400 401 425 Buick Nailhead Aluminum Custom Riser Intake Manifold Spacer 1" Tall

These are 1" tall machined 6061 aluminum risers for the Buick Nailhead engine that will put that intake right up in your face. They have a brushed finish but could easily be polished to a mirror finish. This riser fits the 1957-66 Buick 364-400-401-425 Nailhead V8 engines .