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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Dart Main Cap - SBC Little M Block 32731030H
DART
$110.70A quality main cap is critical for small block Chevy engine reliability and longevity. This Dart rear main cap is engineered for precision fitment and durability, ensuring your engine block maintains structural integrity under load. Whether you're...DRT32731030H- SKU:
- DRT32731030H
- Availability:
- Ships Same Business Day
- Weight:
- 2.98 LBS
- MFG Part #:
- 32731030H
$110.70Qty in Cart: 0Quantity:Price:$110.70Subtotal: -
Dart LS SHP Iron Block 9.240 Deck/4.125 Bore 31867211
DART
$3,999.99Building a high-displacement LS engine demands a foundation that won't compromise under extreme power levels. The Dart LS SHP Iron Block delivers the structural integrity and precision bore sizing needed for forced induction, nitrous, or naturally...DRT31867211- SKU:
- DRT31867211
- Availability:
- Ships Same Business Day
- Weight:
- 212.00 LBS
- MFG Part #:
- 31867211
$3,999.99Qty in Cart: 0Quantity:Price:$3,999.99Subtotal: -
Dart LS SHP Iron Block 9.240 Deck/4.000 Bore 31867111
DART
$3,999.99The Dart LS SHP Iron Block is purpose-built for serious LS engine builders who demand reliability without compromise. Its ductile iron construction provides superior strength for high-boost applications and aggressive cylinder pressures, while the 4.000"...DRT31867111- SKU:
- DRT31867111
- Availability:
- Ships Same Business Day
- Weight:
- 185.00 LBS
- MFG Part #:
- 31867111
$3,999.99Qty in Cart: 0Quantity:Price:$3,999.99Subtotal: -
Dart LS Iron Block - 9.240/ 4.000 w/Steel Main Caps 31837111
DART
$4,499.99The LS platform dominates performance builds, but factory design compromises—poor windage control, inadequate oiling, and separated crankcase bays—leave serious power on the table. The Dart LS Next Iron Block solves these fundamental issues with a...DRT31837111- SKU:
- DRT31837111
- Availability:
- Ships Same Business Day
- Weight:
- 238.00 LBS
- MFG Part #:
- 31837111
$4,499.99Qty in Cart: 0Quantity:Price:$4,499.99Subtotal: -
Dart SBC SHP Iron Block 9.025 4.125/400 31162211
DART
$2,299.99Whether you're building a street-dominating small-block or a competition engine, the Dart SBC SHP Iron Block gives you a proven foundation with the strength to handle serious power. This bare block accepts a wide range of internal components, making it...DRT31162211- SKU:
- DRT31162211
- Availability:
- Ships Same Business Day
- Weight:
- 178.00 LBS
- MFG Part #:
- 31162211
$2,299.99Qty in Cart: 0Quantity:Price:$2,299.99Subtotal: -
Dart SBC Pro SHP Iron Block - 9.025 4.125/350 31161212
DART
$3,799.99The Dart SBC Pro SHP Iron Block delivers the foundation your small block build needs for serious performance and reliability. Built with a robust iron construction and professional-grade machining, this block handles high-horsepower applications while...DRT31161212- SKU:
- DRT31161212
- Availability:
- Ships Same Business Day
- Weight:
- 182.00 LBS
- MFG Part #:
- 31161212
$3,799.99Qty in Cart: 0Quantity:Price:$3,799.99Subtotal: -
Dart SBC SHP Iron Block - 9.025 4.125/350 31161211
DART
$2,299.99The Dart SBC SHP Iron Block delivers the foundation your Small Block Chevy build demands—engineered for both street and competition applications with a proven iron construction that handles sustained high-RPM operation. Whether you're building a 350...DRT31161211- SKU:
- DRT31161211
- Availability:
- Ships Same Business Day
- Weight:
- 176.00 LBS
- MFG Part #:
- 31161211
$2,299.99Qty in Cart: 0Quantity:Price:$2,299.99Subtotal: -
Dart SBC Pro SHP Iron Block - 9.025 4.000/350 31161112
DART
$3,799.99The Dart SBC Pro SHP Iron Block is engineered for builders who demand a solid foundation for high-output small-block Chevy engines. This bare block delivers the structural integrity and precision CNC-machining necessary for forced induction, nitrous, or...DRT31161112- SKU:
- DRT31161112
- Availability:
- Ships Same Business Day
- Weight:
- 192.00 LBS
- MFG Part #:
- 31161112
$3,799.99Qty in Cart: 0Quantity:Price:$3,799.99Subtotal: -
Dart SBC SHP Iron Block - 9.025 4.000/350 31161111
DART
$2,299.99The Dart SBC SHP Iron Block delivers the reliability and structural integrity demanded by serious Small Block Chevy builders. Whether you're assembling a streetable 350 or blueprinting a competition engine, this bare block provides a proven foundation...DRT31161111- SKU:
- DRT31161111
- Availability:
- Ships Same Business Day
- Weight:
- 186.00 LBS
- MFG Part #:
- 31161111
$2,299.99Qty in Cart: 0Quantity:Price:$2,299.99Subtotal: -
Dart SBC Parts Kit - (1) Head 2.02/1.60 1.250 Spring 28111000
DART
$184.26Building a high-revving Small Block Chevy engine demands valve train components engineered for reliability under sustained boost and RPM. This Dart SBC Parts Kit delivers a complete head assembly with premium stainless steel valves and properly matched...DRT28111000- SKU:
- DRT28111000
- Availability:
- Ships Same Business Day
- Weight:
- 5.59 LBS
- MFG Part #:
- 28111000
$184.26 -
Dart SBF 195cc Pro-1 Head 62cc 2.02/1.60 Assm. 13211112
DART
$1,236.96The Dart SBF 195cc Pro-1 Head delivers the flow and combustion efficiency needed to unlock real horsepower gains in your Small Block Ford. With a proven 195cc intake runner and optimized 62cc chamber, this assembled head is engineered for street and...DRT13211112- SKU:
- DRT13211112
- Availability:
- Ships Same Business Day
- Weight:
- 30.30 LBS
- MFG Part #:
- 13211112
$1,236.96Qty in Cart: 0Quantity:Price:$1,236.96Subtotal: -
Dart SBF 195cc Pro-1 Head 58cc 2.02/1.60 Bare 13200010
DART
$872.89The Dart SBF 195cc Pro-1 head delivers the airflow and combustion efficiency you need to extract serious horsepower from your small-block Ford engine. Whether you're building a street performer or race-ready platform, this bare aluminum casting provides...DRT13200010- SKU:
- DRT13200010
- Availability:
- Ships Same Business Day
- Weight:
- 23.50 LBS
- MFG Part #:
- 13200010
$872.89 -
Dart SBC 227cc Pro-1 Head 66cc A/P 2.08/1.60 Assm. 11971143P
DART
$2,241.57The Dart SBC 227cc Pro-1 Head delivers the airflow and combustion efficiency your Small Block Chevy needs to maximize horsepower and torque across the RPM range. CNC-ported Pro-1 design combined with optimized chamber geometry ensures consistent...DRT11971143P- SKU:
- DRT11971143P
- Availability:
- Ships Same Business Day
- Weight:
- 26.60 LBS
- MFG Part #:
- 11971143P
$2,241.57Qty in Cart: 0Quantity:Price:$2,241.57Subtotal: -
Dart SBC 200cc Pro-1 Head 64cc A/P 2.02/1.60 Bare 11310010P
DART
$873.04The Dart SBC 200cc Pro-1 Head delivers the flow characteristics serious small-block builders demand without the premium price tag of fully-assembled alternatives. With a 200cc intake runner and efficient 64cc combustion chamber, this bare head provides...DRT11310010P- SKU:
- DRT11310010P
- Availability:
- Ships Same Business Day
- Weight:
- 22.85 LBS
- MFG Part #:
- 11310010P
$873.04Qty in Cart: 0Quantity:Price:$873.04Subtotal: -
Dart SBC 165cc I/E Head 76cc 1.94/1.50 Bare 10024360
DART
$426.46The Dart SBC 165cc I/E Head delivers the flow characteristics and combustion efficiency your small block Chevy needs for serious power gains. With a 76cc chamber and premium Iron Eagle S/S construction, this bare head provides a solid foundation for...DRT10024360- SKU:
- DRT10024360
- Availability:
- Ships Same Business Day
- Weight:
- 48.03 LBS
- MFG Part #:
- 10024360
$426.46Qty in Cart: 0Quantity:Price:$426.46Subtotal: -
Dart Iron Eagle S/S SBC Cylinder Head 10024267
DART
$426.46The Dart Iron Eagle S/S SBC cylinder head delivers the flow characteristics and durability demanded by small-block Chevy builders who refuse to compromise on performance. With a proven 165cc intake runner and optimized chamber design, this bare head...DRT10024267- SKU:
- DRT10024267
- Availability:
- Ships Same Business Day
- Weight:
- 48.25 LBS
- MFG Part #:
- 10024267
$426.46Qty in Cart: 0Quantity:Price:$426.46Subtotal: -
Roller Lifters E/M - SBC w/Offset Intake 66292X903E-16
CROWER
$1,518.99Mechanical roller lifters deliver consistent valve lift with reduced friction and wear compared to flat-tappet designs, translating to improved engine efficiency and longevity in high-RPM applications. The EnduraMax construction ensures reliability under...CRO66292X903E-16- SKU:
- CRO66292X903E-16
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MFG Part #:
- 66292X903E-16
$1,518.99 -
Comp Cams Ford V8 Solid Lifters (Sbf 1969-Present) 833-16
COMP CAMS
$205.95Solid lifters are essential for high-RPM applications where valve train stability and precise timing control are non-negotiable. If you're building a performance small block Ford or running sustained boost, these Comp Cams mechanical flat tappet lifters...COM833-16- SKU:
- COM833-16
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- MFG Part #:
- 833-16
$205.95 -
Comp Cams Ford V8 Hi-Energy Hyd. Lifters 832-16
COMP CAMS
$120.95Hydraulic flat-tappet lifters are the foundation of reliable valve actuation in classic and modified Ford V8 engines. Comp Cams' Hi-Energy design delivers consistent oil pressure and reduced wear, ensuring your engine maintains precision timing across...COM832-16- SKU:
- COM832-16
- Availability:
- Ships Same Business Day
- Weight:
- 3.89 LBS
- MFG Part #:
- 832-16
$120.95 -
Comp Cams 3/8 Hi-Tech Pushrods - 8.050 Long 7985-16
COMP CAMS
$221.95Pushrods are the critical link between your camshaft and rocker arms—and cheap ones will cost you reliability and performance. Comp Cams Hi-Tech Pushrods deliver the precision tolerances and durability that professional engine builders demand, with 0...COM7985-16- SKU:
- COM7985-16
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- MFG Part #:
- 7985-16
$221.95
