1974 Engines & Components

Crankshaft, Stock Eliminator, 2-Piece, 3.773 in. Stroke, Forged 4340 Steel, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BB1542BSE

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Crankshaft, Stock Eliminator, 2-Piece, 4.011 in. Stroke, Forged 4340 Steel, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BB1642B-SE

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Crankshaft, Magnum, 2-Piece Seal, Forged 4340 Steel, 3.750 in. Stroke, 6.385 in. Rod, 2.100 Pin, Internal Balance, Chevy, Big Block, Each

Part Number: CPI-BBJ43B-MG

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Crankshaft, 2-piece seal, Internal balance, Forged 4340 Steel, 4.000 in. Stroke, Chevy, 454, 2.200 Pin, Each

Part Number: CPI-BBO42B-MG

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Estimated Ship Date: Jan 16, 2026 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 -3cc F

Part Number: MAN-38572RHX

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Estimated Ship Date: Dec 11, 2025 if ordered today

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ROTATING ASSEMBLY KIT-BBC 572 4.250/4.625 -3cc F

Part Number: MAN-38572X

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Estimated Ship Date: Dec 11, 2025 if ordered today

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615H

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Estimated Ship Date: Dec 11, 2025 if ordered today

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615HX

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Estimated Ship Date: Dec 11, 2025 if ordered today

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615HXX

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Estimated Ship Date: Dec 11, 2025 if ordered today

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ROTATING ASSEMBLY KIT-BBC 615 4.625/4.600 -3cc F

Part Number: MAN-38615R

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Estimated Ship Date: Dec 11, 2025 if ordered today

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Pulley Kit, Serpentine, Aluminum, Black Powdercoated, Chevy, Big Block, Electric Water Pump, w/Power Steering, Kit

Part Number: MCH-23115-08

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Engine Rotating Kit, Cast Crank, Forged Pistons, I-Beam Rods, Ford, Cleveland, Kit

Part Number: SCA-194412BE040

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Pulley/Bracket Set, Track, Serpentine, Aluminum, Chrome, Saginaw P/S, Chevy, Big Block, Kit

Part Number: MCH-21255-06

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Pulley Kit, Revolver Track, Serpentine, Aluminum, Chrome, Performance Ratio, Chevy, Big Block, Kit

Part Number: MCH-21265-06

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Pulley Kit, Revolver Track, Serpentine, Aluminum, Chrome, Standard Ratio, Chevy, Big Block, Kit

Part Number: MCH-21290-06

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Pulleys, Pro-Track, Serpentine, Performance Ratio, Billet Aluminum, Clear Powdercoated, AMC, V8, 4 Bolt Balancer, 1970 and Newer, Kit

Part Number: MCH-55150

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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Pulleys, Pro-Track, Serpentine, Performance Ratio, Billet Aluminum, Chrome, AMC, V8, 4 Bolt Balancer, 1970 and Newer, Kit

Part Number: MCH-55150-06

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Pulleys, Pro-Track, Serpentine, Billet Aluminum, Black Onyx Main X Bracket, Clear Powdercoated Pulleys, AMC, V8, 4 Bolt Balancer, 1970 and Newer, Kit

Part Number: MCH-55150-07

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Pulleys, Pro-Track, Serpentine, Performance Ratio, Billet Aluminum, Black Powdercoated, AMC, V8, 4 Bolt Balancer, 1970 and Newer, Kit

Part Number: MCH-55150-08

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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Cylinder Heads, Street Porting, Aluminum, Assembled, 58cc Chamber, 185cc Intake, Ford, Small Block, Pair

Part Number: AFR-1492

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Dec 8, 2025 if ordered today

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Cylinder Heads, CNC Comp Porting, Aluminum, Assembled, 121cc Chamber, 325cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2101-1

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Cylinder Heads, Track 1, Aluminum, Assembled, 67cc Chamber, 221cc Intake Runner, Chevrolet, Small Block, Pair

Part Number: BRO-1001001A

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Estimated Ship Date: Dec 16, 2025 if ordered today

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Pulley Kit, Serpentine, Chevy Small Block, Aluminum, AC, Power Steering-Aluminum Reservoir, Polished, 2 boxes

Part Number: EMS-MS107-55BP

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 18, 2025 if ordered today

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KIT-SBC 383 3.750/4.040

Part Number: MAN-290140

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Estimated Ship Date: Nov 10, 2025 if ordered today

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KIT-SBC 434 4.000/4.125

Part Number: MAN-290200

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Estimated Ship Date: Nov 10, 2025 if ordered today

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