Ford SB 289 302 351 Windsor Head Bolt Bushing Kits 1/2 O.D. x 7/16 I.D Pinit $31.20 SKU: PCE277.1001 These Speedmaster head bolt bushing kits allow you to use stock or aftermarket head bolts with Speedmaster or other aftermarket cylinder heads. They take the place of your head bolt washers and are hardened and chamfered. Out of Stock Quantity -+ Details Brand:SpeedmasterPart Number:PCE277.1001Part Type:Cylinder Head Bushing KitWasher Material:SteelWasher Finish:Black zincWasher Outside Diameter (in):0... DetailsBackDetailsBrand:SpeedmasterPart Number:PCE277.1001Part Type:Cylinder Head Bushing KitWasher Material:SteelWasher Finish:Black zincWasher Outside Diameter (in):0.500 in.Washer Inside Diameter (in):0.438 in.Quantity:Sold as a set of 20.See MoreSee Less