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
-
SBC 6.75 Steel Harmonic Balancer - Non SFI PB2221ST
POWER BOND BALANCERS
$151.99The harmonic balancer is critical to engine longevity—it isolates destructive crankshaft vibrations that can lead to premature wear and catastrophic failure. This steel construction delivers the mass needed to effectively dampen harmonics across a wide...PBBPB2221-ST- SKU:
- PBBPB2221-ST
- Availability:
- Ships Same Business Day
- Weight:
- 8.45 LBS
- MFG Part #:
- PB2221ST
$151.99 -
SBC 6.750 SFI 18.1 Steel Harmonic Balancer PB2221SS
POWER BOND BALANCERS
$228.99Harmonic imbalance at high RPM doesn't just waste power—it accelerates wear on your crankshaft, bearings, and block. The SBC 6.750 SFI 18.1 Steel Harmonic Balancer eliminates destructive vibration with precision engineering and SFI certification, giving...PBBPB2221-SS- SKU:
- PBBPB2221-SS
- Availability:
- Ships Same Business Day
- Weight:
- 8.75 LBS
- MFG Part #:
- PB2221SS
$228.99 -
SBC 7in Steel Harmonic Balancer - Non-SFI PB2221N
POWER BOND BALANCERS
$60.99Harmonic balancers are critical to engine longevity—they absorb destructive crankshaft vibrations that can lead to premature failure and performance loss. This steel construction balancer is engineered for Small Block Chevy engines that run internal...PBBPB2221-N- SKU:
- PBBPB2221-N
- Availability:
- Ships Same Business Day
- Weight:
- 8.77 LBS
- MFG Part #:
- PB2221N
$60.99 -
SBF 6.375 in Steel Harmonic Balancer - SFI PB1479SS
POWER BOND BALANCERS
$264.99Harmonic balancers are critical to engine reliability, and a lightweight racing unit reduces rotational mass while maintaining the damping characteristics your engine needs under high RPM conditions. This SBF balancer delivers SFI 18.1 certification for...PBBPB1479-SS- SKU:
- PBBPB1479-SS
- Availability:
- Ships Same Business Day
- Weight:
- 7.23 LBS
- MFG Part #:
- PB1479SS
$264.99 -
SBF 28oz. Steel Harmonic Balancer - Non-SFI PB1214N
POWER BOND BALANCERS
$99.99Harmonic balancers are critical to engine longevity—they absorb crankshaft vibrations that would otherwise cause premature wear and failure. This SBF steel balancer delivers the external balance characteristics your Small Block Ford needs for smooth...PBBPB1214-N- SKU:
- PBBPB1214-N
- Availability:
- Ships Same Business Day
- Weight:
- 8.05 LBS
- MFG Part #:
- PB1214N
$99.99 -
SBC 7in Steel Harmonic Balancer - SFI PB1118SS
POWER BOND BALANCERS
$264.99Harmonic balancers are critical to engine longevity—they absorb vibrations that would otherwise crack your crankshaft and compromise reliability. This SBC unit combines race-proven lightweight construction with SFI certification, giving you the...PBBPB1118-SS- SKU:
- PBBPB1118-SS
- Availability:
- Ships Same Business Day
- Weight:
- 7.34 LBS
- MFG Part #:
- PB1118SS
$264.99 -
SBF Steel Harmonic Balancer - SFI PB1086SS
POWER BOND BALANCERS
$249.99Harmonic balancers are critical to engine reliability, and this SBF steel unit eliminates vibration that can crack cranks and damage bearings over time. Built to SFI 18.1 specifications, it's engineered for high-RPM racing where precision damping...PBBPB1086-SS- SKU:
- PBBPB1086-SS
- Availability:
- Ships Same Business Day
- Weight:
- 9.38 LBS
- MFG Part #:
- PB1086SS
$249.99 -
SBF 50oz. Steel Harmonic Balancer - Non SFI PB1084ST
POWER BOND BALANCERS
$185.99A harmonic balancer is critical for managing crankshaft vibration in high-RPM environments—without proper dampening, you risk premature bearing wear and potential catastrophic failure. This SBF 50oz. steel unit provides the external balance weight your...PBBPB1084-ST- SKU:
- PBBPB1084-ST
- Availability:
- Ships Same Business Day
- Weight:
- 7.84 LBS
- MFG Part #:
- PB1084ST
$185.99 -
SBF 50oz. Steel Harmonic Balancer - SFI PB1084SS
POWER BOND BALANCERS
$281.99The SBF 50oz. Steel Harmonic Balancer is engineered to eliminate destructive crankshaft vibration in high-rpm Small Block Ford engines, protecting your rotating assembly and extending engine longevity. Built to SFI 18.1 specifications, this steel...PBBPB1084-SS- SKU:
- PBBPB1084-SS
- Availability:
- Ships Same Business Day
- Weight:
- 10.86 LBS
- MFG Part #:
- PB1084SS
$281.99Qty in Cart: 0Quantity:Price:$281.99Subtotal: -
SBF 50oz. Steel Harmonic Balancer - Non-SFI PB1084N
POWER BOND BALANCERS
$109.99Harmonic balancers are critical for engine longevity—they absorb destructive vibrations that can crack cranks and damage bearings over time. This SBF balancer delivers proven reliability for Small Block Ford engines running external balance...PBBPB1084-N- SKU:
- PBBPB1084-N
- Availability:
- Ships Same Business Day
- Weight:
- 9.44 LBS
- MFG Part #:
- PB1084N
$109.99 -
SBF 28oz. Steel Harmonic Balancer - Non SFI PB1082ST
POWER BOND BALANCERS
$234.99Harmonic balancers are critical to engine longevity—they absorb crankshaft vibrations that can lead to premature wear, bearing failure, and catastrophic damage. This SBF 28oz. steel balancer is purpose-built for street-driven Ford Cleveland and modified...PBBPB1082-ST- SKU:
- PBBPB1082-ST
- Availability:
- Ships Same Business Day
- Weight:
- 9.71 LBS
- MFG Part #:
- PB1082ST
$234.99Qty in Cart: 0Quantity:Price:$234.99Subtotal: -
SBF 28oz. Steel Harmonic Balancer - SFI PB1082SS
POWER BOND BALANCERS
$310.99If you're running a high-RPM SBF engine, harmonic imbalance will wear your crankshaft, damage bearings, and rob you of power. This SFI-certified steel balancer eliminates destructive vibration while maintaining the precise 28oz external balance your...PBBPB1082-SS- SKU:
- PBBPB1082-SS
- Availability:
- Ships Same Business Day
- Weight:
- 11.51 LBS
- MFG Part #:
- PB1082SS
$310.99 -
SBF 28oz. Steel Harmonic Balancer - Non SFI PB1060ST
POWER BOND BALANCERS
$232.99A properly balanced crankshaft is fundamental to engine longevity and smooth operation, especially in high-RPM applications. This SBF harmonic balancer absorbs torsional vibrations that would otherwise accelerate wear on bearings, seals, and the...PBBPB1060-ST- SKU:
- PBBPB1060-ST
- Availability:
- Ships Same Business Day
- Weight:
- 10.22 LBS
- MFG Part #:
- PB1060ST
$232.99 -
SBF 28oz. Steel Harmonic Balancer - SFI PB1060SS
POWER BOND BALANCERS
$269.99Harmonic balancers are critical to engine longevity—they absorb destructive crankshaft vibrations that can lead to premature wear, flex, and catastrophic failure. This SBF 28oz. steel balancer combines race-proven construction with SFI certification,...PBBPB1060-SS- SKU:
- PBBPB1060-SS
- Availability:
- Ships Same Business Day
- Weight:
- 12.37 LBS
- MFG Part #:
- PB1060SS
$269.99 -
SBC 8in Steel Harmonic Balancer - Non SFI PB1050ST
POWER BOND BALANCERS
$181.99Harmonic balancers are critical to engine longevity—they absorb destructive vibrations that can crack cranks and shorten engine life. This steel construction delivers the durability and balance precision needed for small block Chevy applications running...PBBPB1050-ST- SKU:
- PBBPB1050-ST
- Availability:
- Ships Same Business Day
- Weight:
- 10.59 LBS
- MFG Part #:
- PB1050ST
$181.99 -
SBC 8in Steel Harmonic Balancer - SFI PB1050SS
POWER BOND BALANCERS
$299.99Harmonic balancers are critical to engine longevity and performance—they absorb crankshaft vibrations that can lead to premature wear and catastrophic failure at high RPM. This SBC balancer delivers SFI 18.1 certification for drag racing and high-output...PBBPB1050-SS- SKU:
- PBBPB1050-SS
- Availability:
- Ships Same Business Day
- Weight:
- 11.01 LBS
- MFG Part #:
- PB1050SS
$299.99 -
SBC 8in Steel Harmonic Balancer - Non-SFI PB1050N
POWER BOND BALANCERS
$80.99Harmonic balancers are critical to engine longevity—they absorb crankshaft vibration that would otherwise compromise bearing life and overall reliability. This steel construction balancer is engineered for Small Block Chevy engines running external...PBBPB1050-N- SKU:
- PBBPB1050-N
- Availability:
- Ships Same Business Day
- Weight:
- 11.15 LBS
- MFG Part #:
- PB1050N
$80.99 -
SBC 8in Steel Harmonic Balancer - Non SFI PB1046ST
POWER BOND BALANCERS
$173.99A quality harmonic balancer is essential for any SBC engine, keeping destructive vibrations in check while protecting your crankshaft from premature wear. This steel construction delivers the durability and reliability you need whether you're running...PBBPB1046-ST- SKU:
- PBBPB1046-ST
- Availability:
- Ships Same Business Day
- Weight:
- 10.47 LBS
- MFG Part #:
- PB1046ST
$173.99 -
SBC 8in Steel Harmonic Balancer - SFI PB1046SS
POWER BOND BALANCERS
$237.99Harmonic balancers are critical to engine longevity—they dampen destructive crankshaft vibrations that can lead to premature failure. This SBC balancer combines SFI certification with robust steel construction, making it the right choice for serious...PBBPB1046-SS- SKU:
- PBBPB1046-SS
- Availability:
- Ships Same Business Day
- Weight:
- 11.58 LBS
- MFG Part #:
- PB1046SS
$237.99 -
SBC 6.25in. Steel Harmonic Balancer-Non SF PB1012ST
POWER BOND BALANCERS
$153.99A quality harmonic balancer is essential for SBC longevity—it absorbs destructive crankshaft vibrations that can lead to premature failure and poor drivability. This steel construction unit is engineered for street applications where reliability and...PBBPB1012-ST- SKU:
- PBBPB1012-ST
- Availability:
- Ships Same Business Day
- Weight:
- 4.90 LBS
- MFG Part #:
- PB1012ST
$153.99
