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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Main Bearing Set MS-909P-10
MICHIGAN 77
$51.99Main bearing wear is one of the most destructive failures in high-performance engines—and catching it too late means catastrophic damage. The MS-909P-10 is engineered to restore critical bearing clearances in P-Series Small Block Chevy applications,...M77MS909P10- SKU:
- M77MS909P10
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- MFG Part #:
- MS909P10
$51.99 -
Main Bearing Set MS-909P-1
MICHIGAN 77
$54.99Main bearing wear or failure can compromise your entire engine's structural integrity and performance—replacing them with precision-manufactured bearings is essential for reliability and longevity. The MS-909P-1 delivers tight tolerances and consistent...M77MS909P1- SKU:
- M77MS909P1
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- MFG Part #:
- MS909P1
$54.99Qty in Cart: 0Quantity:Price:$54.99Subtotal: -
Main Bearing Set MS-909P
MICHIGAN 77
$51.99Main bearing failure can sideline your engine when you need it most. The MS-909P delivers the precision fit and material quality required for reliable power delivery, whether you're rebuilding stock or pushing performance limits. This complete set...M77MS909P- SKU:
- M77MS909P
- Availability:
- Ships Same Business Day
- Weight:
- 1.22 LBS
- MFG Part #:
- MS909P
$51.99 -
Main Bearing Set MS-909HX
MICHIGAN 77
$106.99Main bearings are the foundation of engine reliability—they control crankshaft clearance and oil distribution under extreme loads. The MS-909HX delivers precision-engineered geometry with optimized clearances to support sustained high RPM operation while...M77MS909HX- SKU:
- M77MS909HX
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MFG Part #:
- MS909HX
$106.99 -
Main Bearing Set MS-909H-9
MICHIGAN 77
$98.99Precision main bearings are the foundation of engine reliability—they manage critical loads and maintain strict clearances that directly impact power output and longevity. The MS-909H-9 is engineered for Small Block Chevy builds that demand OEM-grade...M77MS909H9- SKU:
- M77MS909H9
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
- MFG Part #:
- MS909H9
$98.99 -
Main Bearing Set MS-909H-21
MICHIGAN 77
$97.99A worn or damaged main bearing set directly compromises engine block integrity and can lead to catastrophic failure under racing conditions. The MS-909H-21 delivers the precision tolerances and material quality your Small Block Chevy engine demands,...M77MS909H21- SKU:
- M77MS909H21
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- MFG Part #:
- MS909H21
$97.99 -
Main Bearing Set MS-909H-20
MICHIGAN 77
$98.99If you're rebuilding a Small Block Chevy engine or restoring one that's suffered bearing wear, a quality main bearing set is non-negotiable for reliability and longevity. The MS-909H-20 delivers the precision tolerances your engine demands, ensuring...M77MS909H20- SKU:
- M77MS909H20
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- MFG Part #:
- MS909H20
$98.99 -
Main Bearing Set MS-909H-19
MICHIGAN 77
$109.99A quality main bearing set is fundamental to engine longevity and reliability—especially in high-performance applications where precise clearances directly impact oil flow, load distribution, and overall engine durability. The MS-909H-19 delivers the...M77MS909H19- SKU:
- M77MS909H19
- Availability:
- Ships Same Business Day
- Weight:
- 1.34 LBS
- MFG Part #:
- MS909H19
$109.99Qty in Cart: 0Quantity:Price:$109.99Subtotal: -
Main Bearing Set MS-909H-10
MICHIGAN 77
$101.99A properly sized main bearing set is critical for engine longevity and reliable performance under load. The MS-909H-10 delivers precision-engineered tolerances that minimize friction, reduce wear, and maintain critical oil clearances in your Small Block...M77MS909H10- SKU:
- M77MS909H10
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- MFG Part #:
- MS909H10
$101.99 -
Main Bearing Set MS-909H-1
MICHIGAN 77
$106.99A worn or improperly sized main bearing set will compromise your Small Block Chevy's reliability and power delivery—especially under boost or sustained high RPM operation. The MS-909H-1 delivers the precision fit and material durability required for...M77MS909H1- SKU:
- M77MS909H1
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- MFG Part #:
- MS909H1
$106.99 -
Main Bearing Set MS-909H
MICHIGAN 77
$88.99Main bearing wear is one of the most common failure points in high-mileage engines, directly affecting oil pressure, engine longevity, and overall performance. The MS-909H delivers factory-spec tolerances with premium materials, ensuring your Small Block...M77MS909H- SKU:
- M77MS909H
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MFG Part #:
- MS909H
$88.99 -
Main Bearing Set MS-590P-30
MICHIGAN 77
$34.99A properly sized main bearing set is the foundation of engine reliability and longevity. If you're rebuilding a Small Block Ford or have worn OEM bearings showing increased clearances, the MS-590P-30 delivers the precision fit needed to restore proper...M77MS590P30- SKU:
- M77MS590P30
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- MS590P30
$34.99 -
Main Bearing Set MS-590P-20
MICHIGAN 77
$61.99A properly sized main bearing set is critical to engine longevity and reliability—it directly impacts oil flow, reduces friction, and prevents catastrophic bearing failure under load. The MS-590P-20 is engineered for Small Block Ford engines requiring 0...M77MS590P20- SKU:
- M77MS590P20
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- MFG Part #:
- MS590P20
$61.99 -
Main Bearing Set MS-590P-10
MICHIGAN 77
$61.99A properly fitted main bearing set is critical to engine block integrity and long-term reliability, especially in high-performance or rebuilt small block Ford engines. The MS-590P-10 delivers precision-engineered components that maintain proper...M77MS590P10- SKU:
- M77MS590P10
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- MS590P10
$61.99 -
Main Bearing Set MS-590P
MICHIGAN 77
$61.99A quality main bearing set is foundational to engine reliability and longevity, especially in high-performance and racing applications where loads are extreme. The MS-590P delivers OEM-grade precision with tight tolerances to ensure proper oil film...M77MS590P- SKU:
- M77MS590P
- Availability:
- Ships Same Business Day
- Weight:
- 1.09 LBS
- MFG Part #:
- MS590P
$61.99 -
Main Bearing Set MS-590HX
MICHIGAN 77
$114.99A quality main bearing set is critical to engine longevity and reliability—especially in high-performance or high-mileage Small Block Ford engines. The MS-590HX delivers extra oil clearance to accommodate tighter tolerances and elevated RPMs, ensuring...M77MS590HX- SKU:
- M77MS590HX
- Availability:
- Ships Same Business Day
- Weight:
- 1.08 LBS
- MFG Part #:
- MS590HX
$114.99Qty in Cart: 0Quantity:Price:$114.99Subtotal: -
Main Bearing Set MS-590H-10
MICHIGAN 77
$119.99Main bearing clearance is critical to engine longevity—inadequate fit leads to accelerated wear, oil starvation, and catastrophic failure. The MS-590H-10 delivers precision-engineered geometry with a 0.010" undersize specifically matched to Small Block...M77MS590H10- SKU:
- M77MS590H10
- Availability:
- Ships Same Business Day
- Weight:
- 1.18 LBS
- MFG Part #:
- MS590H10
$119.99 -
Main Bearing Set MS-590H-1
MICHIGAN 77
$112.99A quality main bearing set is foundational to engine reliability and longevity, especially in high-performance or rebuilt applications. The MS-590H-1 delivers precise tolerances and robust construction to handle sustained load and RPM demands. If you're...M77MS590H1- SKU:
- M77MS590H1
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MFG Part #:
- MS590H1
$112.99 -
Main Bearing Set MS-590H
MICHIGAN 77
$97.99Main bearing wear is one of the most common failure points in high-mileage Small Block Ford engines, directly impacting oil pressure, engine longevity, and overall reliability. The MS-590H delivers OEM-spec fitment and material quality without the...M77MS590H- SKU:
- M77MS590H
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- MS590H
$97.99 -
Main Bearing Set MS-429P-30
MICHIGAN 77
$81.99A proper main bearing set is critical to engine longevity and reliable power delivery—worn or incorrectly sized bearings lead to catastrophic failure. The MS-429P-30 delivers precise fitment for P-Series Small Block Chevy applications with its 0.030"...M77MS429P30- SKU:
- M77MS429P30
- Availability:
- Ships Same Business Day
- Weight:
- 1.28 LBS
- MFG Part #:
- MS429P30
$81.99
