522.83Subtotal:
