Rotating Assembly
Circle Track Rotating Assembly at JJ Motorsports
Rotating assemblies deliver a comprehensive solution for building a balanced and durable bottom end. These pre-configured kits are optimized for reliability and power in circle track scenarios. Pair them with other engine-building components for a dominant performance on the track.
Shop trusted brands like Eagle for forged and cast options. Explore related categories such as Circle Track Crankshafts for rotational balance or Circle Track Connecting Rods for durable connections.
Top Circle Track Rotating Assembly
- Eagle SBC Balanced Rotating Assembly - 383 .030 KITB15454E030 – Rotating Assembly, 383 CID, Cast Crank, Hypereutectic Pistons, 3.750 in Stroke, 5.700 in I-Beam Rods, Small Block Chevy Kit.
- Eagle SBC Street Perf Engine Assembly Balanced KITB15405E060 – Rotating Assembly, 388 CID, Cast Crank, Hypereutectic Pistons, 3.750 in Stroke, 5.700 in I Beam Rods, Small Block Chevy Kit.
- Eagle SBC Balanced Rotating Assembly Kit KITB15402E040 – Rotating Assembly, Street / Strip, 357 CID, Cast Crank, Hypereutectic Pistons, 4.040 in Bore, 5.700 in I Beam Rods, Small Block Chevy Kit.
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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Eagle SBC Rotating Assembly Kit - Competition 12001040
EAGLE
$2,339.99SBC Rotating Assembly Kit - CompetitionRotating Assembly355 CIDForged CrankForged Pistons3.480 in Stroke4.040 in Bore5.700 in H Beam RodsSmall Block ChevyKitEAG12001040- SKU:
- EAG12001040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12001040
$2,339.99Qty in Cart: 0Quantity:Price:$2,339.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12001030
EAGLE
$2,509.99SBC Rotating Assembly Kit - 12001030 Complete rotating assembly designed for high-performance applications Engineered for 355 CID to deliver powerful performance Durable forged crank for enhanced strength and reliability High-quality forged pistons for...EAG12001030- SKU:
- EAG12001030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12001030
$2,509.99Qty in Cart: 0Quantity:Price:$2,509.99Subtotal: -
Eagle SBF 208/302 Rotating Assembly KIT14006030
EAGLE
$2,549.99Rotating Assembly331 CIDForged CrankForged Pistons3.250 in Stroke5.400 in H Beam RodsSmall Block FordKitEAG14006030- SKU:
- EAG14006030
- Availability:
- Ships Same Business Day
- Weight:
- 85.00 LBS
$2,549.99Qty in Cart: 0Quantity:Price:$2,549.99Subtotal: -
Eagle SBC Balanced Rotating Assembly Kit B13057E030
EAGLE
$1,769.99Rotating AssemblyStreet / Strip383 CIDCast CrankForged Pistons3.750 in Stroke4.030 in Bore6.000 in I Beam RodsSmall Block ChevyKitEAGB13057E030- SKU:
- EAGB13057E030
- Availability:
- Ships Same Business Day
- Weight:
- 105.00 LBS
$1,769.99Qty in Cart: 0Quantity:Price:$1,769.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12504040
EAGLE
$2,609.99SBC Rotating Assembly Kit - 12504040 High-performance rotating assembly designed for competition use Engineered for a powerful 407 CID displacement Durable forged crankshaft for maximum strength and reliability Includes precision-forged pistons to...EAG12504040- SKU:
- EAG12504040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12504040
$2,609.99Qty in Cart: 0Quantity:Price:$2,609.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12504030
EAGLE
$2,609.99SBC Rotating Assembly Kit - 12504030 Complete rotating assembly designed for high-performance applications Engineered for 407 CID to maximize power output Durable forged crank for enhanced strength and reliability High-quality forged pistons to...EAG12504030- SKU:
- EAG12504030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12504030
$2,609.99 -
Eagle SBC Rotating Assembly Kit - Competition 12503040
EAGLE
$2,509.99SBC Rotating Assembly Kit - CompetitionRotating Assembly407 CIDForged CrankForged Pistons3.750 in Stroke4.165 in Bore6.000 in H Beam RodsSmall Block ChevyKitEAG12503040- SKU:
- EAG12503040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12503040
$2,509.99Qty in Cart: 0Quantity:Price:$2,509.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12503030
EAGLE
$2,329.99SBC Rotating Assembly Kit - 12503030 High-performance rotating assembly designed for competition use Engineered for a powerful 407 CID displacement Durable forged crankshaft for enhanced strength and reliability Precision-forged pistons to ensure...EAG12503030- SKU:
- EAG12503030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12503030
$2,329.99 -
Eagle SBC Rotating Assembly Kit - Competition 12501030
EAGLE
$2,519.99SBC Rotating Assembly Kit - CompetitionRotating Assembly407 CIDForged CrankForged Pistons3.750 in Stroke4.155 in Bore5.700 in H Beam RodsSmall Block ChevyKitEAG12501030- SKU:
- EAG12501030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12501030
$2,519.99Qty in Cart: 0Quantity:Price:$2,519.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12020030
EAGLE
$2,636.99SBC Rotating Assembly Kit - CompetitionRotating Assembly357 CIDForged CrankForged Pistons3.500 in Stroke4.030 in Bore6.000 in H Beam RodsSmall Block ChevyKitEAG12020030- SKU:
- EAG12020030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12020030
$2,636.99Qty in Cart: 0Quantity:Price:$2,636.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12012060
EAGLE
$2,409.99SBC Rotating Assembly Kit - CompetitionRotating Assembly383 CIDForged CrankForged Pistons3.750 in Stroke4.060 in Bore6.000 in H Beam RodsSmall Block ChevyKitEAG12012060- SKU:
- EAG12012060
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12012060
$2,409.99Qty in Cart: 0Quantity:Price:$2,409.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12012040
EAGLE
$2,609.99SBC Rotating Assembly Kit - CompetitionRotating Assembly383 CIDForged CrankForged Pistons3.750 in Stroke4.040 in Bore6.000 in H Beam RodsSmall Block ChevyKitEAG12012040- SKU:
- EAG12012040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12012040
$2,609.99Qty in Cart: 0Quantity:Price:$2,609.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12012030
EAGLE
$2,409.99SBC Rotating Assembly Kit - 12012030 High-performance rotating assembly designed for competition use Engineered for 383 CID small block Chevy applications Durable forged crankshaft for enhanced strength and reliability Includes forged pistons for...EAG12012030- SKU:
- EAG12012030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12012030
$2,409.99Qty in Cart: 0Quantity:Price:$2,409.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12011060
EAGLE
$2,519.99SBC Rotating Assembly Kit - 12011060 Complete rotating assembly designed for high-performance applications Compatible with 383 CID small block Chevy engines Durable forged crank for enhanced strength and reliability High-quality forged pistons for...EAG12011060- SKU:
- EAG12011060
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12011060
$2,519.99Qty in Cart: 0Quantity:Price:$2,519.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12011030
EAGLE
$2,509.99SBC Rotating Assembly Kit - 12011030 Complete rotating assembly designed for high-performance applications Engineered for 383 CID small block Chevy engines Durable forged crankshaft for enhanced strength and longevity High-quality forged pistons ensure...EAG12011030- SKU:
- EAG12011030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12011030
$2,509.99Qty in Cart: 0Quantity:Price:$2,509.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12008030
EAGLE
$2,534.99SBC Rotating Assembly Kit - 12008030 High-performance Rotating Assembly designed for competition use Engineered for a powerful 383 CID configuration Features a robust forged crank for enhanced durability Includes precision-forged pistons for optimal...EAG12008030- SKU:
- EAG12008030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12008030
$2,534.99Qty in Cart: 0Quantity:Price:$2,534.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12007030
EAGLE
$2,613.99SBC Rotating Assembly Kit - CompetitionRotating Assembly383 CIDForged CrankForged Pistons3.750 in Stroke4.030 in Bore5.700 in H Beam RodsSmall Block ChevyKitEAG12007030- SKU:
- EAG12007030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12007030
$2,613.99Qty in Cart: 0Quantity:Price:$2,613.99Subtotal:
