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 PCE head bolt bushing kits allow you to use stock or aftermarket head bolts with PCE or other aftermarket cylinder heads. They take the place of your head bolt washers and are hardened and chamfered. Quantity -+ Add to Cart Details Brand: PCE Part Number: PCE277.1001 Part Type: Cylinder Head Bushing Kits Washer Material: Steel Washer Finish: Black zinc Washer Out... DetailsBackDetailsBrand:PCEPart Number:PCE277.1001Part Type:Cylinder Head Bushing KitsWasher Material:SteelWasher Finish:Black zinc Washer Outside Diameter (in):0.500 in.Washer Inside Diameter (in):0.438 in.Quantity:Sold as a set of 20.See MoreSee Less