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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Eagle SBC 4340 Forged Crank - 4.000 Stroke 440040006000
EAGLE
$897.99A quality crankshaft is the backbone of any high-performance small block Chevy build—it directly impacts power delivery, engine longevity, and overall reliability. The Eagle SBC 4340 Forged Crank delivers the stroke length and material integrity serious...EAG440040006000- SKU:
- EAG440040006000
- Availability:
- Ships Same Business Day
- Weight:
- 59.15 LBS
- MFG Part #:
- CRS440040006000
$897.99Qty in Cart: 0Quantity:Price:$897.99Subtotal: -
Eagle SBC 4340 Forged Crank - 3.875 Stroke 440038756000
EAGLE
$932.99A forged crankshaft is the backbone of any high-output small block engine build. The Eagle SBC 4340 delivers the strength and reliability needed to handle increased boost, nitrous, or naturally aspirated power without risking catastrophic failure. With a...EAG440038756000- SKU:
- EAG440038756000
- Availability:
- Ships Same Business Day
- Weight:
- 59.95 LBS
- MFG Part #:
- CRS440038756000
$932.99 -
Eagle SBC 4340 Forged Crank - 3.750 Stroke 435337505700
EAGLE
$898.99A forged crank is the foundation of a reliable, high-RPM Small Block Chevy build. The Eagle SBC 4340 delivers the strength and precision needed to handle aggressive cam profiles, nitrous systems, and forced induction without compromise. With internal...EAG435337505700- SKU:
- EAG435337505700
- Availability:
- Ships Same Business Day
- Weight:
- 55.35 LBS
- MFG Part #:
- CRS435337505700
$898.99 -
Eagle SBF 4340 Forged Crank - 4.1700 Stroke 435241706200
EAGLE
$961.99A quality forged crankshaft is the foundation of any reliable high-performance engine build. The Eagle SBF 4340 Forged Crank delivers the strength and precision needed to handle increased boost, higher RPM, and sustained power delivery without...EAG435241706200- SKU:
- EAG435241706200
- Availability:
- Ships Same Business Day
- Weight:
- 61.90 LBS
- MFG Part #:
- CRS435241706200
$961.99 -
Eagle SBF 4340 Forged Crank - 4.170 Stroke 435141706200
EAGLE
$961.99Built from 4340 forged steel, this Eagle crankshaft delivers the strength and reliability demanded by serious small block Ford builders pushing high RPM and boost levels. The 4.170 stroke provides the displacement and torque characteristics you need...EAG435141706200- SKU:
- EAG435141706200
- Availability:
- Ships Same Business Day
- Weight:
- 61.75 LBS
- MFG Part #:
- CRS435141706200
$961.99 -
Eagle SBC 4340 Forged Crank - 3.750 Stroke 435037505700
EAGLE
$930.99If you're building a Small Block Chevy engine that needs to handle serious RPMs and sustained power, a quality forged crankshaft is non-negotiable. The Eagle SBC 4340 Forged Crank delivers the strength and precision required for high-performance...EAG435037505700- SKU:
- EAG435037505700
- Availability:
- Ships Same Business Day
- Weight:
- 55.90 LBS
- MFG Part #:
- CRS435037505700
$930.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke - L/W 4350348057LA
EAGLE
$955.99A forged crankshaft is the backbone of any high-revving Small Block Chevy engine, and the Eagle SBC 4340 delivers the strength and reliability required for sustained performance at the track or on the dyno. The 3.480-inch stroke paired with lightweight...EAG4350348057LA- SKU:
- EAG4350348057LA
- Availability:
- Ships Same Business Day
- Weight:
- 51.75 LBS
- MFG Part #:
- CRS4350348057LA
$955.99 -
Eagle SBC Cast Steel Crank - 3.750 Stroke 104003750
EAGLE
$351.99A quality crankshaft is the foundation of any reliable small block Chevy engine—it directly impacts longevity, power delivery, and overall durability under load. The Eagle SBC Cast Steel Crank delivers proven performance with external balance design and...EAG104003750- SKU:
- EAG104003750
- Availability:
- Ships Same Business Day
- Weight:
- 53.90 LBS
- MFG Part #:
- CRS104003750
$351.99 -
Eagle SBF 351W Cast Steel Crank - 3.850 Stroke 103513850
EAGLE
$442.99A quality crankshaft is the backbone of any high-revving small block Ford engine, and this Eagle 351W cast steel crank delivers the proven durability you need for consistent performance on the track or in your build. The 3.850-inch stroke gives you the...EAG103513850- SKU:
- EAG103513850
- Availability:
- Ships Same Business Day
- Weight:
- 59.95 LBS
- MFG Part #:
- CRS103513850
$442.99 -
Eagle SBC Cast Steel Crank - 3.750 Stroke 10350375057I
EAGLE
$399.99A quality crankshaft is the foundation of any reliable small-block Chevy build, and the Eagle SBC Cast Steel Crank delivers the durability and precision your engine demands. Whether you're rebuilding a street engine or supporting a performance...EAG10350375057I- SKU:
- EAG10350375057I
- Availability:
- Ships Same Business Day
- Weight:
- 52.60 LBS
- MFG Part #:
- CRS10350375057I
$399.99 -
Eagle SBF Cast Steel Crank - 3.000 Stroke 103023000-50
EAGLE
$356.99If you're building or rebuilding a Small Block Ford engine, crankshaft selection directly impacts reliability and performance. The Eagle SBF Cast Steel Crank delivers the stroke geometry and external balance characteristics needed for smooth, consistent...EAG103023000-50- SKU:
- EAG103023000-50
- Availability:
- Ships Same Business Day
- Weight:
- 44.05 LBS
- MFG Part #:
- CRS103023000-50
$356.99 -
Eagle SBF Cast Steel Crank - 3.000 Stroke 103023000
EAGLE
$321.99A crankshaft is the backbone of your engine's reliability and efficiency. The Eagle SBF Cast Steel Crank delivers the stroke geometry and external balance characteristics necessary for consistent performance across a wide RPM range, whether you're...EAG103023000- SKU:
- EAG103023000
- Availability:
- Ships Same Business Day
- Weight:
- 45.25 LBS
- MFG Part #:
- CRS103023000
$321.99 -
SBC 4340 Forged Magnum Crank - 3.335 Stroke SAX-14A-MG
CALLIES
$3,184.00A forged 4340 steel crankshaft is the foundation of any reliable high-performance small block Chevy engine—it's engineered to handle sustained boost, aggressive cam profiles, and high RPM loads without deflection or failure. The SAX-14A-MG's internal...CALSAX14A-MG- SKU:
- CALSAX14A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 23.76 LBS
- MFG Part #:
- SAX14A-MG
$3,184.00Qty in Cart: 0Quantity:Price:$3,184.00Subtotal: -
SBC 4340 Forged Magnum Crank - 4.000 Stroke SAO11A-MG
CALLIES
$3,510.00If you're building a high-revving small block Chevy engine, your crankshaft needs to handle the punishment of sustained performance without flex or failure. The SBC 4340 Forged Magnum Crank delivers the structural integrity and precision geometry...CALSAO11A-MG- SKU:
- CALSAO11A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 53.50 LBS
- MFG Part #:
- SAO11A-MG
$3,510.00Qty in Cart: 0Quantity:Price:$3,510.00Subtotal: -
SBC 4340 Forged Compstar Crank - 4.000 Stroke SAO-113-CS
CALLIES
$1,029.00A forged crankshaft is the foundation of any high-revving Small Block Chevy engine build—it's the component that converts combustion force into rotational power, and it needs to withstand extreme stress without failure. The Compstar 4340 forged crank...CALSAO113-CS- SKU:
- CALSAO113-CS
- Availability:
- Ships Same Business Day
- Weight:
- 56.00 LBS
- MFG Part #:
- SAO113-CS
$1,029.00 -
SBC 4340 Forged Compstar Crank - 3.875 Stroke SAM-113-CS
CALLIES
$1,029.00A forged crankshaft is the backbone of any high-revving Small Block Chevy engine—it needs to withstand extreme loads without flex or failure. The SBC 4340 Forged Compstar Crank delivers the strength and reliability required for serious racing and...CALSAM113-CS- SKU:
- CALSAM113-CS
- Availability:
- Ships Same Business Day
- Weight:
- 56.00 LBS
- MFG Part #:
- SAM113-CS
$1,029.00Qty in Cart: 0Quantity:Price:$1,029.00Subtotal: -
SBC 4340 Forged Magnum Crank - 3.750 Stroke SAJ11A-MG
CALLIES
$3,184.00If you're building a high-output Small Block Chevy engine, your crankshaft needs to handle sustained RPM and cylinder pressure without compromise. The SBC 4340 Forged Magnum Crank delivers the strength and precision required for serious racing and forced...CALSAJ11A-MG- SKU:
- CALSAJ11A-MG
- Availability:
- Ships Same Business Day
- Weight:
- 53.00 LBS
- MFG Part #:
- SAJ11A-MG
$3,184.00 -
SBC 4340 Forged Compstar Crank 3.625 Stroke SAH113-CM
CALLIES
$854.00A quality crankshaft is the foundation of any reliable high-performance small block Chevy engine, and this Compstar 4340 forged crank delivers the strength and precision you need for consistent power delivery across the RPM band. Built from premium 4340...CALSAH113-CM- SKU:
- CALSAH113-CM
- Availability:
- Ships Same Business Day
- Weight:
- 50.00 LBS
- MFG Part #:
- SAH113-CM
$854.00Qty in Cart: 0Quantity:Price:$854.00Subtotal: -
SBC 4340 Forged Compstar Crank 3.480 Stroke SAF143-CC
CALLIES
$1,238.00A forged 4340 steel crankshaft is the backbone of any serious small-block Chevy engine build, and the Compstar Crank delivers the strength and precision required for high-RPM performance and forced induction applications. This internally balanced design...CALSAF143-CC- SKU:
- CALSAF143-CC
- Availability:
- Ships Same Business Day
- Weight:
- 45.00 LBS
- MFG Part #:
- SAF143-CC
$1,238.00Qty in Cart: 0Quantity:Price:$1,238.00Subtotal:
