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 SBC Ultra Pro Magnum XD R/A's - 1.5 3/8 1801-16
COMP CAMS
$584.95Rocker arm geometry directly impacts valve timing precision and overall engine efficiency—choosing the wrong ratio costs you horsepower and reliability. Comp Cams' Ultra Pro Magnum XD series delivers consistent, full-roller performance with minimal...COM1801-16- SKU:
- COM1801-16
- Availability:
- Ships Same Business Day
- Weight:
- 9.25 LBS
- MFG Part #:
- 1801-16
$584.95Qty in Cart: 0Quantity:Price:$584.95Subtotal: -
Comp Cams Valve Spring Retainers - L/W Tool Steel 1787-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining precise valve control under high RPM and aggressive cam profiles. Comp Cams' lightweight tool steel construction reduces valvetrain mass without sacrificing durability, allowing your engine to reach peak...COM1787-16- SKU:
- COM1787-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- 1787-16
$245.95Qty in Cart: 0Quantity:Price:$245.95Subtotal: -
Comp Cams Valve Spring Retainers - L/W Tool Steel 7 Degree 1779-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining proper spring seat pressure and preventing valve float at high RPM—essential for any engine running aggressive cam profiles or extended rev limits. Comp Cams' lightweight tool steel construction reduces...COM1779-16- SKU:
- COM1779-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- MFG Part #:
- 1779-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 7 Degree 1772-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining consistent spring pressure and preventing valve float at high RPM—especially in forced induction or naturally aspirated high-revving engines. Comp Cams' tool steel construction ensures durability under...COM1772-16- SKU:
- COM1772-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MFG Part #:
- 1772-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 10 Degree 1756-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining consistent spring pressure and preventing valve float at high RPMs—failure here means catastrophic engine damage. Comp Cams' lightweight tool steel retainers deliver the precision engineering and...COM1756-16- SKU:
- COM1756-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 1756-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 7 Degree 1754-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining proper spring geometry and preventing valve float at high RPM—essential for any engine running aggressive cam profiles or forced induction. Comp Cams' lightweight tool steel retainers deliver the...COM1754-16- SKU:
- COM1754-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- MFG Part #:
- 1754-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 10 Degree 1750-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining consistent spring preload and preventing valve float at high RPM—especially in forced induction and heavily modified engines. These Comp Cams tool steel retainers deliver the durability and precision...COM1750-16- SKU:
- COM1750-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 1750-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 1732-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining valve control and preventing float at high RPM—especially in forced induction or heavily modified engines where spring pressures are maximized. These Comp Cams tool steel retainers deliver the precision...COM1732-16- SKU:
- COM1732-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MFG Part #:
- 1732-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 1731-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining consistent spring pressure and preventing valve float at high RPM—especially in forced-induction or heavily modified engines. Comp Cams' lightweight tool steel design reduces rotating mass while...COM1731-16- SKU:
- COM1731-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- MFG Part #:
- 1731-16
$245.95 -
Comp Cams Valve Spring Retainers - L/W Tool Steel 1730-16
COMP CAMS
$245.95Valve spring retainers are critical to maintaining proper spring pressure and preventing valve float at high RPMs—a failure point that compromises both performance and engine reliability. Comp Cams' tool steel construction delivers the hardness and...COM1730-16- SKU:
- COM1730-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MFG Part #:
- 1730-16
$245.95 -
Comp Cams SBF H/E Alum. R/A's - 1.6 Ratio 7/16 Stud 17044-16
COMP CAMS
$249.95Upgrading your rocker arm ratio directly impacts valve lift and duration, translating to improved airflow and combustion efficiency across your RPM band. Comp Cams' high-energy die-cast aluminum construction delivers the durability of premium components...COM17044-16- SKU:
- COM17044-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.84 LBS
- MFG Part #:
- 17044-16
$249.95 -
Comp Cams SBF H/E Alum. R/A's - 1.6 Ratio 3/8 Stud 17043-16
COMP CAMS
$249.95Upgrading to Comp Cams' high-energy rocker arms is essential if you're serious about extracting more power from your Small Block Ford. The 1.6 ratio and full roller design reduce friction and improve valve actuation efficiency, translating directly to...COM17043-16- SKU:
- COM17043-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.04 LBS
- MFG Part #:
- 17043-16
$249.95 -
Comp Cams SBC H/E Alum. R/A's - 1.6 Ratio 7/16 Stud 17005-16
COMP CAMS
$249.95Upgrading to roller rocker arms is one of the most effective ways to unlock additional horsepower and reliability in your small block Chevy engine. Comp Cams' high-energy aluminum design reduces friction at the valve train while improving valve lift...COM17005-16- SKU:
- COM17005-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.76 LBS
- MFG Part #:
- 17005-16
$249.95 -
Comp Cams SBC H/E Alum. R/A's - 1.5 Ratio 7/16 Stud 17004-16
COMP CAMS
$249.95Rocker arm efficiency directly impacts valve timing precision and overall engine responsiveness. Comp Cams' High Energy aluminum rockers deliver consistent valve actuation with minimal deflection, critical for maximizing cam profile potential on any SBC...COM17004-16- SKU:
- COM17004-16
- Availability:
- Ships Same Business Day
- Weight:
- 7.72 LBS
- MFG Part #:
- 17004-16
$249.95Qty in Cart: 0Quantity:Price:$249.95Subtotal: -
Comp Cams SBC H/E Alum. R/A's - 1.6 Ratio 3/8 Stud 17002-16
COMP CAMS
$249.95Upgrade your small block Chevy's valvetrain with Comp Cams' High Energy aluminum rocker arms, engineered to maximize lift and duration while maintaining reliability under sustained RPM. The 1.6 ratio delivers a measurable increase in valve velocity,...COM17002-16- SKU:
- COM17002-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- MFG Part #:
- 17002-16
$249.95Qty in Cart: 0Quantity:Price:$249.95Subtotal: -
Comp Cams SBC H/E Alum. R/A's - 1.5 Ratio 3/8 Stud 17001-16
COMP CAMS
$249.95Comp Cams' High Energy aluminum rocker arms deliver reliable valve actuation with a 1.5:1 ratio designed specifically for small block Chevy engines. The full roller design reduces friction and wear on your camshaft while maintaining consistent geometry...COM17001-16- SKU:
- COM17001-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.03 LBS
- MFG Part #:
- 17001-16
$249.95Qty in Cart: 0Quantity:Price:$249.95Subtotal: -
Comp Cams SBF Rocker Arm Set - 1.6 Ratio 7/16 Stud 1632-16
COMP CAMS
$476.95If you're serious about maximizing valve lift and duration in your small block Ford, rocker arm ratio is non-negotiable—and this Comp Cams Ultra Pro Magnum set delivers the mechanical advantage you need. The 1.6 ratio amplifies your cam's potential while...COM1632-16- SKU:
- COM1632-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.80 LBS
- MFG Part #:
- 1632-16
$476.95 -
Comp Cams SBF Rocker Arm Set - 1/6 Ratio 3/8 Stud 1631-16
COMP CAMS
$467.95A quality rocker arm set is critical to translating cam lift into reliable valve actuation, and Comp Cams' Ultra Pro Magnum design delivers the durability and precision expected in high-revving small block Ford engines. The 1.60 ratio provides a proven...COM1631-16- SKU:
- COM1631-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.92 LBS
- MFG Part #:
- 1631-16
$467.95 -
Comp Cams SBC Rocker Arm Set - 1.52 Ratio 3/8 Stud 1617-16
COMP CAMS
$467.95A quality rocker arm set is fundamental to unlocking your Small Block Chevy's full potential—especially if you're running a higher-lift cam or pushing toward race-level power. The Comp Cams Ultra Pro Magnum delivers reduced friction and precise valve...COM1617-16- SKU:
- COM1617-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.93 LBS
- MFG Part #:
- 1617-16
$467.95 -
Comp Cams SBC Rocker Arm Set - 1.6 Ratio 7/16 Stud 1605-16
COMP CAMS
$476.95If you're serious about maximizing valve lift and duration in your small block Chevy, rocker arm ratio directly controls how much your valves actually open—and these Comp Cams Ultra Pro Magnum rockers deliver a proven 1.6 ratio that unlocks real...COM1605-16- SKU:
- COM1605-16
- Availability:
- Ships Same Business Day
- Weight:
- 8.83 LBS
- MFG Part #:
- 1605-16
$476.95
