Crankshafts
Circle Track Crankshafts at JJ Motorsports
Convert piston motion into reliable rotational power with high-quality crankshafts from JJ Motorsports. Engineered for intense racing conditions, these forged steel cranks deliver exceptional durability and precision for Small Block Chevy, LS, and other engines in late models, modifieds, and street stocks, ensuring optimal torque and horsepower on demanding dirt ovals.
Shop trusted brands like Manley for 4340 forged options, Lunati for Voodoo series, Eagle for balanced cranks, and Scat Enterprises for high-stroke designs. Explore related categories such as Circle Track Crankshafts and Components for balancing plates or Circle Track Engines and Components for complete upgrades.
Top Circle Track Crankshafts
- 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.
- Manley SBC 4340 Forged Crank 3.480 Stroke 350 Mains 190310NB – Crankshaft 3.480 in Stroke Internal Balance Forged Steel 2-Piece Seal Each.
- GM LS 4340 Forged Crank 4.000 Stroke 70840001 – Crankshaft Voodoo 4.000 in Stroke Internal Balance Forged Steel GM LS-Series 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
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Manley SBC 4340 Forged Crank 3.480 Stroke/350 mains 190310
MANLEY
$934.61If you're building a high-revving Small Block Chevy engine or upgrading from a cast-iron unit, a forged crankshaft is non-negotiable. The Manley SBC 4340 Forged Crank delivers the strength and reliability needed to handle increased boost, nitrous, or...MAN190310- SKU:
- MAN190310
- Availability:
- Ships Same Business Day
- Weight:
- 56.00 LBS
- MFG Part #:
- 190310
$934.61 -
Manley SBC 4340 Forged Crank 3.480 Stroke 350 Mains 190310NB
MANLEY
$909.69A forged 4340 steel crankshaft is the backbone of any high-output small-block Chevy build. Manley's 3.480" stroke design delivers the stroke length needed for increased displacement and torque production without sacrificing reliability. The internal...MAN190310NB- SKU:
- MAN190310NB
- Availability:
- Ships Same Business Day
- Weight:
- 56.00 LBS
$909.69 -
GM LS 4340 Forged Crank 4.000 Stroke 70840001
LUNATI
$929.99A forged crankshaft is the foundation of any high-output LS engine build, and this Voodoo unit delivers the strength and precision needed to handle serious horsepower and boost. Built from 4340 forged steel with a 4.000-inch stroke, it's engineered to...LNT70840001- SKU:
- LNT70840001
- Availability:
- Ships Same Business Day
- Weight:
- 54.00 LBS
$929.99Qty in Cart: 0Quantity:Price:$929.99Subtotal: -
SBF 4340 Forged Crank 3.400 Stroke Int Balance 70534001
LUNATI
$665.99A forged 4340 steel crankshaft is the backbone of any high-revving small-block engine build, delivering the strength and reliability needed to handle aggressive power levels without compromise. The Voodoo SBF 4340 with internal balancing eliminates the...LNT70534001- SKU:
- LNT70534001
- Availability:
- Ships Same Business Day
- Weight:
- 53.00 LBS
$665.99 -
Eagle SBC 4340 Forged Crank. 3.750 Stroke 350 Mains CRS4350375057BN
EAGLE
$971.99A forged crankshaft is the foundation of any high-output Small Block Chevy build, and the Eagle SBC 4340 delivers the strength and reliability required for sustained high-RPM performance. Whether you're pushing additional boost, higher compression...EAG4350375057BN- SKU:
- EAG4350375057BN
- Availability:
- Ships Same Business Day
- Weight:
- 58.00 LBS
$971.99 -
SBC 4340 Forged Crank - 4.000 Stroke 7-350-4000-6000
SCAT ENTERPRISES
$993.99A forged 4340 steel crankshaft is the foundation of any high-revving small-block engine that demands reliability under sustained boost or nitrous oxide. This internally balanced Excalibur crank eliminates the need for external balancing weights,...SCA7-350-4000-6000- SKU:
- SCA7-350-4000-6000
- Availability:
- Ships Same Business Day
- Weight:
- 54.00 LBS
$993.99Qty in Cart: 0Quantity:Price:$993.99Subtotal: -
SBC 4340 Forged Crank - 3.875 Stroke 7-350-3875-6000
SCAT ENTERPRISES
$993.99A forged crankshaft is the backbone of any high-revving small block engine—it handles the extreme forces of combustion while maintaining the tight tolerances that separate a reliable powerplant from a catastrophic failure. The Excalibur SBC 4340 forged...SCA7-350-3875-6000- SKU:
- SCA7-350-3875-6000
- Availability:
- Ships Same Business Day
- Weight:
- 54.00 LBS
$993.99 -
SBC 4340 Forged Crank - 3.480 Stroke 7-350-3480-5700
SCAT ENTERPRISES
$993.99A forged 4340 steel crankshaft is the foundation of any reliable high-RPM small block build. The Excalibur 3.480" stroke delivers the displacement and durability you need for consistent power delivery, whether you're building a street performer or race...SCA7-350-3480-5700- SKU:
- SCA7-350-3480-5700
- Availability:
- Ships Same Business Day
- Weight:
- 52.00 LBS
$993.99Qty in Cart: 0Quantity:Price:$993.99Subtotal: -
Eagle SBC 305 Forged 4340 Crank 3.500 Stroke/5.700 4349350057LA
EAGLE
$975.99A quality crankshaft is the foundation of any high-revving Small Block Chevy build—without precision in this critical component, you're compromising reliability and performance across the entire engine. The Eagle SBC 305 Forged 4340 Crank delivers the...EAG4349350057LA- SKU:
- EAG4349350057LA
- Availability:
- Ships Same Business Day
- Weight:
- 51.30 LBS
$975.99 -
SBC Cast Steel Crank 3.750 Stroke 9-400-3750-6000
SCAT ENTERPRISES
$361.99A lightweight crankshaft is fundamental to building a high-revving Small Block Chevy engine that responds instantly and maintains durability under sustained load. The Pro Comp 9000 Series reduces rotating mass, which decreases parasitic drag and allows...SCA9-400-3750-6000- SKU:
- SCA9-400-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 54.30 LBS
- MFG Part #:
- 9-400-3750-6000
$361.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-400-3750-5700
SCAT ENTERPRISES
$361.99A properly engineered crankshaft is the backbone of any high-performance small block Chevy engine, and this cast steel unit delivers the stroke geometry and durability you need for sustained power delivery. The 3.750-inch stroke optimizes displacement...SCA9-400-3750-5700- SKU:
- SCA9-400-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 52.55 LBS
- MFG Part #:
- 9-400-3750-5700
$361.99 -
SBC Cast Steel Crank - 3.500 Stroke 9-400-3500-6000
SCAT ENTERPRISES
$361.99A quality crankshaft is the foundation of any reliable engine build, and this Pro Comp lightweight design delivers the precision and durability that separates a solid street engine from a fragile race motor. The 3.500" stroke gives you the displacement...SCA9-400-3500-6000- SKU:
- SCA9-400-3500-6000
- Availability:
- Ships Same Business Day
- Weight:
- 54.50 LBS
- MFG Part #:
- 9-400-3500-6000
$361.99 -
SBF Cast Steel Crank - 3.850 Stroke 9-351-385-5955-2311W
SCAT ENTERPRISES
$481.99A quality crankshaft is the backbone of any high-revving small block Ford engine, and this Pro Comp 9000 Series cast iron unit delivers the stroke you need for increased displacement and torque output without breaking the bank. The 3.850-inch stroke is a...SCA9-351-385-5955-2311W- SKU:
- SCA9-351-385-5955-2311W
- Availability:
- Ships Same Business Day
- Weight:
- 62.80 LBS
- MFG Part #:
- 9-351-385-5955-2311W
$481.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-350-3750-6000
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of any reliable small-block Chevy engine build. The Pro Comp Lightweight 9000 Series delivers reduced rotating mass without compromising durability, allowing your engine to rev faster and more efficiently while...SCA9-350-3750-6000- SKU:
- SCA9-350-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 51.55 LBS
- MFG Part #:
- 9-350-3750-6000
$333.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-350-3750-5700-L
SCAT ENTERPRISES
$333.99A quality crankshaft is the backbone of any high-revving small block build—it's where durability meets displacement. The Pro Comp Lightweight 9000 Series delivers the strength you need for sustained high-RPM performance without the rotating mass penalty...SCA9-350-3750-5700-L- SKU:
- SCA9-350-3750-5700-L
- Availability:
- Ships Same Business Day
- Weight:
- 53.05 LBS
- MFG Part #:
- 9-350-3750-5700-L
$333.99 -
SBC Cast Steel Crank - 3.750 Stroke 9-350-3750-5700
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of reliable horsepower—this SBC cast steel crank delivers the stroke geometry and external balance you need for consistent performance across high-RPM applications. Whether you're building a street engine or...SCA9-350-3750-5700- SKU:
- SCA9-350-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 49.00 LBS
- MFG Part #:
- 9-350-3750-5700
$333.99 -
SBC Cast Steel Crank - 3.480 Stroke 9-350-3480-5700
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of any reliable high-performance engine build—it's the component that converts combustion energy into usable power, and it absolutely cannot fail under load. The Pro Comp Lightweight 9000 Series delivers the...SCA9-350-3480-5700- SKU:
- SCA9-350-3480-5700
- Availability:
- Ships Same Business Day
- Weight:
- 52.90 LBS
- MFG Part #:
- 9-350-3480-5700
$333.99 -
SBF Cast Steel Crank - 3.400 Stroke 9-302-3400-5400-2123
SCAT ENTERPRISES
$333.99A quality crankshaft is the foundation of any reliable engine build, and the Pro Comp 9000 Series delivers the precision and durability demanded by serious racers and high-performance enthusiasts. With a 3.400" stroke, this cast iron crank provides the...SCA9-302-3400-5400-2123- SKU:
- SCA9-302-3400-5400-2123
- Availability:
- Ships Same Business Day
- Weight:
- 46.60 LBS
- MFG Part #:
- 9-302-3400-5400-2123
$333.99 -
SBC F-43 Forged Crank - 4.000 Stroke 4-400-4000-6000-21LW
SCAT ENTERPRISES
$1,279.99A forged crankshaft is the backbone of any high-revving small block Chevy engine build—it's where durability meets displacement. The SBC F-43 delivers the 4.000-inch stroke you need for increased cubic inches and torque, while its forged steel...SCA4-400-4000-6000-21LW- SKU:
- SCA4-400-4000-6000-21LW
- Availability:
- Ships Same Business Day
- Weight:
- 49.90 LBS
- MFG Part #:
- 4-400-4000-6000-21LW
$1,279.99Qty in Cart: 0Quantity:Price:$1,279.99Subtotal: -
SBC 4340 Forged Crank - 3.875 Stroke 4-400-3875-6000
SCAT ENTERPRISES
$944.99A quality crankshaft is the backbone of any high-performance small block build—it directly affects your engine's power delivery, reliability, and longevity. The SBC 4340 Forged Crank delivers the stroke and durability you need to extract maximum torque...SCA4-400-3875-6000- SKU:
- SCA4-400-3875-6000
- Availability:
- Ships Same Business Day
- Weight:
- 58.70 LBS
- MFG Part #:
- 4-400-3875-6000
$944.99
