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Dart Machinery, LTD. stands behind each product we manufacture 100%. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible.
BBC Fully Counterweighted Crank Side

BBC Crankshafts

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Product Description

Dart 4340 forged BBC fully counterweighted crankshaft: 4.250″, 4.375″, 4.500″ and 4.750″ (1 or 2 piece).

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• 8 counterweights.

• Precision machined radius.

• Thicker flanges.

• Highly polished journals.

• 1 or 2 piece rear seal available.

• Dual keyway provisions (2 piece seal only).

Big Block Chevy CRANKSHAFT

9-45442506385 – 4.250” Stroke 6.385” 2 Piece

9-45443756535 – 4.375” Stroke 6.535” 2 Piece

9-45445006700 – 4.500” Stroke 6.700” 2 Piece

9-45447506700 – 4.750” Stroke 6.700” 2 Piece

9-45645006700 – 4.500” Stroke 6.700” 1 Piece

9-45647506700 – 4.750” Stroke 6.700” 1 Piece

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