Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
CHEVROLET Engines & Components
Crankshaft, 2-piece seal, Internal Balance, Forged 4340 Steel, 3.562 in. Stroke, Custom Order, Chevy, Each
Part Number: CRO-95123
Not Yet Reviewed
Estimated Ship Date: Jul 3, 2026 if ordered today
Estimated Ship Date: Jul 3, 2026 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Custom Order, Chevy, 350, 400
Part Number: CRO-LW95122
Not Yet Reviewed
Estimated Ship Date: Jul 13, 2026 if ordered today
Estimated Ship Date: Jul 13, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.760 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-LW95132
Not Yet Reviewed
Estimated Ship Date: Jul 13, 2026 if ordered today
Estimated Ship Date: Jul 13, 2026 if ordered today
Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.375 in. Stroke, Chevy, Each
Part Number: CRO-95136
Not Yet Reviewed
Estimated Ship Date: Jul 13, 2026 if ordered today
Estimated Ship Date: Jul 13, 2026 if ordered today
Engine Rotating Assembly, 24-Tooth Reluctor Wheel, 4340 Forged Crank, Forged Pistons, I-Beam Rods, Chevrolet, LS Engine, Kit
Part Number: SCA-1-43704BI
Not Yet Reviewed
Engine Rotating Assembly, 58-Tooth Reluctor Wheel, 4340 Forged Crank, Forged Pistons, I-Beam Rods, Chevrolet, LS Engine, Kit
Part Number: SCA-1-43808BI
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4 in. Stroke, Chevy, 454, Each
Part Number: CRO-E95133X4
Not Yet Reviewed
Estimated Ship Date: Jul 16, 2026 if ordered today
Estimated Ship Date: Jul 16, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.000 in. Stroke, Custom Order, Chevy, 350, 400
Part Number: CRO-LW95128
Not Yet Reviewed
Estimated Ship Date: Jul 16, 2026 if ordered today
Estimated Ship Date: Jul 16, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-LW95135
Not Yet Reviewed
Estimated Ship Date: Jul 16, 2026 if ordered today
Estimated Ship Date: Jul 16, 2026 if ordered today
Crankshaft, 2-piece Seal, Internal Balance, Forged 4340 Steel, 3.875 in. Stroke, 2.100 in. Pin, Chevy, 400
Part Number: CPI-SAM21A-MG
Not Yet Reviewed
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-LW95137
Not Yet Reviewed
Estimated Ship Date: Jul 10, 2026 if ordered today
Estimated Ship Date: Jul 10, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.750 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-LW95140
Not Yet Reviewed
Estimated Ship Date: Jul 10, 2026 if ordered today
Estimated Ship Date: Jul 10, 2026 if ordered today
Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.625 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-E95139X4
Not Yet Reviewed
Estimated Ship Date: Jul 10, 2026 if ordered today
Estimated Ship Date: Jul 10, 2026 if ordered today
Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 3.875 in. Stroke, Chevy, Each
Part Number: CRO-95127
Not Yet Reviewed
Estimated Ship Date: Jul 3, 2026 if ordered today
Estimated Ship Date: Jul 3, 2026 if ordered today
Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, Each
Part Number: CRO-95128
Not Yet Reviewed
Estimated Ship Date: Jul 3, 2026 if ordered today
Estimated Ship Date: Jul 3, 2026 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000C
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B2000A
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.125 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-LW95130
Not Yet Reviewed
Estimated Ship Date: Jul 16, 2026 if ordered today
Estimated Ship Date: Jul 16, 2026 if ordered today
Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.250 in. Stroke, Custom Order, Chevy, 454
Part Number: CRO-ML95135
Not Yet Reviewed
Estimated Ship Date: Jul 16, 2026 if ordered today
Estimated Ship Date: Jul 16, 2026 if ordered today
Crankshaft, 2-Piece Seal, External Balance, Forged 4340 Steel, 4.25 in. Stroke, Custom Order, Chevy, 454, Each
Part Number: CRO-E95135X4
Not Yet Reviewed
Estimated Ship Date: Jul 16, 2026 if ordered today
Estimated Ship Date: Jul 16, 2026 if ordered today
