O.S. 23751020 Crankcase Speed 21 V-Spec OSMG4231

This is the Crankcase for the OS Speed .21VZ-B V-Spec w/21H Slide Carb #13893.

Features

• O.S. 23751020 Crankcase Speed 21 V-Spec OSMG4231

• Aluminum construction

• Black powder coat

• Finned for cooling

Contents

• One Crankcase for the OS .21VZ-B V-Spec

Requirements

• Installing all OS .21VZ-B V-Spec engine components into and on crankcase