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
-
Eagle SBC Balanced Rotating Assembly - 383 .030 KITB15454E030
EAGLE
$1,293.99Building a reliable 383 Small Block Chevy requires a rotating assembly engineered for consistent power delivery and durability—the Eagle SBC Balanced Rotating Assembly delivers both with factory-spec precision. This complete kit eliminates the guesswork...EAGB15454E030- SKU:
- EAGB15454E030
- Availability:
- Ships Same Business Day
- Weight:
- 95.00 LBS
$1,293.99 -
Eagle SBC Street Perf Engine Assembly Balanced KITB15405E060
EAGLE
$1,529.99Building a street-performance Small Block Chevy demands a rotating assembly engineered for reliability under sustained load and heat. The Eagle SBC Street Perf delivers a balanced, internally matched rotating assembly that eliminates guesswork and...EAGB15405E060- SKU:
- EAGB15405E060
- Availability:
- Ships Same Business Day
- Weight:
- 95.00 LBS
$1,529.99 -
Eagle SBC Balanced Rotating Assembly Kit KITB15402E040
EAGLE
$1,209.99A balanced rotating assembly is the foundation of any reliable SBC build, and this Eagle kit delivers the durability and performance characteristics you need for street and strip applications. The hypereutectic piston design combined with a cast crank...EAGB15402E040- SKU:
- EAGB15402E040
- Availability:
- Ships Same Business Day
- Weight:
- 88.00 LBS
$1,209.99 -
Eagle SBF Rotating Assembly Kit 289/302 16003040
EAGLE
$1,575.99A rotating assembly is the foundation of any reliable high-performance engine build. This Eagle kit delivers a bulletproof combination of a cast iron crank paired with forged pistons and I-beam connecting rods—giving you the structural integrity needed...EAG16003040- SKU:
- EAG16003040
- Availability:
- Ships Same Business Day
- Weight:
- 85.00 LBS
$1,575.99 -
Eagle SBC Rotating Assembly Kit - Street & Strip 13202040
EAGLE
$1,334.99A strong rotating assembly is the foundation of any reliable small block Chevy build, whether you're prepping for weekend strip runs or street duty. The Eagle SBC kit delivers proven durability with a forged-quality cast crank and hypereutectic pistons...EAG13202040- SKU:
- EAG13202040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,334.99Qty in Cart: 0Quantity:Price:$1,334.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Street & Strip 13202030
EAGLE
$1,334.99A reliable rotating assembly is the foundation of any street or strip Small Block Chevy build—get it wrong and you're looking at catastrophic failure. The Eagle SBC Rotating Assembly Kit delivers OEM-quality components engineered for consistent power...EAG13202030- SKU:
- EAG13202030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,334.99Qty in Cart: 0Quantity:Price:$1,334.99Subtotal: -
Eagle SBC Rotating Assembly Kit Street/Strip 13056030
EAGLE
$1,620.99A rotating assembly is the foundation of any reliable high-performance engine—when you're pushing power on the street or at the strip, your crank, pistons, and rods need to work in perfect harmony. The Eagle SBC 383 delivers forged pistons and a proven...EAG13056030- SKU:
- EAG13056030
- Availability:
- Ships Same Business Day
- Weight:
- 55.00 LBS
$1,620.99 -
Eagle SBC Rotating Assembly Kit - Street & Strip 13021040
EAGLE
$1,653.99A solid rotating assembly is the foundation of any high-performance small block build, and this Eagle kit delivers the reliability you need whether you're hitting the strip or cruising the street. The forged piston and cast crank combination gives you...EAG13021040- SKU:
- EAG13021040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,653.99Qty in Cart: 0Quantity:Price:$1,653.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Street & Strip 13021030
EAGLE
$1,653.99A rotating assembly is the foundation of any serious engine build—get this wrong, and you're headed for catastrophic failure. The Eagle SBC kit delivers a complete, matched set of premium components engineered specifically for Small Block Chevy...EAG13021030- SKU:
- EAG13021030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,653.99 -
Eagle SBC Rotating Assembly Kit - Street & Strip 13020030
EAGLE
$1,752.99A complete rotating assembly is the foundation of any serious Small Block Chevy build—and this Eagle kit delivers the strength and precision you need for consistent power whether you're running street duty or hitting the strip. With a proven cast...EAG13020030- SKU:
- EAG13020030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,752.99Qty in Cart: 0Quantity:Price:$1,752.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Street & Strip 13010040
EAGLE
$1,337.99Building a 406 cubic inch Small Block Chevy that delivers reliable power across street and strip applications demands a rotating assembly engineered for both durability and consistent performance. The Eagle SBC Rotating Assembly Kit combines a cast iron...EAG13010040- SKU:
- EAG13010040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,337.99Qty in Cart: 0Quantity:Price:$1,337.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Street & Strip 13007030
EAGLE
$1,653.99Building a 383 Small Block Chevy that delivers reliable power across street and strip applications demands a rotating assembly engineered for both durability and performance. The Eagle SBC Rotating Assembly Kit gives you a factory-backed foundation with...EAG13007030- SKU:
- EAG13007030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,653.99Qty in Cart: 0Quantity:Price:$1,653.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Street & Strip 13006030
EAGLE
$1,653.99Building a 383 cubic-inch Small Block Chevy that can handle both street cruising and strip duty demands a rotating assembly engineered for reliability under sustained load. The Eagle SBC Rotating Assembly Kit delivers the core components you need—a...EAG13006030- SKU:
- EAG13006030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,653.99 -
Eagle SBC Rotating Assembly Kit - Street & Strip 13005040
EAGLE
$1,350.99Building a reliable 383 stroker that delivers consistent power across street and strip applications demands a rotating assembly engineered for both durability and performance. The Eagle SBC Rotating Assembly Kit combines a cast iron crank with...EAG13005040- SKU:
- EAG13005040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,350.99 -
Eagle SBC Rotating Assembly Kit - Street & Strip 13005030
EAGLE
$1,350.99If you're building a street-strip 383 small block that demands reliability without compromise, the Eagle SBC Rotating Assembly Kit delivers the foundation every serious engine needs. This fully-machined kit eliminates the guesswork of sourcing individual...EAG13005030- SKU:
- EAG13005030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,350.99Qty in Cart: 0Quantity:Price:$1,350.99Subtotal: -
Eagle SBF Rotating Assembly Kit - Street & Strip 16004030
EAGLE
$1,680.99Building a Street & Strip 347 small block? The Eagle SBF Rotating Assembly Kit delivers the strength you need for both boulevard cruising and track duty. This kit pairs a cast iron crank with forged pistons and I-beam rods—a proven combination that...EAG16004030- SKU:
- EAG16004030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT16004030
$1,680.99Qty in Cart: 0Quantity:Price:$1,680.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12029030
EAGLE
$2,783.99A competition-grade rotating assembly is the foundation of reliable, repeatable power output in high-revving small block engines. The Eagle SBC kit delivers forged strength throughout—from crank to pistons to rods—giving you the durability to push harder...EAG12029030- SKU:
- EAG12029030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12029030
$2,783.99Qty in Cart: 0Quantity:Price:$2,783.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12020040
EAGLE
$2,509.99Building a competition-grade Small Block Chevy engine demands a rotating assembly engineered for sustained high RPM and cylinder pressure—this kit delivers exactly that with forged internals throughout. The Eagle SBC Rotating Assembly gives you the...EAG12020040- SKU:
- EAG12020040
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12020040
$2,509.99 -
Eagle SBC Rotating Assembly Kit - Competition 12004060
EAGLE
$2,660.99When you're building a competition engine, the rotating assembly is your foundation—and compromises here will cost you power, reliability, and race wins. The Eagle SBC Rotating Assembly Kit delivers forged internals engineered to withstand the demands of...EAG12004060- SKU:
- EAG12004060
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12004060
$2,660.99Qty in Cart: 0Quantity:Price:$2,660.99Subtotal: -
Eagle SBC Rotating Assembly Kit - Competition 12004030
EAGLE
$2,650.99Build a Small Block Chevy that delivers reliable power without compromise. This Eagle competition rotating assembly pairs forged internals with precision engineering to handle sustained high-RPM operation, making it ideal for street/strip builds and...EAG12004030- SKU:
- EAG12004030
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- KIT12004030
$2,650.99Qty in Cart: 0Quantity:Price:$2,650.99Subtotal:
