Edelbrock part #2191 Performer 440 intake manifold is designed for street 413-426-440 c.i.d. Chrysler V8's that measure 8.75" across block. Will not fit 1962-64 Max Wedge heads. Edelbrock's Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle response from off-idle through 5500rpm. This Performer intake manifold is ideal for passenger cars, trucks, 4x4s, tow vehicles and RVs.