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 Valve Spring Retainers Steel- 7 Degree 743-16
COMP CAMS
$85.95Valve Spring Retainers Steel- 7 DegreeValve Spring Retainer7 Degree1.060 in / 0.690 in OD Steps1.437-1.500 in Dual SpringSteelSet of 16COM743-16- SKU:
- COM743-16
- Availability:
- Ships Same Business Day
- Weight:
- 1.29 LBS
- MFG Part #:
- 743-16
$85.95 -
Comp Cams Valve Spring Retainers Steel- 7 Degree 742-16
COMP CAMS
$85.95Valve Spring Retainers Steel- 7 DegreeValve Spring Retainer7 Degree0.870 in / 0.650 in OD Steps1.250 in Dual SpringSteelSmall Block Chevy / GM V6Set of 16COM742-16- SKU:
- COM742-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- 742-16
$85.95 -
Comp Cams Valve Spring Retainers Steel- 10 Degree 741-16
COMP CAMS
$85.95Valve Spring Retainers Steel- 10 DegreeValve Spring RetainerSuper Lock10 Degree1.115 in / 0.690 in OD Steps1.500-1.550 in Dual SpringSteelSet of 16COM741-16- SKU:
- COM741-16
- Availability:
- Ships Same Business Day
- Weight:
- 1.33 LBS
- MFG Part #:
- 741-16
$85.95 -
Comp Cams Valve Spring Retainers Steel- 10 Degree 740-16
COMP CAMS
$85.95Valve Spring Retainers Steel- 10 DegreeValve Spring RetainerSuper Lock10 Degree1.060 in / 0.690 in OD Steps1.437-1.500 in Dual SpringSteelSet of 16COM740-16- SKU:
- COM740-16
- Availability:
- Ships Same Business Day
- Weight:
- 1.17 LBS
- MFG Part #:
- 740-16
$85.95Qty in Cart: 0Quantity:Price:$85.95Subtotal: -
Comp Cams Titanium Valve Spring Retainer- 10 Degree 738-16
COMP CAMS
$407.95Titanium Valve Spring Retainer- 10 DegreeValve Spring Retainer10 Degree1.120 in / 0.730 in OD Steps1.500-1.550 in Dual SpringTitaniumSet of 16COM738-16- 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
$152.95Sbc Magnum Pushrods 5/16 Stock Length (7.800)PushrodMagnum7.800 in Long5/16 in Diameter0.080 in Thick WallChromolySmall Block Chevy / GM V6Set of 16COM7372-16- 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
$407.95Titanium Valve Spring Retainers- 10 DegreeValve Spring Retainer10 Degree1.180 in / 0.870 in / 0.635 in OD Steps1.625 in Triple SpringTitaniumSet of 16COM735-16- 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- 10 DegreeValve Spring Retainer10 Degree1.180 in / 0.765 in OD Steps1.625 in Dual SpringTitaniumSet of 16COM733-16- 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
$407.95Titanium Valve Spring Retainers- 10 DegreeValve Spring Retainer10 Degree1.110 in / 0.710 in OD Steps1.500-1.550 in Dual SpringTitaniumSet of 16COM732-16- 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
$461.95Titanium Valve Spring Retainers- 10 degreeValve Spring Retainer10 Degree1.035 in / 0.700 in OD Steps1.437-1.500 in Dual SpringTitaniumSet of 16COM730-16- SKU:
- COM730-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- MFG Part #:
- 730-16
$461.95Qty in Cart: 0Quantity:Price:$461.95Subtotal: -
Comp Cams 10 Degree Tit. Valve Spring Retainers 729-16
COMP CAMS
$461.9510 Degree Tit. Valve Spring RetainersValve Spring Retainer10 Degree1.135 in / 0.730 in OD Steps1.500-1.550 in Dual SpringTitaniumSet of 16COM729-16- 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 - 10 DegreeValve Spring Retainer10 Degree1.098 in / 0.798 in OD Steps1.500-1.550 in Dual SpringTitaniumSet of 16COM720-16- 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
$140.95Billet Timing Set - SBF Timing Chain SetDouble RollerKeyway AdjustableBillet SteelSmall Block FordKitCOM7138- 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
$134.95SBC Billet Timing Set Timing Chain SetDouble RollerKeyway AdjustableBillet SteelSmall Block ChevyKitCOM7100- SKU:
- COM7100
- Availability:
- Ships Same Business Day
- Weight:
- 3.09 LBS
- MFG Part #:
- 7100
$134.95 -
Comp Cams 11/32in 7 Degree Valve Locks 648-16
COMP CAMS
$40.9511/32in 7 Degree Valve LocksValve LockStreet Locks7 Degree11/32 in Valve StemStandard HeightSteelNaturalSet of 32COM648-16- SKU:
- COM648-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 648-16
$40.95 -
Comp Cams 10 Degree Valve Locks 11/32in -.050in w/Caps 630-16
COMP CAMS
$54.9510 Degree Valve Locks 11/32in -.050in w/CapsValve LockSuper Locks10 Degree11/32 in Valve Stem0.050 in Less HeightSteelNaturalSet of 32COM630-16- 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
$40.95.310in 10Deg Super Locks W/Lash Cap RecessValve LockSuper Locks10 Degree0.310 in Valve StemStandard HeightSteelNaturalSet of 32COM618-16- 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
$40.9511/32in 10Deg Super Locks W/+.050in InstalleValve LockSuper Locks10 Degree11/32 in Valve Stem0.050 in More HeightSteelNaturalSet of 32COM614-16- 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
$40.9511/32in 10Deg Super Locks NO Lash Cap RecessValve LockSuper Locks10 Degree11/32 in Valve StemStandard HeightSteelNaturalSet of 32COM613-16- 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
$40.9511/32in 10Deg Super Locks W/Lash Cap RecessValve LockSuper Locks10 Degree11/32 in Valve StemStandard HeightSteelNaturalSet of 32COM611-16- SKU:
- COM611-16
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- 611-16
$40.95
