Engine Crankshafts

CALLIES ULTRA BOOST 3.500 / 400 / 2.100 BBC POST

Part Number: CPI-SMG-21-UB

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Estimated Ship Date: May 4, 2026 if ordered today

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CALLIES SBC MAGNUM 3.750/350/1.888 BBC POST

Part Number: CPI-SMJ-19A-MG

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Estimated Ship Date: May 4, 2026 if ordered today

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CALLIES SBC FORGED ULTRA DIRT CRANK 3.750/350/1.888 BBC POST

Part Number: CPI-SMJ-19A-UD

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Estimated Ship Date: May 4, 2026 if ordered today

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CALLIES ULTRA BOOST 4.750 / 400 / 2.100 BBC POST

Part Number: CPI-SMS-21-UB

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Estimated Ship Date: May 4, 2026 if ordered today

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CRANKSHAFT-4340 BBC 454 4.625

Part Number: MAN-190400

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Estimated Ship Date: Mar 30, 2026 if ordered today

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4340 CRANK CHEV 350 2PC 3.750" BBC SNOUT

Part Number: ESP-4350375057B1

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Crankshaft, Magnum, 2-piece Rear Main Seal Style, Internal Engine Balance, Forged 4340 Steel, 4.500 in. Stroke, Standard Snout, Chevrolet, 7.4L, Each

Part Number: CPI-BBQ42B-MG

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.625 in. Stroke, 2.200 in. Pin, Chevrolet, Each

Part Number: CPI-BBR425-CS

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Estimated Ship Date: May 12, 2026 if ordered today

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Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 4.375 in. Stroke, 2.200 in. Pin, Chevy, 454

Part Number: CPI-BBB425-CS

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Estimated Ship Date: Apr 22, 2026 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 454, Each

Part Number: ESP-445640046135

5.0 out of 5 stars ( 2 )

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, Chevy, 7.4L, Each

Part Number: MAN-190280

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 20, 2026 if ordered today

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Crankshaft, 1-Piece Seal, External Balance, Forged 4340 Steel, 4.250 in. Stroke, 6.135 Rod, Chevy, 454, Each

Part Number: SCA-445420L

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Crankshaft, 1-piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, 2.200 in. Pin, Chevy, 454

Part Number: CPI-IBP425-CS

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 22, 2026 if ordered today

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Crankshaft, Magnum, 1-Piece Seal, Forged 4340 Steel, 4.250 in. Stroke, 6.385 in Rod, 2.200 Pin, Internal Balance, Chevy, Big Block, GenV, GenVI, Each

Part Number: CPI-IBP42B-MG

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4340 Forged Superlight

Part Number: SCA-445405C-3

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Estimated Ship Date: Apr 22, 2026 if ordered today

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Crankshaft, Forged 4340, Internal Balance, 4.750 in. Stroke, 6.700 Rod, Chevy Big Block, 8.1L, Each

Part Number: SCA-481030

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, 6.535 Rod, Chevy, 454, Each

Part Number: SCA-445430

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Chevy, Big Block, Tall Deck, Each

Part Number: ESP-445445006535

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Billet Steel, 4.250 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0013

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Billet Steel, 4.500 in. Stroke, Chevrolet, Big Block, Each

Part Number: BRO-S0017

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Drive Hub, 1.187 in. Thick, Mandrel, 3.500 in. Length, Billet Aluminum, Natural, Chevy, Big Block, Each

Part Number: JRP-DH8101WCBB

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Crankshaft, 1-Piece Seal, Internal Balance, Cast Steel, 4.250 in. Stroke, Chevy, 454, Each

Part Number: SCA-945425L

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Estimated Ship Date: Apr 14, 2026 if ordered today

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CRANK-4340 FORGE 4.250 STROKE

Part Number: MAN-190290

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Crankshaft, 1-Piece Seal, External Balance, Forged 1053 Steel, 4.00 in. Stroke, Chevy, 502, Each

Part Number: NAL-10183723

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Crankshaft, 1-Piece Seal, External Balance, Forged 1053 Steel, 4.000 in. Stroke, Chevy, 7.4L, Each

Part Number: NAL-14096983

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Estimated Ship Date: Jun 1, 2026 if ordered today

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