North Central Speed Shop - Clifton, Texas
59-66 401 425 3x2 manifold
New design for the 59-66 401 and 425 Buick (nailhead) engines. This manifold is designed with matched port casting and consistent runner volumes.
Using the same plenum design as our 2x4 manifold and keeping the profile to a minimum; this manifold delivers outstanding performance and traditional good looks. Can be ordered in 3 or 4 bolt patterns. (when using 3 bolt carbs; careful gasket placement is necessary to avoid vacuum leaks.) This manifold has a true 1.50 venturi for maximum flow. Works best with Rochester 2jet carbs or Barry Grant carburetors. If you really want your nailhead to peform; This is the manifold to do the job.