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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SBC Roller Rocker Arms 1.5 Ratio 3/8 Stud 1035
SCORPION PERFORMANCE
$522.83If you're running a small block Chevy engine that demands reliable valve actuation at high RPM, roller rocker arms are the upgrade that separates serious builds from amateur setups. The 1.5 ratio geometry delivers the mechanical advantage you need for...SPN1035- SKU:
- SPN1035
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
- MFG Part #:
- 1035
$522.83 -
SBF Roller Rocker Arms 1.72 Ratio Pedestal Mnt. 1022
SCORPION PERFORMANCE
$493.75A quality rocker arm directly impacts your engine's valvetrain efficiency, and these SBF roller rocker arms are built to handle sustained high-RPM operation without sacrificing reliability. The 1.72 ratio provides the mechanical advantage needed for...SPN1022- SKU:
- SPN1022
- Availability:
- Ships Same Business Day
- Weight:
- 8.77 LBS
- MFG Part #:
- 1022
$493.75 -
SBF Roller Rocker Arms 1.6 Ratio Pedestal Mount 1021
SCORPION PERFORMANCE
$493.75Roller rocker arms are critical to maximizing valve lift, reducing friction, and extending engine life under sustained high-RPM operation. These SBF units deliver a 1.6 ratio mechanical advantage that increases valve travel while minimizing parasitic...SPN1021- SKU:
- SPN1021
- Availability:
- Ships Same Business Day
- Weight:
- 8.74 LBS
- MFG Part #:
- 1021
$493.75 -
SBF Roller Rocker Arms 1.72 Ratio 7/16 Stud 1020
SCORPION PERFORMANCE
$446.65Roller rocker arms are essential for maximizing valve lift and duration in high-rpm applications, delivering more aggressive cam profiles without sacrificing reliability. The 1.72 ratio provides a proven balance of mechanical advantage and valve travel...SPN1020- SKU:
- SPN1020
- Availability:
- Ships Same Business Day
- Weight:
- 8.41 LBS
- MFG Part #:
- 1020
$446.65Qty in Cart: 0Quantity:Price:$446.65Subtotal: -
SBF Roller Rocker Arms 1.6 Ratio 3/8 Stud 1017
SCORPION PERFORMANCE
$446.65Roller rocker arms are critical to maximizing valve lift and duration on any high-revving small block Ford engine. The 1.6 ratio multiplies your camshaft's lift characteristics, delivering measurable gains in cylinder head flow and power output. This...SPN1017- SKU:
- SPN1017
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
- MFG Part #:
- 1017
$446.65 -
SBC Roller Rocker Arms 1.5 Ratio 7/16 Stud 1011
SCORPION PERFORMANCE
$458.46Rocker arm ratio directly impacts valve lift and engine efficiency—a 1.5:1 ratio optimizes both flow and reliability for small block Chevy race engines. The full roller design eliminates friction losses that plague traditional stamped arms, translating...SPN1011- SKU:
- SPN1011
- Availability:
- Ships Same Business Day
- Weight:
- 8.30 LBS
- MFG Part #:
- 1011
$458.46 -
SBC Roller Rocker Arms 1.65 Ratio 7/16 Stud 1009
SCORPION PERFORMANCE
$446.65Roller rocker arms are essential for maximizing valve lift and duration while reducing friction losses in your small block Chevy engine. This Race Series set delivers consistent, high-RPM performance with a 1.65 ratio that increases valve motion without...SPN1009- SKU:
- SPN1009
- Availability:
- Ships Same Business Day
- Weight:
- 8.43 LBS
- MFG Part #:
- 1009
$446.65 -
SBC Roller Rocker Arms 1.6 Ratio 7/16 Stud 1003
SCORPION PERFORMANCE
$446.65Maximum valve lift and duration are only half the equation—your rocker arms must deliver that aggression to the valve train with zero deflection and minimal friction loss. These SBC roller rocker arms transfer camshaft motion with precision geometry and...SPN1003- SKU:
- SPN1003
- Availability:
- Ships Same Business Day
- Weight:
- 8.45 LBS
- MFG Part #:
- 1003
$446.65 -
SBC Roller Rocker Arms 1.6 Ratio 3/8 Stud 1002
SCORPION PERFORMANCE
$446.65SBC roller rocker arms are a critical upgrade for any small block Chevy engine looking to maximize valve lift efficiency and reduce parasitic losses. By converting from stamped steel to full roller design, you'll gain measurable increases in reliability...SPN1002- SKU:
- SPN1002
- Availability:
- Ships Same Business Day
- Weight:
- 8.69 LBS
- MFG Part #:
- 1002
$446.65 -
SBC Roller Rocker Arms 1.5 Ratio 7/16 Stud 1001
SCORPION PERFORMANCE
$446.65Rocker arm ratio directly affects valve lift and duration, making it critical to your engine's power band and RPM ceiling. These SBC roller rockers deliver a 1.5:1 ratio with full roller design to minimize friction losses and maximize reliability in...SPN1001- SKU:
- SPN1001
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- MFG Part #:
- 1001
$446.65 -
SBC Roller Rocker Arms 1.5 Ratio 3/8 Stud 1000
SCORPION PERFORMANCE
$446.65If you're serious about small block Chevy performance, rocker arm selection directly impacts your engine's ability to convert camshaft motion into valve lift. These SBC roller rocker arms eliminate friction losses and harmonics that plague stock designs,...SPN1000- SKU:
- SPN1000
- Availability:
- Ships Same Business Day
- Weight:
- 8.68 LBS
- MFG Part #:
- 1000
$446.65 -
GM LS1/LS2/LS6 Rocker Arm Set 1.7 Ratio Adj. SLS17A
SHARP ROCKERS
$746.99Rocker arm ratio directly influences valve lift and duration—and this 1.7:1 set delivers the aggression your LS engine demands while maintaining stock-compatible geometry. The full roller design minimizes friction losses across the RPM band, translating...SHPSLS17A- SKU:
- SHPSLS17A
- Availability:
- Ships Same Business Day
- Weight:
- 6.72 LBS
- MFG Part #:
- SLS17A
$746.99 -
SBC Rocker Arms - 1.6 Ratio 7/16 Stud S1005-250
SHARP ROCKERS
$398.99Rocker arm ratio directly impacts valve lift and duration, making these S1005-250 units a critical upgrade for any serious small block Chevy build. The 1.6 ratio strikes an ideal balance between valve event duration and spring pressure, while the full...SHPS1005-250- SKU:
- SHPS1005-250
- Availability:
- Ships Same Business Day
- Weight:
- 6.85 LBS
- MFG Part #:
- S1005-250
$398.99Qty in Cart: 0Quantity:Price:$398.99Subtotal: -
SBC Rocker Arms - 1.6 Ratio 7/16 Stud S1005-150
SHARP ROCKERS
$409.99Upgrading to roller rocker arms is one of the highest-return modifications for small block Chevy engines—you'll see measurable gains in valve lift consistency, reduced friction losses, and improved overall engine efficiency. The 1.6 ratio on these SBC...SHPS1005-150- SKU:
- SHPS1005-150
- Availability:
- Ships Same Business Day
- Weight:
- 6.80 LBS
- MFG Part #:
- S1005-150
$409.99 -
SBF Rocker Arm - 1.6 Ratio 3/8 Stud 4003-1
SHARP ROCKERS
$30.99A quality rocker arm is fundamental to any SBF build seeking reliable valve actuation and consistent performance across the RPM band. The 1.6 ratio on this unit provides the mechanical advantage needed for proper valve lift while maintaining the...SHP4003-1- SKU:
- SHP4003-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- 4003-1
$30.99 -
SBC Rocker Arm - 1.6 Ratio 7/16 Stud 1005-1
SHARP ROCKERS
$33.99A quality rocker arm is fundamental to maximizing valve lift and duration—directly impacting power delivery and RPM capability on your small block Chevy. This 1.6 ratio full roller design reduces friction at the valve train while the aluminum...SHP1005-1- SKU:
- SHP1005-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 1005-1
$33.99 -
SBC Rocker Arm - 1.5 Ratio 7/16 Stud 1004-1
SHARP ROCKERS
$33.99A quality rocker arm is fundamental to reliable valvetrain geometry and consistent performance gains. The 1.5:1 ratio delivers a proven mechanical advantage for Small Block Chevy engines while the full roller design minimizes friction and wear under...SHP1004-1- SKU:
- SHP1004-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- MFG Part #:
- 1004-1
$33.99 -
SBC Rocker Arm - 1.6 Ratio 3/8 Stud 1002-1
SHARP ROCKERS
$30.99A quality rocker arm is fundamental to valvetrain efficiency and peak engine performance. This SBC rocker arm delivers consistent valve actuation with full roller design that minimizes friction and wear, directly translating to improved horsepower and...SHP1002-1- SKU:
- SHP1002-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- 1002-1
$30.99Qty in Cart: 0Quantity:Price:$30.99Subtotal: -
SBC Rocker Arm - 1.5 Ratio 3/8 Stud 1001-1
SHARP ROCKERS
$30.99A quality rocker arm directly impacts your SBC's valve actuation precision and overall engine reliability. This full roller design minimizes friction losses and delivers consistent valve timing across your entire RPM range. If you're building a...SHP1001-1- SKU:
- SHP1001-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- 1001-1
$30.99 -
Piston Ring Set 4.060 1/16 1/16 1/8 SEAR9968-60
SEALED POWER
$162.99Maintaining proper ring seal is critical for cylinder pressure, blow-by control, and fuel efficiency—especially in high-revving or forced induction applications. This Speed Pro piston ring set delivers consistent performance across the rev range with...SEAR9968-60- SKU:
- SEAR9968-60
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- MFG Part #:
- R996860
$162.99
