Ford SB 289 302 351 Windsor Head Bolt Bushing Kits 1/2 O.D. x 7/16 I.D
 
These head bolt bushing kits allow you to use stock or aftermarket 289/302 windsor head bolts with 351 windsor or other aftermarket cylinder heads that utilise 1/2 head bolt holes. They take the place of your head bolt washers and are hardened and chamfered.
 
1 set = 20pcs