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 Titanium Valve Spring Retainer- 10 Degree 738-16
COMP CAMS
$407.95Titanium valve spring retainers reduce rotational mass and inertia, enabling faster valve actuation and more consistent rpm performance across your entire power band. By eliminating the weight penalty of steel retainers, you gain improved valve control...COM738-16- SKU:
- COM738-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MFG Part #:
- 738-16
$407.95 -
Comp Cams Sbc Magnum Pushrods 5/16 Stock Length (7.800) 7372-16
COMP CAMS
$152.95Comp Cams' Magnum pushrods deliver the precision and durability your SBC demands, whether you're running stock or modified valve train geometry. Built from chromoly with a 0.080-inch wall thickness, these pushrods resist flex and deflection under high...COM7372-16- SKU:
- COM7372-16
- Availability:
- Ships Same Business Day
- Weight:
- 2.26 LBS
- MFG Part #:
- 7372-16
$152.95 -
Comp Cams Titanium Valve Spring Retainers- 10 Degree 735-16
COMP CAMS
$407.95Valve spring retainers are critical to maintaining valve control and preventing float at high RPM—especially in forced induction and high-lift cam applications. Comp Cams' titanium construction delivers a significant weight reduction compared to steel,...COM735-16- SKU:
- COM735-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MFG Part #:
- 735-16
$407.95 -
Comp Cams Titanium Valve Spring Retainers- 10 Degree 733-16
COMP CAMS
$407.95Titanium valve spring retainers are essential for high-RPM engines where stock components fall short. Comp Cams' 733-16 retainers deliver the strength-to-weight ratio needed for aggressive cam profiles and elevated valve spring pressures, while resisting...COM733-16- SKU:
- COM733-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- MFG Part #:
- 733-16
$407.95 -
Comp Cams Titanium Valve Spring Retainers- 10 Degree 732-16
COMP CAMS
$407.95Valve spring retainers are critical to maintaining precise valve control under extreme lift and RPM conditions—weak or poorly designed retainers will cause valve float, loss of power, and potential engine damage. Comp Cams' titanium construction delivers...COM732-16- SKU:
- COM732-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.79 LBS
- MFG Part #:
- 732-16
$407.95 -
Comp Cams Titanium Valve Spring Retainers- 10 degree 730-16
COMP CAMS
$461.95Valve spring retainers are critical to maintaining precise valve control under extreme RPM and boost conditions—failure here cascades into catastrophic engine damage. Comp Cams' titanium construction delivers the strength of steel at a fraction of the...COM730-16- SKU:
- COM730-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- 730-16
$461.95 -
Comp Cams 10 Degree Tit. Valve Spring Retainers 729-16
COMP CAMS
$461.95Titanium valve spring retainers are essential for high-RPM engine builds where stock components simply can't handle sustained combustion pressures and aggressive valve actuation. Comp Cams' 10-degree retainers deliver the strength-to-weight ratio you...COM729-16- SKU:
- COM729-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- MFG Part #:
- 729-16
$461.95 -
Comp Cams Titanium Valve Spring Retainers - 10 Degree 720-16
COMP CAMS
$407.95Titanium valve spring retainers are essential for high-RPM applications where weight reduction and reliability are non-negotiable. By switching to titanium, you'll reduce valvetrain inertia, allowing your springs to respond faster and your engine to rev...COM720-16- SKU:
- COM720-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- 720-16
$407.95 -
Comp Cams Billet Timing Set - SBF 7138
COMP CAMS
$140.95A timing chain set is fundamental to engine reliability and performance—it synchronizes your crankshaft and camshaft to ensure precise valve operation at high RPM. Comp Cams' billet steel construction and double-roller design eliminate the flex and wear...COM7138- SKU:
- COM7138
- Availability:
- Ships Same Business Day
- Weight:
- 3.13 LBS
- MFG Part #:
- 7138
$140.95 -
Comp Cams SBC Billet Timing Set 7100
COMP CAMS
$134.95Precision timing is non-negotiable in high-performance small block Chevy applications, and a quality timing set directly impacts engine reliability and power delivery. The Comp Cams SBC Billet Timing Set 7100 delivers the durability and adjustability you...COM7100- SKU:
- COM7100
- Availability:
- Ships Same Business Day
- Weight:
- 3.09 LBS
- MFG Part #:
- 7100
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
Comp Cams 11/32in 7 Degree Valve Locks 648-16
COMP CAMS
$40.95Valve locks are critical to engine reliability—they keep your valve keepers seated under the extreme pressures and temperatures of combustion, preventing catastrophic valve drop and engine damage. These Comp Cams 11/32in locks are engineered for street...COM648-16- SKU:
- COM648-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 648-16
$40.95Qty in Cart: 0Quantity:Price:$40.95Subtotal: -
Comp Cams 10 Degree Valve Locks 11/32in -.050in w/Caps 630-16
COMP CAMS
$54.95Valve locks are critical to maintaining rocker arm geometry and preventing valve float at high RPM—especially in forced induction and boosted applications where valve train stress peaks. Comp Cams' Super Locks deliver consistent clamping force with their...COM630-16- SKU:
- COM630-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- 630-16
$54.95 -
Comp Cams .310in 10Deg Super Locks W/Lash Cap Recess 618-16
COMP CAMS
$40.95Valve locks are critical to camshaft reliability—they secure the valve spring retainer and prevent catastrophic failures under high RPM conditions. The Comp Cams Super Locks with lash cap recess deliver consistent, repeatable performance in demanding...COM618-16- SKU:
- COM618-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- MFG Part #:
- 618-16
$40.95 -
Comp Cams 11/32in 10Deg Super Locks W/+.050in Installe 614-16
COMP CAMS
$40.95Valve locks are critical components that keep your valve train secure under extreme RPM and boost conditions. Comp Cams Super Locks deliver the precision fitment and reliability you need to prevent catastrophic valvetrain failure during sustained...COM614-16- SKU:
- COM614-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MFG Part #:
- 614-16
$40.95 -
Comp Cams 11/32in 10Deg Super Locks NO Lash Cap Recess 613-16
COMP CAMS
$40.95Valve locks are critical to maintaining proper valve train geometry under extreme RPM and boost conditions—a single failure can result in catastrophic engine damage. Comp Cams Super Locks deliver the security and precision fit your engine demands, with a...COM613-16- SKU:
- COM613-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- 613-16
$40.95 -
Comp Cams 11/32in 10Deg Super Locks W/Lash Cap Recess 611-16
COMP CAMS
$40.95Valve locks are critical to keeping your valvetrain stable under high RPM operation—failure here means catastrophic engine damage. Comp Cams Super Locks deliver the security and precision fit needed for forced induction builds, naturally aspirated...COM611-16- SKU:
- COM611-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- 611-16
$40.95 -
Comp Cams 11/32 Valve Locks Steel 7 Degree- Single Groove 601-16
COMP CAMS
$23.95Valve locks are a critical safety component that keeps your valve train secure under extreme RPM and load conditions. Comp Cams' steel construction ensures reliable retention without flex or failure, essential for both street and racing applications...COM601-16- SKU:
- COM601-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 601-16
$23.95 -
Comp Cams 5/16in Valve Locks Steel 7 Degree- Single Groove 600-16
COMP CAMS
$23.95Valve locks are critical to reliable engine operation—they keep your valve retainers seated and prevent catastrophic valvetrain failure under high RPM loads. Comp Cams' steel valve locks deliver consistent performance across street and strip...COM600-16- SKU:
- COM600-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- 600-16
$23.95 -
Comp Cams Adjustable Guide Plates - SBC/SBF 3/8 4839-8
COMP CAMS
$81.95Pushrod guide plates are critical for controlling side-to-side movement and maintaining proper valve train geometry under high RPM conditions. Comp Cams' adjustable design lets you dial in the perfect clearance for your specific combination, reducing...COM4839-8- SKU:
- COM4839-8
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MFG Part #:
- 4839-8
$81.95 -
Comp Cams Adjustable Guide Plates - SBC/SBF 5/16 4835-8
COMP CAMS
$80.95Pushrod guide plates are critical for maintaining proper valve train alignment and preventing lateral pushrod movement that can cause premature wear and power loss. Comp Cams' adjustable design lets you dial in the perfect geometry for your specific...COM4835-8- SKU:
- COM4835-8
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- MFG Part #:
- 4835-8
$80.95
