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The ATI steel crank hub is a .005 undersize hub intended for Chevy small‑block and 90° V6 applications and also notes compatibility with certain Pontiac 4‑cylinder snout profiles. As an undersize steel hub, it addresses bores requiring the .005 reduction. Use this hub when your application calls for a .005 undersize crank hub on compatible Chevy SB and 90° V6 installations.
ATI Crank Hub - Steel - .005 Undersize Chevy SB/90 V-6 Pont 4-Cyl
