Simpson Shorty Crew Helmet - White 2010163 it will be necessary to

it will be necessary to check clearance behind the cam sprocket (with the chain on the sprocket) and engine block at the 12 o'clock position

Carb Flange Center-To Center 9-11/16"

Breather Holes

Vacuum Hose

Simpson Shorty Crew Helmet - White 2010163 it will be necessary toShorty helmets for pit crews and track safety personnel. Features: EPS (Expanded Polystyrene) Impact Liner offers superior impact protection 4 way adjustable straps for a fine tuned fit Ear cutouts allow comfortable use of most radio headsets Durable ABS sun visor Top vents allow hot air to escape Sizes range from S XXL Available only in Gloss white Not SFI rated for competition use Not DOT rated for street use Stay safe on the track with Simpson