Ford SB 289 302 351 Windsor Head Bolt Bushing Kits 1/2 O.D. x 7/16 I.D If it has to seal

If it has to seal right the first time Speedmaster has what you need

Compatible with Gas

Complete kit with Multi-Layer Steel (MLS) Head Gaskets

Speedmaster Fabricated Aluminum Valve Covers are made form high grade aluminum and include billet rails which provides an excellent seal and strength to any performance engine

Ford SB 289 302 351 Windsor Head Bolt Bushing Kits 1/2 O.D. x 7/16 I.D If it has to sealThese 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.