Crankshafts and Components
Circle Track Crankshafts & Components at JJ Motorsports
Crankshafts endure high-torque loads, converting piston movement into rotational force. Crafted for reliability, they are vital for competitive engines. Pair them with complementary engine solutions to unlock maximum torque and power in demanding IMCA, USMTS, and dirt oval racing for late models, modifieds, and street stocks.
Shop trusted brands like Manley for forged cranks, Allstar Performance for balancing plates, and Lunati for LS crankshafts. Explore related categories such as Circle Track Engines and Components for complete engine upgrades or Circle Track for chassis and suspension parts.
Top Circle Track Crankshafts & Components
- Manley SBC 4340 Forged Crank 3.480 Stroke/350 mains 190310 – Crankshaft 3.480 in Stroke Internal Balance Forged Steel 2 Piece Seal Small Block Chevy Each.
- Allstar Performance 400 Balancing Plate Balance plate ALL26120 – Balance Plate Steel Black Paint Small Block Chevy Each.
- Manley SBC 4340 Forged Crank 3.480 Stroke 350 Mains 190310NB – Crankshaft 3.480 in Stroke Internal Balance Forged Steel 2-Piece Seal Each.
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 4340 Forged Crank - 3.625 Stroke 435036255700
EAGLE
$870.99Built for serious small block builders who demand reliability under extreme power levels, the Eagle SBC 4340 Forged Crank delivers the strength and precision required for forced induction, nitrous, or high-RPM naturally aspirated applications. The 4340...EAG435036255700- SKU:
- EAG435036255700
- Availability:
- Ships Same Business Day
- Weight:
- 55.90 LBS
- MFG Part #:
- CRS435036255700
$870.99 -
Eagle SBC 4340 Forged Crank - 3.5625 Stroke 435035625700
EAGLE
$859.99Building a reliable high-displacement Small Block Chevy engine demands a crankshaft engineered to handle increased load and RPM stress. The Eagle SBC 4340 Forged Crank delivers the strength and precision needed for forced induction, naturally aspirated...EAG435035625700- SKU:
- EAG435035625700
- Availability:
- Ships Same Business Day
- Weight:
- 45.25 LBS
- MFG Part #:
- CRS435035625700
$859.99 -
Eagle SBC 4340 Forged Crank - 3.500 Stroke 435035005700
EAGLE
$946.99A forged crankshaft is the backbone of any high-output small-block engine, and the Eagle SBC 4340 delivers the strength and precision required for sustained performance whether you're building a street engine or a competition powerplant. The 3.500"...EAG435035005700- SKU:
- EAG435035005700
- Availability:
- Ships Same Business Day
- Weight:
- 55.60 LBS
- MFG Part #:
- CRS435035005700
$946.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke 435034805700
EAGLE
$931.99If you're building or rebuilding a Small Block Chevy engine for serious power, the Eagle SBC 4340 Forged Crank is a critical foundation. Forged 4340 steel delivers the strength and fatigue resistance needed for high-RPM sustained performance, while the...EAG435034805700- SKU:
- EAG435034805700
- Availability:
- Ships Same Business Day
- Weight:
- 55.00 LBS
- MFG Part #:
- CRS435034805700
$931.99 -
Eagle GM LS1 4340 Forged Crank - 4.000 Stroke 434640006100
EAGLE
$1,089.99A forged crankshaft is the backbone of any high-performance LS1 engine build, and Eagle's 4340 forged unit delivers the strength and reliability demanded by serious racers and built-engine enthusiasts. This internally balanced design eliminates the need...EAG434640006100- SKU:
- EAG434640006100
- Availability:
- Ships Same Business Day
- Weight:
- 57.90 LBS
- MFG Part #:
- CRS434640006100
$1,089.99Qty in Cart: 0Quantity:Price:$1,089.99Subtotal: -
Eagle GM LS1 4340 Forged Crank - 3.622 Stroke 434636226100
EAGLE
$1,093.99When you're building a high-displacement LS engine or pushing an existing platform to its limits, your crankshaft must handle extreme loads without compromise. The Eagle GM LS1 4340 Forged Crank delivers the strength and reliability required for serious...EAG434636226100- SKU:
- EAG434636226100
- Availability:
- Ships Same Business Day
- Weight:
- 58.80 LBS
- MFG Part #:
- CRS434636226100
$1,093.99 -
Eagle SBF 4340 Forged Crank - 3.400 Stroke 430234025400
EAGLE
$939.99A forged 4340 steel crankshaft is the foundation of any high-revving, high-horsepower Small Block Ford engine build. The Eagle SBF 4340 delivers the strength and reliability needed to handle aggressive power levels without sacrificing durability, making...EAG430234025400- SKU:
- EAG430234025400
- Availability:
- Ships Same Business Day
- Weight:
- 50.30 LBS
- MFG Part #:
- CRS430234025400
$939.99 -
Eagle SBF 4340 Forged Crank - 3.000 Stroke 430230015090
EAGLE
$812.99A forged 4340 steel crankshaft is the foundation of a reliable, high-RPM Small Block Ford engine build. The Eagle SBF crank delivers the stroke length and internal balance geometry needed to support aggressive power outputs while maintaining durability...EAG430230015090- SKU:
- EAG430230015090
- Availability:
- Ships Same Business Day
- Weight:
- 49.40 LBS
- MFG Part #:
- CRS430230015090
$812.99 -
Eagle SBC Cast Steel Crank - 3.750 Stroke 103523750
EAGLE
$346.99A quality crankshaft is the foundation of any reliable small block Chevy engine build. The Eagle SBC Cast Steel Crank delivers proven durability and precise stroke geometry for street, strip, and track applications without the premium price tag of forged...EAG103523750- SKU:
- EAG103523750
- Availability:
- Ships Same Business Day
- Weight:
- 52.80 LBS
- MFG Part #:
- CRS103523750
$346.99 -
Eagle SBC Cast Steel Crank - 3.480 Stroke 103523480
EAGLE
$335.99The Eagle SBC Cast Steel Crank delivers the stroke you need for increased displacement and torque output in your Small Block Chevy build. Whether you're upgrading from a stock unit or assembling a high-displacement engine, this cast iron crankshaft...EAG103523480- SKU:
- EAG103523480
- Availability:
- Ships Same Business Day
- Weight:
- 52.95 LBS
- MFG Part #:
- CRS103523480
$335.99Qty in Cart: 0Quantity:Price:$335.99Subtotal: -
Eagle SBC Cast Steel Crank - 3.750 Stroke 103503750
EAGLE
$358.99A quality crankshaft is the foundation of any reliable small-block Chevy engine build. The Eagle SBC Cast Steel Crank delivers the stroke length and external balance characteristics you need for consistent power delivery and durability in both street and...EAG103503750- SKU:
- EAG103503750
- Availability:
- Ships Same Business Day
- Weight:
- 52.05 LBS
- MFG Part #:
- CRS103503750
$358.99 -
Eagle SBC Cast Steel Crank - 3.480 Stroke (IMCA) 103503480CM
EAGLE
$403.99For IMCA racers and SBC builders who demand reliability in competition, the Eagle SBC Cast Steel Crank delivers the durability needed to withstand repeated high-RPM cycles without compromise. This internally balanced 3.480-stroke unit is purpose-built...EAG103503480CM- SKU:
- EAG103503480CM
- Availability:
- Ships Same Business Day
- Weight:
- 54.70 LBS
- MFG Part #:
- CRS103503480CM
$403.99 -
Eagle SBC Cast Steel Crank - 3.480 Stroke 103503480
EAGLE
$349.99A quality crankshaft is the foundation of engine reliability and performance—it directly impacts your power delivery, longevity, and how your engine handles sustained RPM loads. The Eagle SBC Cast Steel Crank delivers the durability you need for street...EAG103503480- SKU:
- EAG103503480
- Availability:
- Ships Same Business Day
- Weight:
- 51.55 LBS
- MFG Part #:
- CRS103503480
$349.99 -
Eagle SBF Cast Steel Crank - 3.400 Stroke 103023402
EAGLE
$332.99The Eagle SBF Cast Steel Crank with 3.400" stroke delivers the displacement and durability your Small Block Ford build demands, whether you're chasing reliable street performance or track-proven reliability. Cast steel construction provides excellent...EAG103023402- SKU:
- EAG103023402
- Availability:
- Ships Same Business Day
- Weight:
- 43.65 LBS
- MFG Part #:
- CRS103023402
$332.99Qty in Cart: 0Quantity:Price:$332.99Subtotal: -
Eagle SBF Cast Steel Crank - 3.250 Stroke 103023252
EAGLE
$316.99If you're building a Small Block Ford engine that demands reliability and proven performance, the Eagle SBF Cast Steel Crank delivers the durability you need for sustained high RPM operation. This externally balanced crankshaft is engineered for...EAG103023252- SKU:
- EAG103023252
- Availability:
- Ships Same Business Day
- Weight:
- 43.00 LBS
- MFG Part #:
- CRS103023252
$316.99 -
SBC 4340 Forged Compstar Crank - 3.335 Stroke SAX-143-CC
CALLIES
$1,020.00A forged 4340 steel crankshaft is the backbone of any high-revving SBC engine build—it handles the extreme pressures of forced induction and high-RPM operation without compromise. The Compstar Comet delivers the strength and reliability you need when...CALSAX143-CC- SKU:
- CALSAX143-CC
- Availability:
- Ships Same Business Day
- Weight:
- 47.00 LBS
- MFG Part #:
- SAX143-CC
$1,020.00 -
SBC 4340 Forged Magnum Crank - 4.000 Stroke SAO-21A-MG
CALLIES
$3,723.00Building a high-displacement small block engine demands a crankshaft that can handle increased stroke volume and the forces that come with it. The SBC 4340 Forged Magnum Crank delivers the durability and precision needed for serious power while...CALSAO21A-MG- SKU:
- CALSAO21A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 55.00 LBS
- MFG Part #:
- SAO21A-MG
$3,723.00Qty in Cart: 0Quantity:Price:$3,723.00Subtotal: -
SBC 4340 Forged Magnum Crank - 3.875 Stroke SAM14A-MG
CALLIES
$3,510.00A quality crankshaft is the foundation of reliable engine performance—and the SBC 4340 Forged Magnum Crank delivers the strength and precision you need for consistent power delivery, whether you're building a street engine or a track-ready platform...CALSAM14A-MG- SKU:
- CALSAM14A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 53.70 LBS
- MFG Part #:
- SAM14A-MG
$3,510.00Qty in Cart: 0Quantity:Price:$3,510.00Subtotal: -
SBC 4340 Forged Magnum Crank - 3.875 Stroke SAM-11A-MG
CALLIES
$3,510.00A forged 4340 steel crankshaft is the foundation of any high-performance small-block Chevy engine, and this 3.875" stroke Magnum crank delivers the strength and precision needed for sustained high-RPM operation. Whether you're building a street performer...CALSAM11A-MG- SKU:
- CALSAM11A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 53.40 LBS
- MFG Part #:
- SAM11A-MG
$3,510.00 -
SBC 4340 Forged Magnum Crank - 3.800 Stroke SAK-21A-MG
CALLIES
$3,510.00If you're building a high-displacement Small Block Chevy engine, the 3.800-inch stroke is the foundation of your power band—and this forged 4340 crank delivers the strength and precision needed to handle serious boost and aggressive cam profiles without...CALSAK21A-MG- SKU:
- CALSAK21A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 52.45 LBS
- MFG Part #:
- SAK21A-MG
$3,510.00Qty in Cart: 0Quantity:Price:$3,510.00Subtotal:
