Edelbrock Performer 400 Intake Manifold is Designed for Ford 351/400 Modified Engines, 1971-82 400 c.i.d. w/ 2V Cleveland Heads & 1975-82 351-M V8's. Will not fit 1974 & earlier 351-C V8s. Accepts 4150-Style Square-Bore Carb. Non-EGR

Edelbrock part #2171 Performer 351M/400M intake manifold is designed for 400 c.i.d. Ford V8's produced from 1971 to 1982 with 2V Cleveland heads and 351M V8's produced from 1975 to 1982. Will not fit 1974 and earlier 351C V8's. Valley width measures 8-17/32". 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.

This intake was removed from a 1974 Mercury Cougar with a 400 engine.  It looks like it was used for a very short time. The underside of the intake is spotless.  The intake mating surfaces look great with no pitting or corrosion.  The bolt holes for the carburetor also look good. I did notice one bolt hole with a small nick at the very top. See the photos. I purchased the special 5/16 x 18 thread studs and tested them in the bolt holes and they screwed in easily.

After reading the information about this intake and learning that it came with a required plate for mounting the carb, I purchased one and will include it as well as the special studs.

See my other auction for the Accel distributor removed from this same car. It looks like it also has seen very little use.