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The ATI crank hub for LS-series and GM Y-body applications is a steel hub specified for LS1/2/3/6, Y-body G8 L76, LSA and LT4 variants. It features a three-bolt pattern and .391" through-holes sized for the A/C pulley, providing a direct replacement hub for compatible engines where that mounting and hole pattern is required.
ATI Crank Hub - Steel - LS1/2/3/6 Y Body G8 L76 - LSA & LT4 - 3-Bolt -.391 Thru Holes for A/C Pulley
