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Welcome to Source One Auto Parts!

Welcome to Source One Auto Parts!

Crankshaft, Camshaft & Related

Browse New OEM crankshaft and camshaft assemblies and components for GM Gen V LT engines. Our factory-original internal engine parts are sourced from GM surplus — machined to factory tolerances and ready for installation.

The valvetrain and bottom end of a Gen V LT engine work as an integrated system — crankshaft stroke, camshaft timing, and piston compression height are all engineered together. OEM rotating assembly components maintain these relationships, ensuring proper compression ratio, valve-to-piston clearance, and combustion efficiency.

Engine build work should be performed by a qualified engine builder with proper measuring equipment. Verify all part numbers against your engine's RPO code and casting numbers before ordering.

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