1974 Engines & Components

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: Jan 2, 2026 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 4.500 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445430C

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Crankshaft, Standard Weight, Forged 4340 Steel, 4.750 in. Stroke, Internal Balance, Chevy, 454, Each

Part Number: SCA-445440C

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Forged 4340 Standard Weight

Part Number: SCA-4351C62

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Crankshaft, Internal Balance, Forged 4340 Steel, 4 in. Stroke, Ford, 351W, Each

Part Number: SCA-4351W50

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.500 in. Stroke, Chevy, 350, Each

Part Number: SCA-435020-20

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Cylinder Head, Merlin, Cast Iron, Bare, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 269cc Intake Runner, Chevy, Big Block, Each

Part Number: WRL-030040-2

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Head, Merlin, Cast Iron, Assembled, 119cc Chamber, 345cc Intake, Exhaust Port Is Raised 0.600 in., Rectangular Intake Port, Chevy, Big Block

Part Number: WRL-030630-1

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 3.580 in. Stroke, Chrysler, 360, Each

Part Number: ESP-436035806123

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Heads, Aluminum, Bare, 63cc Chamber, 171cc Intake Runner, Chrysler, Dodge, Plymouth, Small Block, Pair

Part Number: PMX-9361

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Aluminum, Bare, 65cc Chamber, 171cc Intake Runner, Chrysler, Dodge, Plymouth, Small Block, Pair

Part Number: PMX-93615

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Freedom Series, Assembled, Aluminum, Natural, 64cc Chamber, Chevy, Small Block, Pair

Part Number: PMX-2117

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Freedom Series Small Block Chevy Heads, Assembled, Aluminum, 72cc Chamber, 225cc Intake, Angle Plug, Chevrolet, Small Block, Pair

Part Number: PMX-2118

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Freedom Series Small Block Chevy, Assembled, Aluminum, 64cc Chamber, 225cc Intake Runner, Angle Plugs, Chevy, Small Block, Pair

Part Number: PMX-2120

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Freedom Series Small Block Chevy Heads, Assembled, Aluminum, 72cc Chamber, 225cc Intake, Angle Plug, Chevrolet, Small Block, Pair

Part Number: PMX-2122

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Freedom Series Small Block Chevy Heads, Assembled, Aluminum, 72cc Chamber, 225cc Intake, Straight Plug, Chevrolet, Small Block, Pair

Part Number: PMX-2123

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Aluminum, Assembled, 72cc Chamber, 185cc Intake Runner, Angle Plug, Chevy, Small Block, Pair

Part Number: PMX-2170

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Cylinder Heads, Aluminum, Bare, 119cc Chamber, 320cc Intake Runner, Chevy, Big Block, Pair

Part Number: PMX-2210

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Estimated Ship Date: Dec 3, 2025 if ordered today

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Pulleys, Sport Track, Serpentine, Standard Ratio, Billet Aluminum, Silver Powdercoated, Chevy, Big Block, Kit

Part Number: MCH-23690-09

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Estimated Ship Date: Dec 8, 2025 if ordered today

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CRANK-4340 FORGE 4.375 STROKE

Part Number: MAN-190250

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Estimated Ship Date: Dec 11, 2025 if ordered today

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Cylinder Head, Freedom, Aluminum, Assembled, 64 cc Chamber, 190 cc Intake Runner, Straight Plug, Chevy, Pair

Part Number: PMX-2181

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 5, 2025 if ordered today

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Crankshaft, 2-Piece Seal, Internal Balance, Forged 4340 Steel, 4.500 in. Stroke, Chrysler, 413, 426, 440, Each

Part Number: ESP-444245007100

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Estimated Ship Date: Dec 1, 2025 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: Dec 1, 2025 if ordered today

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