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 4.030 1/16 1/16 1/8 SEAR9968-30
SEALED POWER
$161.99Piston Rings - Speed Pro - 4.030 in Bore - 1/16 x 1/16 x 1/8 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9968-30- SKU:
- SEAR9968-30
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- MFG Part #:
- R996830
$161.99 -
Piston Ring Set 4.030 5/64 5/64 3/16 SEAR9903-30
SEALED POWER
$166.99Piston Rings - Speed Pro - 4.030 in Bore - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9903-30- SKU:
- SEAR9903-30
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MFG Part #:
- R990330
$166.99 -
Piston Ring Set 4.000 5/64 5/64 3/16 R9903
SEALED POWER
$169.99Piston RingsSpeed Pro4.000 in Bore5/64 x 5/64 x 3/16 in ThickStandard TensionPlasma Moly8 CylinderKitSEAR9903- SKU:
- SEAR9903
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R9903
$169.99 -
Piston Ring Set 4.060 1/16 1/16 3/16 SEAR9902-60
SEALED POWER
$138.99Piston Rings - Speed Pro - 4.060 in Bore - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9902-60- SKU:
- SEAR9902-60
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- R990260
$138.99 -
Piston Ring Set 4.040 1/16 1/16 3/16 SEAR9902-40
SEALED POWER
$138.99Piston Rings - Speed Pro - 4.040 in Bore - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9902-40- SKU:
- SEAR9902-40
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- R990240
$138.99 -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR9902-30
SEALED POWER
$138.99Piston Rings - Speed Pro - 4.030 in Bore - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9902-30- SKU:
- SEAR9902-30
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- R990230
$138.99 -
Piston Ring Set 4.020 1/16 1/16 3/16 SEAR9902-20
SEALED POWER
$148.99Piston Rings - Speed Pro - 4.020 in Bore - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9902-20- SKU:
- SEAR9902-20
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- R990220
$148.99 -
Piston Ring Set 4.060 1/16 1/16 3/16 SEAR9771-65
SEALED POWER
$132.99Piston Rings - Speed Pro - 4.060 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9771-65- SKU:
- SEAR9771-65
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- R977165
$132.99 -
Piston Ring Set 4.040 1/16 1/16 3/16 SEAR9771-45
SEALED POWER
$132.99Piston Rings - Speed Pro - 4.040 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9771-45- SKU:
- SEAR9771-45
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- MFG Part #:
- R977145
$132.99 -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR9771-35
SEALED POWER
$134.99Piston Rings - Speed Pro - 4.030 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9771-35- SKU:
- SEAR9771-35
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- R977135
$134.99 -
Piston Ring Set 4.060 1/16 1/16 3/16 SEAR9401-65
SEALED POWER
$140.99Piston Rings - Speed Pro - 4.060 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Plasma Moly - 8 Cylinder - KitSEAR9401-65- SKU:
- SEAR9401-65
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- MFG Part #:
- R940165
$140.99 -
Piston Ring Set 4.030 1/16 1/16 3/16 SEAR9401-35
SEALED POWER
$138.99Piston Rings - Speed Pro - 4.030 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Plasma Moly - 8 Cylinder - KitSEAR9401-35- SKU:
- SEAR9401-35
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- R940135
$138.99 -
Piston Ring Set 4.185 1/16 1/16 3/16 SEAR9346-65
SEALED POWER
$187.99Piston Rings - Speed Pro - 4.185 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Plasma Moly - 8 Cylinder - KitSEAR9346-65- SKU:
- SEAR9346-65
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- MFG Part #:
- R934665
$187.99Qty in Cart: 0Quantity:Price:$187.99Subtotal: -
Piston Ring Set 4.125 1/16 1/16 3/16 SEAR9346-5
SEALED POWER
$189.99Piston Rings - Speed Pro - 4.125 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Plasma Moly - 8 Cylinder - KitSEAR9346-5- SKU:
- SEAR9346-5
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
- MFG Part #:
- R93465
$189.99 -
Piston Ring Set 4.165 1/16 1/16 3/16 SEAR9346-45
SEALED POWER
$191.99Piston Rings - Speed Pro - 4.165 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Plasma Moly - 8 Cylinder - KitSEAR9346-45- SKU:
- SEAR9346-45
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MFG Part #:
- R934645
$191.99 -
Piston Ring Set 4.155 1/16 1/16 3/16 SEAR9346-35
SEALED POWER
$191.99Piston Rings - Speed Pro - 4.155 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Low Tension - Plasma Moly - 8 Cylinder - KitSEAR9346-35- SKU:
- SEAR9346-35
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MFG Part #:
- R934635
$191.99 -
Piston Ring Set 4.000 5/64 5/64 3/16 SEAR9343-5
SEALED POWER
$178.99Piston Rings - Speed Pro - 4.000 in Bore - File Fit - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9343-5- SKU:
- SEAR9343-5
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R93435
$178.99 -
Piston Ring Set 4.040 5/64 5/64 3/16 SEAR9343-45
SEALED POWER
$173.99Piston Rings - Speed Pro - 4.040 in Bore - File Fit - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9343-45- SKU:
- SEAR9343-45
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R934345
$173.99 -
Piston Ring Set 4.030 5/64 5/64 3/16 SEAR9343-35
SEALED POWER
$143.99Piston Rings - Speed Pro - 4.030 in Bore - File Fit - 5/64 x 5/64 x 3/16 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9343-35- SKU:
- SEAR9343-35
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- MFG Part #:
- R934335
$143.99 -
Piston Ring Set 4.030 1/16 1/16 1/8 SEAR9342-35
SEALED POWER
$183.99Piston Rings - Speed Pro - 4.030 in Bore - File Fit - 1/16 x 1/16 x 1/8 in Thick - Standard Tension - Plasma Moly - 8 Cylinder - KitSEAR9342-35- SKU:
- SEAR9342-35
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- MFG Part #:
- R934235
$183.99
