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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Comp Cams 3/8 Hi-Tech Pushrods - 8.000 Long 7734-16
COMP CAMS
$261.95Comp Cams Hi-Tech Pushrods deliver the precision valve actuation your engine demands, with a 210-degree radius design that reduces friction and wear across the entire RPM band. Built from durable chromoly with a reinforced 0.080-inch wall thickness,...COM7734-16- SKU:
- COM7734-16
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MFG Part #:
- 7734-16
$261.95 -
Comp Cams 3/8 Hi-Tech Pushrods - 7.900 Long 7732-16
COMP CAMS
$261.95Comp Cams Hi-Tech Pushrods deliver the precision and reliability your engine demands when every millisecond of valve timing matters. Built from durable chromoly with a reinforced wall thickness, these pushrods resist deflection under high-RPM stress...COM7732-16- SKU:
- COM7732-16
- Availability:
- Ships Same Business Day
- Weight:
- 2.89 LBS
- MFG Part #:
- 7732-16
$261.95Qty in Cart: 0Quantity:Price:$261.95Subtotal: -
Comp Cams 5/16 Magnum Pushrods - 7.950 Long 7694-16
COMP CAMS
$154.95Pushrods are a critical valve train component that directly transmit cam lobe motion to your rocker arms—and weak or improperly sized rods will cause valvetrain instability, lost power, and potential engine damage. Comp Cams' Magnum line delivers the...COM7694-16- SKU:
- COM7694-16
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MFG Part #:
- 7694-16
$154.95 -
Comp Cams Super Lock Valve Spring Retainer Steel-10 Degree 749-16
COMP CAMS
$85.95Valve spring retainers are critical to maintaining consistent spring pressure and preventing valve float at high RPM—making them essential for any serious performance build. The Comp Cams Super Lock design locks onto your spring with precision,...COM749-16- SKU:
- COM749-16
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- MFG Part #:
- 749-16
$85.95 -
Comp Cams Titanium Valve Spring Retainers- 10 Degree 731-16
COMP CAMS
$407.95Titanium valve spring retainers are essential for high-RPM applications where weight reduction and reliability directly impact engine performance. By replacing cast iron retainers with Comp Cams' titanium units, you'll reduce valvetrain mass, increase...COM731-16- SKU:
- COM731-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- MFG Part #:
- 731-16
$407.95Qty in Cart: 0Quantity:Price:$407.95Subtotal: -
Comp Cams Sb Ford 5/16 Guide Plates Flat Type 4816-8
COMP CAMS
$26.95Pushrod guide plates are critical for maintaining valve train stability and preventing deflection under high RPM conditions. These Comp Cams flat-type guides ensure consistent pushrod geometry, reducing wear on rocker arms and valve stems while...COM4816-8- SKU:
- COM4816-8
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- MFG Part #:
- 4816-8
$26.95 -
Comp Cams Spring Locator 1.625 O.D .630 I.D. .060 Thickness 4775-16
COMP CAMS
$79.95Valve spring locators are critical components in any high-performance engine build—they prevent spring migration and maintain consistent valve train geometry under extreme RPM and load. Without proper locators, you risk valve float, inconsistent lift,...COM4775-16- SKU:
- COM4775-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- 4775-16
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
Comp Cams SBC 7/16in Stud Girdle Kit - 40/60 Spacing 4018
COMP CAMS
$314.95Rocker arm studs are critical wear points on small block Chevy engines, especially in high-RPM or forced-induction builds where valvetrain loads spike dramatically. A quality stud girdle kit like this Comp Cams offering keeps your studs properly aligned...COM4018- SKU:
- COM4018
- Availability:
- Ships Same Business Day
- Weight:
- 8.27 LBS
- MFG Part #:
- 4018
$314.95 -
Comp Cams Sbc Stud Girdle 3/8 Stud Solid Bar Design 4007
COMP CAMS
$289.95Rocker arm stud girdles are critical for maintaining valve train stability under high RPM and boost conditions—loose studs lead to valvetrain geometry changes that kill both power and reliability. The Comp Cams SBC Stud Girdle locks your rocker arms in...COM4007- SKU:
- COM4007
- Availability:
- Ships Same Business Day
- Weight:
- 6.65 LBS
- MFG Part #:
- 4007
$289.95 -
Comp Cams SBF OEM Cam Plate 3120TB
COMP CAMS
$152.95A worn or damaged cam plate compromises valve timing precision and can lead to catastrophic engine damage if the camshaft develops excessive end play. The Comp Cams SBF OEM Cam Plate 3120TB is engineered to maintain proper camshaft thrust clearance,...COM3120TB- SKU:
- COM3120TB
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 3120TB
$152.95Qty in Cart: 0Quantity:Price:$152.95Subtotal: -
Comp Cams SBC Wear Plate .030in Thickness 201
COMP CAMS
$20.95Camshaft wear is one of the most insidious threats to engine longevity, especially in high-RPM or boosted small block applications where valve train stress peaks. This Comp Cams wear plate acts as a sacrificial barrier between your camshaft and the...COM201- SKU:
- COM201
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 201
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
Comp Cams SBC Ultra Gold R/A's - 1.6 Ratio 7/16 Stud 19005-16
COMP CAMS
$433.95Comp Cams' Ultra Gold rocker arms deliver the valvetrain stability and durability your small block Chevy demands, whether you're building a street engine or pushing limits at the track. The 1.6 ratio geometry optimizes lift characteristics while the full...COM19005-16- SKU:
- COM19005-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.53 LBS
- MFG Part #:
- 19005-16
$433.95 -
Comp Cams SBC Rocker Arm Set - 1.6 Ratio 3/8 Stud 1618-16
COMP CAMS
$467.95A properly functioning rocker arm ratio directly impacts your Small Block Chevy's valve lift and overall engine responsiveness. The Comp Cams 1.6 ratio design delivers measurable gains in mid-range performance while maintaining reliable operation across...COM1618-16- SKU:
- COM1618-16
- Availability:
- Ships Same Business Day
- Weight:
- 9.15 LBS
- MFG Part #:
- 1618-16
$467.95 -
Comp Cams SBC O/W Solid Cam 284 S7 12-527-5
COMP CAMS
$341.95If you're building a street or strip Small Block Chevy that demands responsive mid-range power and reliable mechanical actuation, the Comp Cams SBC O/W Solid Cam delivers the lift and duration needed to unlock real horsepower gains without the complexity...COM12-527-5- SKU:
- COM12-527-5
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
- MFG Part #:
- 12-527-5
$341.95 -
Comp Cams Sbc Cam 288TLS-6 Tight Lash Solid 12-515-5
COMP CAMS
$341.95If you're building a street or strip Small Block Chevy that demands reliable, predictable power delivery, the Comp Cams 288TLS-6 solid lifter cam is engineered to serve. This tight lash design eliminates the maintenance headaches of hydraulic systems...COM12-515-5- SKU:
- COM12-515-5
- Availability:
- Ships Same Business Day
- Weight:
- 8.64 LBS
- MFG Part #:
- 12-515-5
$341.95 -
Comp Cams SBC Hi-Energy R/A's - 7/16 Stud 1.5 Ratio 1220-16
COMP CAMS
$274.95Maximize your small block Chevy's valve train efficiency with Comp Cams' Hi-Energy rocker arms, engineered to deliver consistent lift and reduced deflection across the entire RPM band. The 1.5:1 ratio provides optimal mechanical advantage for street and...COM1220-16- SKU:
- COM1220-16
- Availability:
- Ships Same Business Day
- Weight:
- 4.44 LBS
- MFG Part #:
- 1220-16
$274.95Qty in Cart: 0Quantity:Price:$274.95Subtotal: -
Comp Cams SBC Hi-Energy R/A's - 3/8 Stud 1.6 Ratio 1218-16
COMP CAMS
$245.95Rocker arm ratio directly impacts valve lift and duration, making it a critical tuning variable for small block Chevy engines seeking optimized cam performance. Comp Cams' Hi-Energy rocker arms are engineered with nitride steel construction to handle...COM1218-16- SKU:
- COM1218-16
- Availability:
- Ships Same Business Day
- Weight:
- 4.41 LBS
- MFG Part #:
- 1218-16
$245.95 -
Cloyes True Roller Timing Set - Ford 351W 9-3135-10
CLOYES
$175.99A timing chain is critical to engine reliability and performance—choose wrong, and you're risking skipped teeth, valve timing errors, and catastrophic engine damage. The Cloyes True Roller Timing Set for Ford 351W delivers the precision and durability...CLO9-3135-10- SKU:
- CLO9-3135-10
- Availability:
- Ships Same Business Day
- Weight:
- 3.36 LBS
- MFG Part #:
- 9-3135-10
$175.99Qty in Cart: 0Quantity:Price:$175.99Subtotal: -
Cloyes True Roller Timing Set - SBC 9-3100-10
CLOYES
$145.99A timing chain set is fundamental to engine reliability and performance—it's the component that synchronizes your crankshaft and camshaft rotation, and any slop or wear directly impacts power delivery and longevity. The Cloyes True Roller Timing Set...CLO9-3100-10- SKU:
- CLO9-3100-10
- Availability:
- Ships Same Business Day
- Weight:
- 3.33 LBS
- MFG Part #:
- 9-3100-10
$145.99 -
On Sale
Main Bearing Set - Calico Coated MS429HX
CALICO COATINGS
MSRP: $193.99Now: $175.77Was: $193.99Main bearings are the foundation of engine reliability—they handle extreme pressures and temperatures that demand precision engineering. The Calico Coated MS429HX delivers superior load capacity and extended service life through advanced bearing surface...CLCMS429HX- SKU:
- CLCMS429HX
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MFG Part #:
- MS429HX
MSRP: $193.99Now: $175.77Was: $193.99Qty in Cart: 0Quantity:Price:MSRP: $193.99Now: $175.77Was: $193.99Subtotal:
