These K&N tapered injection filters are designed from late-style Hilborn "tapered" Models R, Q, or P, with siamese stacks. Oval aluminum top plate measures 9" x 5-1/2". Total height is 6-3/4".
Available individually for Chevy.
R Style: 2-1/8" ID flange, 2-1/16" injector bore
Q Style: 2-1/4" ID flange, 2-3/16" injector bore
P Style: 2-1/2" ID flange, 2-7/16" injector bore