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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Piston Ring Set 4.040 1/16 1/16 3/16 SEAR9902-40
SEALED POWER
$144.99Maintaining proper ring seal is critical to engine efficiency and longevity—worn or inadequate piston rings cause compression loss, oil burn, and accelerated wear. The Speed Pro 4.040 Piston Ring Set...SEAR9902-40- SKU:
- SEAR9902-40
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- R990240
$144.99 -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR9902-30
SEALED POWER
$144.99Proper ring seal is non-negotiable for peak combustion pressure and oil control—cheap rings cost you horsepower and engine longevity. This Speed Pro set delivers plasma moly construction with...SEAR9902-30- SKU:
- SEAR9902-30
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- R990230
$144.99 -
Piston Ring Set 4.020 1/16 1/16 3/16 SEAR9902-20
SEALED POWER
$167.99Maintaining proper ring seal is critical to engine longevity and performance—any blow-by robs you of compression, power, and fuel economy. This Speed Pro piston ring set delivers plasma moly...SEAR9902-20- SKU:
- SEAR9902-20
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- R990220
$167.99Qty in Cart: 0Quantity:Price:$167.99Subtotal: -
Piston Ring Set 4.060 1/16 1/16 3/16 SEAR9771-65
SEALED POWER
$144.99Piston ring quality directly impacts compression, blow-by control, and engine longevity—making this Plasma Moly set from Speed Pro an essential upgrade for serious rebuilds. File-fit construction...SEAR9771-65- SKU:
- SEAR9771-65
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- R977165
$144.99 -
Piston Ring Set 4.040 1/16 1/16 3/16 SEAR9771-45
SEALED POWER
$144.99Piston rings are critical to engine efficiency—they seal combustion pressure, regulate oil consumption, and prevent blowby that robs your engine of power. This Speed Pro kit delivers plasma...SEAR9771-45- SKU:
- SEAR9771-45
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- MFG Part #:
- R977145
$144.99 -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR9771-35
SEALED POWER
$144.99Proper ring seal is foundational to engine efficiency and longevity—worn or inadequate piston rings lead to blow-by, oil consumption, and lost compression that compromises both power delivery and...SEAR9771-35- SKU:
- SEAR9771-35
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- R977135
$144.99 -
Piston Ring Set 4.060 1/16 1/16 3/16 SEAR9401-65
SEALED POWER
$211.99Piston rings are critical to engine compression, blow-by control, and oil management—and a quality ring set directly impacts your engine's power output and longevity. The Speed Pro 4.060 ring set...SEAR9401-65- SKU:
- SEAR9401-65
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- MFG Part #:
- R940165
$211.99 -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR9401-35
SEALED POWER
$147.99Piston ring degradation directly impacts compression, blow-by, and oil consumption—making a quality ring set essential for any rebuild or engine refresh. The Speed Pro SEAR9401-35 delivers file-fit...SEAR9401-35- SKU:
- SEAR9401-35
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- R940135
$147.99 -
Piston Ring Set 4.185 1/16 1/16 3/16 SEAR9346-65
SEALED POWER
$244.99Piston ring sets are critical to engine longevity and performance—they seal combustion pressure, control oil consumption, and manage heat transfer between the piston and cylinder wall. A quality ring...SEAR9346-65- SKU:
- SEAR9346-65
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- MFG Part #:
- R934665
$244.99 -
Piston Ring Set 4.125 1/16 1/16 3/16 SEAR9346-5
SEALED POWER
$219.99Piston rings are critical to engine performance—they seal combustion pressure, control oil consumption, and maintain ring-to-wall contact across the entire stroke. A quality ring set like this Speed...SEAR9346-5- SKU:
- SEAR9346-5
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
- MFG Part #:
- R93465
$219.99 -
Piston Ring Set 4.165 1/16 1/16 3/16 SEAR9346-45
SEALED POWER
$219.99Piston rings are the critical seal between your pistons and cylinder walls—wear them out, and you're looking at blow-by, oil consumption, and lost compression. This Speed Pro file-fit set delivers...SEAR9346-45- SKU:
- SEAR9346-45
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MFG Part #:
- R934645
$219.99 -
Piston Ring Set 4.155 1/16 1/16 3/16 SEAR9346-35
SEALED POWER
$219.99Piston rings are the critical seal between your combustion chamber and crankcase—wear them out, and you're looking at blow-by, lost compression, and degraded performance. This Speed Pro ring set...SEAR9346-35- SKU:
- SEAR9346-35
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MFG Part #:
- R934635
$219.99 -
Piston Ring Set 4.000 5/64 5/64 3/16 SEAR9343-5
SEALED POWER
$194.99A quality piston ring set is fundamental to engine longevity and performance—poor ring sealing leads to blow-by, oil consumption, and lost compression. Speed Pro's plasma moly construction delivers...SEAR9343-5- SKU:
- SEAR9343-5
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R93435
$194.99 -
Piston Ring Set 4.040 5/64 5/64 3/16 SEAR9343-45
SEALED POWER
$185.99A precision piston ring set is critical for maintaining proper compression, controlling blow-by, and ensuring ring seal integrity during high-RPM operation. Speed Pro's plasma moly construction...SEAR9343-45- SKU:
- SEAR9343-45
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R934345
$185.99 -
Piston Ring Set 4.030 5/64 5/64 3/16 SEAR9343-35
SEALED POWER
$166.99A quality piston ring set is foundational to engine performance and longevity. These Speed Pro rings deliver reliable sealing and minimal blowby across the RPM range, which translates to better...SEAR9343-35- SKU:
- SEAR9343-35
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R934335
$166.99 -
Piston Ring Set 4.030 1/16 1/16 1/8 SEAR9342-35
SEALED POWER
$210.99Piston ring performance directly impacts compression efficiency, blow-by control, and engine longevity—making quality ring selection critical for any serious rebuild or performance application. Speed...SEAR9342-35- SKU:
- SEAR9342-35
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- MFG Part #:
- R934235
$210.99 -
Piston Ring Set 4.060 1/16 1/16 3/16 SEAR8902-60
SEALED POWER
$110.99Proper ring seal is fundamental to engine performance and longevity. This Speed Pro Claimer Series piston ring set delivers consistent compression and blowby control across the entire RPM range,...SEAR8902-60- SKU:
- SEAR8902-60
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- MFG Part #:
- R890260
$110.99 -
Piston Ring Set 4.040 1/16 1/16 3/16 SEAR8902-40
SEALED POWER
$113.99Proper piston ring sealing is critical to engine efficiency and longevity. A quality ring set minimizes blow-by, maintains compression, and preserves oil consumption rates—directly impacting power...SEAR8902-40- SKU:
- SEAR8902-40
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- R890240
$113.99Qty in Cart: 0Quantity:Price:$113.99Subtotal: -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR8902-30
SEALED POWER
$128.99Piston rings are critical to engine sealing and compression—they directly impact power output, fuel efficiency, and engine longevity. This Speed Pro Claimer Series set delivers OEM-level performance...SEAR8902-30- SKU:
- SEAR8902-30
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- R890230
$128.99Qty in Cart: 0Quantity:Price:$128.99Subtotal: -
Piston Ring Set 4.155 1/16 1/16 3/16 R837530
SEALED POWER
$166.99Proper ring seal is fundamental to engine performance—without it, you're losing compression, burning oil, and sacrificing horsepower. The Speed Pro Claimer Series R837530 delivers the reliable...SEAR8375-30- SKU:
- SEAR8375-30
- Availability:
- Ships Same Business Day
- Weight:
- 1.02 LBS
- MFG Part #:
- R837530
$166.99
