Ford SB 289 302 351 Windsor Nostalgic Finned Aluminum Valve Covers Tall w/o Hole The main difference is that

The main difference is that there is an open area under the plenum chamber

voltage-insulating material

They feature an exclusive

and outstanding performance for muscle car

designed to be used with aftermarket intakes only

Ford SB 289 302 351 Windsor Nostalgic Finned Aluminum Valve Covers Tall w/o Hole The main difference is thatDo you want to finish off your engine in style? Try a set of these Speedmaster finned aluminum valve covers. They are manufactured from cast aluminum and have a polished finish. Speedmaster finned aluminum valve covers feature a classic raised, finned design that adds a unique look to your engine. If you don't want any breather holes drilled, no problem they are offered with breather holes or without any holes. Speedmaster finned aluminum valve covers