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
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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 -
SBC 4340 Forged Crank - 3.750 Stroke 4-400-3750-6000
SCAT ENTERPRISES
$944.99If you're building a Small Block Chevy engine for racing or high-performance street use, stroke is everything—and the SBC 4340 Forged Crank delivers the displacement gains you need without compromising reliability. The 3.750-inch stroke paired with...SCA4-400-3750-6000- SKU:
- SCA4-400-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 59.65 LBS
- MFG Part #:
- 4-400-3750-6000
$944.99 -
SBC 4340 Forged Crank - 3.750 Stroke 4-400-3750-5700
SCAT ENTERPRISES
$944.99A forged steel crankshaft is the backbone of any high-rpm Small Block Chevy engine, and this 4340 unit is built to handle serious power without compromise. With a 3.750-inch stroke and internal balance design, you're getting a component engineered for...SCA4-400-3750-5700- SKU:
- SCA4-400-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 59.30 LBS
- MFG Part #:
- 4-400-3750-5700
$944.99 -
SBC 4340 Forged Crank - 3.500 Stroke 4-400-3500-6000
SCAT ENTERPRISES
$944.99A forged crankshaft is the foundation of any reliable high-performance small block build. The SBC 4340 delivers the durability needed for sustained high-RPM operation, while the 3.500" stroke provides a proven geometry for balanced power delivery across...SCA4-400-3500-6000- SKU:
- SCA4-400-3500-6000
- Availability:
- Ships Same Business Day
- Weight:
- 59.00 LBS
- MFG Part #:
- 4-400-3500-6000
$944.99 -
SBC 4340 Forged Crank - 4.000 Stroke 4-350-4000-6000
SCAT ENTERPRISES
$944.99A forged 4340 steel crankshaft is the foundation of any high-revving Small Block Chevy engine that demands reliability under sustained load. This internally balanced unit eliminates the need for external counterweights, simplifying installation and...SCA4-350-4000-6000- SKU:
- SCA4-350-4000-6000
- Availability:
- Ships Same Business Day
- Weight:
- 57.30 LBS
- MFG Part #:
- 4-350-4000-6000
$944.99 -
SBC L/W 4340 Forged Crank - 3.875 Stroke 4-350-3875-6000-2
SCAT ENTERPRISES
$2,281.99A forged 4340 crankshaft is the foundation of any high-RPM small block build. If you're pushing your SBC past 6,000 RPM or building a forced-induction engine, a lightweight forged crank eliminates rotating mass and dramatically improves throttle response...SCA4-350-3875-6000-2- SKU:
- SCA4-350-3875-6000-2
- Availability:
- Ships Same Business Day
- Weight:
- 48.00 LBS
- MFG Part #:
- 4-350-3875-6000-2
$2,281.99 -
SBC L/W 4340 Forged Crank - 3.750 Stroke 4-350-3750-6000-2
SCAT ENTERPRISES
$2,477.99A forged 4340 crankshaft is essential for any serious small-block Chevy build pushing high RPM or forced induction. The Pro Comp lightweight design reduces rotational mass, improving throttle response and allowing your engine to rev faster while...SCA4-350-3750-6000-2- SKU:
- SCA4-350-3750-6000-2
- Availability:
- Ships Same Business Day
- Weight:
- 52.05 LBS
- MFG Part #:
- 4-350-3750-6000-2
$2,477.99 -
SBC 4340 Forged Crank - 3.750 Stroke 4-350-3750-6000
SCAT ENTERPRISES
$944.99A quality crankshaft is the foundation of engine reliability and power delivery—especially in high-revving Small Block Chevy applications where precision matters. This 4340 forged crank delivers the stroke length and internal balance needed to unlock...SCA4-350-3750-6000- SKU:
- SCA4-350-3750-6000
- Availability:
- Ships Same Business Day
- Weight:
- 57.00 LBS
- MFG Part #:
- 4-350-3750-6000
$944.99 -
SBC 4340 Forged Crank - 3.750 Stroke 4-350-3750-5700-L
SCAT ENTERPRISES
$944.99A forged crankshaft is the backbone of any high-revving Small Block Chevy engine build—it handles the violent reciprocating forces that cast cranks simply cannot tolerate. This 4340 forged unit delivers the strength and reliability required for serious...SCA4-350-3750-5700-L- SKU:
- SCA4-350-3750-5700-L
- Availability:
- Ships Same Business Day
- Weight:
- 56.60 LBS
- MFG Part #:
- 4-350-3750-5700-L
$944.99 -
SBC 4340 Forged Crank - 3.750 Stroke 4-350-3750-5700
SCAT ENTERPRISES
$944.99A quality crankshaft is the backbone of any high-performance Small Block Chevy build—it's the component that directly translates combustion pressure into usable horsepower and torque. This 4340 forged crank delivers the stroke length and internal balance...SCA4-350-3750-5700- SKU:
- SCA4-350-3750-5700
- Availability:
- Ships Same Business Day
- Weight:
- 61.00 LBS
- MFG Part #:
- 4-350-3750-5700
$944.99Qty in Cart: 0Quantity:Price:$944.99Subtotal: -
SBC F-43 Forged Crank - 3.500 Stroke 4-350-3500-5700-21LW
SCAT ENTERPRISES
$1,279.99If you're building a small block Chevy engine that needs to handle sustained RPM and load cycles, a quality forged crankshaft is non-negotiable. The SBC F-43 delivers the strength and balance required for reliable performance, whether you're prepping for...SCA4-350-3500-5700-21LW- SKU:
- SCA4-350-3500-5700-21LW
- Availability:
- Ships Same Business Day
- Weight:
- 47.10 LBS
- MFG Part #:
- 4-350-3500-5700-21LW
$1,279.99Qty in Cart: 0Quantity:Price:$1,279.99Subtotal: -
SBC F-43 Forged Crank - 3.500 Stroke 4-350-3500-5700-18LW
SCAT ENTERPRISES
$1,279.99If you're building or rebuilding a small block Chevy engine for serious performance, your crankshaft is non-negotiable—it's the backbone of your bottom end. The SBC F-43 Forged Crank delivers the stroke geometry and internal balance you need for reliable...SCA4-350-3500-5700-18LW- SKU:
- SCA4-350-3500-5700-18LW
- Availability:
- Ships Same Business Day
- Weight:
- 45.25 LBS
- MFG Part #:
- 4-350-3500-5700-18LW
$1,279.99 -
SBC F-43 Forged Crank - 3.480 Stroke 4-350-3480-5700-21LW
SCAT ENTERPRISES
$1,279.99A quality forged crankshaft is the backbone of any high-performance Small Block Chevy build—it directly impacts power delivery, engine longevity, and reliability under boost or high RPM stress. The SBC F-43 combines premium forged steel construction with...SCA4-350-3480-5700-21LW- SKU:
- SCA4-350-3480-5700-21LW
- Availability:
- Ships Same Business Day
- Weight:
- 47.30 LBS
- MFG Part #:
- 4-350-3480-5700-21LW
$1,279.99 -
SBC F-43 Forged Crank - 3.480 Stroke 4-350-3480-5700-20LW
SCAT ENTERPRISES
$1,279.99A quality crankshaft is the backbone of reliable high-RPM performance—and the SBC F-43 Forged Crank delivers the strength and precision needed for serious Small Block builds. Whether you're pushing higher boost levels, extending your rev range, or simply...SCA4-350-3480-5700-20LW- SKU:
- SCA4-350-3480-5700-20LW
- Availability:
- Ships Same Business Day
- Weight:
- 46.15 LBS
- MFG Part #:
- 4-350-3480-5700-20LW
$1,279.99
