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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Dart Valve Seat - Intake - 2.160 x 1.810 x .350 VS2160
DART
$11.25A precision valve seat is fundamental to cylinder head integrity and combustion efficiency. The Dart VS2160 intake valve seat delivers consistent sealing geometry and durability across high-RPM and forced-induction applications, reducing the risk of...DRTVS2160- SKU:
- DRTVS2160
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$11.25 -
Dart SBF SHP Iron Block 4.000 Bore 9.500 DH 31375135
DART
$2,699.99The Dart SBF SHP Iron Block is engineered for serious Small Block Ford builders who demand a proven foundation for high-output street and race engines. This bare block delivers the strength and precision machining required to support aggressive boost...DRT31375135- SKU:
- DRT31375135
- Availability:
- Ships Same Business Day
- Weight:
- 238.00 LBS
$2,699.99Qty in Cart: 0Quantity:Price:$2,699.99Subtotal: -
Dart SBF SHP Cylinder Head 205cc/62cc - Assem. 128325
DART
$599.99The Dart SBF SHP Cylinder Head delivers the flow characteristics and chamber efficiency demanded by serious Small Block Ford builders. With a proven 205cc intake runner and optimized 62cc combustion chamber, this head supports both naturally aspirated...DRT128325- SKU:
- DRT128325
- Availability:
- Ships Same Business Day
- Weight:
- 26.00 LBS
$599.99 -
Dart SBF SHP Cylinder Head 205cc/58cc - Bare 128215
DART
$447.99The Dart SBF SHP cylinder head delivers the flow characteristics serious small-block Ford builders demand without the premium price tag of fully finished castings. With a proven 205cc intake runner design and angle-plug configuration, this bare head...DRT128215- SKU:
- DRT128215
- Availability:
- Ships Same Business Day
- Weight:
- 26.00 LBS
$447.99Qty in Cart: 0Quantity:Price:$447.99Subtotal: -
Chevy V8 LW Solid Lifter Set w/.980 Oil Hole 66900LW980-16
CROWER
$524.99If you're running a solid lifter camshaft in your Chevy V8, you need lifters that can handle the aggressive valve train dynamics without sacrificing reliability. These lightweight mechanical flat tappet lifters are engineered for high-RPM performance...CRO66900LW980-16- SKU:
- CRO66900LW980-16
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
$524.99 -
Solid Lifter Set- Chevy V8 Lightweight 66900LW-16
CROWER
$427.99Mechanical roller lifters are essential for high-RPM applications where valve train stability directly impacts power delivery and engine longevity. This lightweight solid lifter set reduces reciprocating mass, allowing your Chevy V8 to achieve higher RPM...CRO66900LW-16- SKU:
- CRO66900LW-16
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
$427.99 -
Comp Cams Cam Phaser Lockout Kit GM GEN V LT4 5471
COMP CAMS
$114.95Variable valve timing is a double-edged sword for forced induction—it improves efficiency at cruise but destabilizes boost response when you need it most. The Comp Cams Cam Phaser Lockout Kit locks your cam timing at peak performance settings,...COM5471- SKU:
- COM5471
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$114.95 -
Comp Cams Cam Phaser Lockout Kit GM 07-08 L92 & GEN V LT1 5465
COMP CAMS
$92.95Variable valve timing is a powerful tool for efficiency and emissions compliance, but it can wreak havoc on high-performance builds where precise cam timing is critical to power delivery. The Comp Cams Cam Phaser Lockout Kit locks in your camshaft timing...COM5465- SKU:
- COM5465
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$92.95 -
Comp Cams Cam Phaser Limiter Kit GM LS Gen IV 09-Up 5460
COMP CAMS
$87.95Variable valve timing on Gen IV LS engines delivers real gains in both peak power and drivability, but uncontrolled phaser movement can undermine those benefits and introduce reliability issues under high load. The Comp Cams Cam Phaser Limiter Kit locks...COM5460- SKU:
- COM5460
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$87.95 -
Comp Cams 1.455 OD Spring Locators .570in 4709-16
COMP CAMS
$79.95Proper valve spring locators are critical for maintaining consistent spring pressure and preventing component migration during high-RPM operation. These Comp Cams locators ensure repeatable geometry and reliable valvetrain stability, whether you're...COM4709-16- SKU:
- COM4709-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
$79.95 -
Comp Cams GM LS Series Dual Valve Spring Kit 26926TS-KIT
COMP CAMS
$686.95If you're running sustained RPM levels or forced induction on your LS platform, factory valve springs will compromise reliability and cost you consistency on the track. The Comp Cams Dual Valve Spring Kit delivers the load capacity and stability needed...COM26926TS-KIT- SKU:
- COM26926TS-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 5.52 LBS
$686.95 -
Comp Cams Dual Valve Spring Kit GM LS w/Steel Retainers 26925TS-KIT
COMP CAMS
$625.95If you're pushing your LS engine to higher RPMs or running a aggressive cam profile, your factory valve springs won't cut it. This Comp Cams dual spring kit is engineered to maintain valve control under extreme lift and velocity, preventing float and...COM26925TS-KIT- SKU:
- COM26925TS-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 5.16 LBS
$625.95 -
Comp Cams Valve Spring & Retainer Kit GM LS - Dual Spring 26925CS-KIT
COMP CAMS
$571.95If you're building or refreshing an LS engine, valve spring performance directly impacts your engine's ability to safely sustain high RPM loads and cam aggression. The Comp Cams 26925CS-KIT delivers a proven dual-spring design with the right spring rate...COM26925CS-KIT- SKU:
- COM26925CS-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 5.20 LBS
$571.95 -
Comp Cams Valve Spring Kit - GM LS Beehive 26918CS-KIT
COMP CAMS
$459.95A valve spring kit is fundamental to any LS engine build—whether you're targeting higher RPM capability, improving reliability under sustained boost, or maximizing flow efficiency. The Comp Cams Beehive design delivers consistent seat pressure across a...COM26918CS-KIT- SKU:
- COM26918CS-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 4.41 LBS
$459.95 -
Comp Cams Valve Spring & Retainer Kit GM LS6 Beehive Style 26906CS-KIT
COMP CAMS
$283.95If you're running a high-revving LS6 engine, your factory valve springs are likely holding you back. This Comp Cams beehive-style spring kit delivers the load capacity and consistency your aggressive cam profile demands, ensuring reliable valve control...COM26906CS-KIT- SKU:
- COM26906CS-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$283.95 -
Comp Cams BSR Shaft Rocker System Max-Lift GM LS7 1983-16
COMP CAMS
$883.95If you're pushing your LS7 to the limit, your valvetrain needs to keep pace—and factory rockers won't cut it. The Comp Cams BSR Shaft Rocker System delivers the lift reliability and consistent geometry that separates consistent power from broken dreams...COM1983-16- SKU:
- COM1983-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
$883.95 -
Comp Cams BSR Shaft Rocker System Max-Lift GM LS3/L92 1982-16
COMP CAMS
$774.95The Comp Cams BSR Shaft Rocker System delivers reliable valve actuation for serious LS3/L92 builders who demand consistency and durability without compromise. Shaft-mounted rockers eliminate the wear patterns and deflection common to pedestal designs,...COM1982-16- SKU:
- COM1982-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
$774.95 -
Comp Cams GM LS Ultra-Pro Mag Roller Rocker Arms 1.8 1678-16
COMP CAMS
$541.95Maximizing valve lift and duration on your LS engine requires rocker arms that can handle sustained high RPM loads without deflection or wear. Comp Cams' Ultra-Pro Magnum rockers deliver the precision geometry and full-roller design that separates...COM1678-16- SKU:
- COM1678-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.78 LBS
$541.95 -
Comp Cams GM LS OE Rocker Arm Set 1.8 w/Trunnion Upgrade 1480-16
COMP CAMS
$639.95The rocker arm is the critical link between your camshaft and valve train, and OE components often leave performance on the table. This Comp Cams upgrade delivers a full roller design with a 1.8 ratio and reinforced trunnion support, giving you precise...COM1480-16- SKU:
- COM1480-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.10 LBS
$639.95 -
Comp Cams Trunnion Upgrade Kit GM LS7/GEN-V LT1 Rocker Arm 13704TL-KIT
COMP CAMS
$213.95Factory rocker arm bearings wear under sustained high-RPM operation, leading to increased friction, valve train instability, and potential catastrophic failure. This Comp Cams trunnion upgrade kit replaces worn needle bearings with precision components,...COM13704TL-KIT- SKU:
- COM13704TL-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 4.30 LBS
$213.95
