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 F-43 Forged Crank - 3.480 Stroke 4-350-3480-5700-18LW
SCAT ENTERPRISES
$1,285.99If you're building or rebuilding a Small Block Chevy engine for serious performance, your crankshaft is the foundation of reliability and power delivery. The SBC F-43 Forged Crank delivers the stroke...SCA4-350-3480-5700-18LW- SKU:
- SCA4-350-3480-5700-18LW
- Availability:
- Ships Same Business Day
- Weight:
- 44.55 LBS
- MFG Part #:
- 4-350-3480-5700-18LW
$1,285.99Qty in Cart: 0Quantity:Price:$1,285.99Subtotal: -
SBC 4340 Forged Crank - 3.480 Stroke 4-350-3480-5700
SCAT ENTERPRISES
$944.99A forged 4340 crankshaft is essential for any serious Small Block Chevy build pushing toward high RPM and sustained power. This 3.480-stroke unit provides the internal balance and material strength...SCA4-350-3480-5700- SKU:
- SCA4-350-3480-5700
- Availability:
- Ships Same Business Day
- Weight:
- 55.30 LBS
- MFG Part #:
- 4-350-3480-5700
$944.99 -
SBF 4340 Forged Crank - 3.400 Stroke 4-302-3400-54-2123-I
SCAT ENTERPRISES
$675.99A forged steel crankshaft is the foundation of any reliable, high-revving engine build. The SBF 4340 Forged Crank delivers the strength and precision needed for sustained performance in Small Block...SCA4-302-3400-54-2123-I- SKU:
- SCA4-302-3400-54-2123-I
- Availability:
- Ships Same Business Day
- Weight:
- 52.55 LBS
- MFG Part #:
- 4-302-3400-54-2123-I
$675.99 -
SBF 4340 Forged Crank - 3.400 Stroke 4-302-3400-5400-2123
SCAT ENTERPRISES
$908.99A quality forged crankshaft is the foundation of any reliable high-performance Small Block Ford engine. This 4340 forged crank delivers the strength and precision needed to handle aggressive power...SCA4-302-3400-5400-2123- SKU:
- SCA4-302-3400-5400-2123
- Availability:
- Ships Same Business Day
- Weight:
- 51.30 LBS
- MFG Part #:
- 4-302-3400-5400-2123
$908.99 -
SBF 4340 Forged Crank - 3.250 Stroke 4-302-3250-5400-2123
SCAT ENTERPRISES
$923.99A forged 4340 crankshaft is the foundation of a reliable, high-RPM engine build. Whether you're assembling a street performance SBF or a track-focused small block, this externally balanced crank...SCA4-302-3250-5400-2123- SKU:
- SCA4-302-3250-5400-2123
- Availability:
- Ships Same Business Day
- Weight:
- 50.30 LBS
- MFG Part #:
- 4-302-3250-5400-2123
$923.99 -
Balance Plate New Chevy RM-530
QUICK TIME
$43.32A properly balanced crankshaft is fundamental to Small Block Chevy reliability and longevity. The RM-530 Balance Plate ensures precise weight distribution, reducing vibration and stress on your...QTMRM-530- SKU:
- QTMRM-530
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- RM-530
$43.32 -
Peterson Fluid Key for Pump Pulleys 3/16 x 1.500 05-0399
PETERSON FLUID
$6.99A properly secured pump pulley is critical to maintaining reliable boost delivery and preventing catastrophic engine damage from a slipped or separated component. This Peterson key stock provides the...PTR05-0399- SKU:
- PTR05-0399
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 05-0399
$6.99 -
Mr. Gasket 4 Deg Short (3/4in) Crank key 988G
MR. GASKET
$33.31A properly functioning crankshaft key is critical for maintaining timing accuracy and preventing harmonic imbalances that can lead to catastrophic engine failure. This Mr. Gasket 4-degree offset key...MRG988G- SKU:
- MRG988G
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 988G
$33.31Qty in Cart: 0Quantity:Price:$33.31Subtotal: -
Mr. Gasket 2 Deg Short (3/4in) Crank Key 987G
MR. GASKET
$24.06A crankshaft key is a critical component that locks your harmonic balancer and pulley system to the crank, preventing slippage under high RPM and boost conditions. Mr. Gasket's 2-degree offset design...MRG987G- SKU:
- MRG987G
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 987G
$24.06 -
Mr. Gasket Short (3/4in) Crank Key 984G
MR. GASKET
$33.27A properly installed crankshaft key is fundamental to reliable engine operation—it locks your crankshaft pulley in place and prevents timing drift under high load conditions. The Mr. Gasket 984G...MRG984G- SKU:
- MRG984G
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 984G
$33.27 -
Mr. Gasket Long (1-3/8in) Crank Key 983G
MR. GASKET
$33.31A properly secured crankshaft key is critical for reliable engine performance, especially in high-RPM applications where harmonic forces can cause pulley slippage and ignition timing issues. The Mr...MRG983G- SKU:
- MRG983G
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 983G
$33.31 -
SBC T/S-3 4340 Forged Crank 3.750 Stroke H403756012T
HOWARDS RACING COMPONENTS
$933.99Building a high-displacement small block or pushing your existing SBC to the limit requires a crankshaft engineered for sustained power and reliability. This 4340 forged crank delivers the stroke you...HRCH403756012T- SKU:
- HRCH403756012T
- Availability:
- Ships Same Business Day
- Weight:
- 25.00 LBS
- MFG Part #:
- H403756012T
$933.99 -
Chevrolet Performance SBC ZZ4 Crankshaft 3.480 Stroke 1pc Rear Main 12670965
CHEVROLET PERFORMANCE
$1,699.99If you're building or rebuilding a Small Block Chevy engine that demands reliability and consistent performance, a quality crankshaft is non-negotiable. The Chevrolet Performance SBC ZZ4 crankshaft...GMP12670965- SKU:
- GMP12670965
- Availability:
- Ships Same Business Day
- Weight:
- 65.00 LBS
- MFG Part #:
- 12670965
$1,699.99Qty in Cart: 0Quantity:Price:$1,699.99Subtotal: -
Eagle SBC 4340 Forged Crank - 3.750 Stroke 440037505700
EAGLE
$892.99A quality crankshaft is the backbone of any high-revving Small Block Chevy build. The Eagle SBC 4340 Forged Crank delivers the strength and precision needed to handle sustained high RPM loads without...EAG440037505700- SKU:
- EAG440037505700
- Availability:
- Ships Same Business Day
- Weight:
- 58.70 LBS
- MFG Part #:
- CRS440037505700
$892.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke 440034805700
EAGLE
$1,050.99A forged crankshaft is the backbone of any high-performance small block Chevy engine, and the Eagle SBC 4340 delivers the strength and reliability required for sustained boost, extended RPM limits,...EAG440034805700- SKU:
- EAG440034805700
- Availability:
- Ships Same Business Day
- Weight:
- 56.80 LBS
- MFG Part #:
- CRS440034805700
$1,050.99 -
Eagle SBC 4340 Forged Crank - 3.480 Stroke 435334805700
EAGLE
$939.99A forged crankshaft is the foundation of any reliable, high-RPM Small Block Chevy build. The Eagle SBC 4340 combines superior material strength with precision manufacturing to handle sustained power...EAG435334805700- SKU:
- EAG435334805700
- Availability:
- Ships Same Business Day
- Weight:
- 56.00 LBS
- MFG Part #:
- CRS435334805700
$939.99 -
Eagle SBF 4340 Forged Crank - 4.000 Stroke 435240006200
EAGLE
$1,075.99A quality crankshaft is the foundation of any reliable high-performance engine build. The Eagle SBF 4340 Forged Crank delivers the stroke geometry and material strength you need to support higher...EAG435240006200- SKU:
- EAG435240006200
- Availability:
- Ships Same Business Day
- Weight:
- 62.25 LBS
- MFG Part #:
- CRS435240006200
$1,075.99 -
Eagle SBF 4340 Forged Crank - 4.000 Stroke 435140006200
EAGLE
$851.99A forged 4340 crankshaft is the foundation of any serious Small Block Ford build that demands reliability under sustained high RPM and boost. This Eagle crank delivers the strength to handle forced...EAG435140006200- SKU:
- EAG435140006200
- Availability:
- Ships Same Business Day
- Weight:
- 63.65 LBS
- MFG Part #:
- CRS435140006200
$851.99 -
Eagle SBC 4340 Forged Crank - 4.000 Stroke 435040006000
EAGLE
$981.99A stroker crank is the foundation of any serious Small Block Chevy build—and the Eagle SBC 4340 delivers the displacement and durability you need for increased torque and horsepower. The 4.000-inch...EAG435040006000- SKU:
- EAG435040006000
- Availability:
- Ships Same Business Day
- Weight:
- 56.65 LBS
- MFG Part #:
- CRS435040006000
$981.99 -
Eagle SBC 4340 Forged Crank - 3.750 Stroke - L/W 4350375057LA
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 you need to push your power levels without compromise...EAG4350375057LA- SKU:
- EAG4350375057LA
- Availability:
- Ships Same Business Day
- Weight:
- 53.00 LBS
- MFG Part #:
- CRS4350375057LA
$955.99Qty in Cart: 0Quantity:Price:$955.99Subtotal:
