Engine Intake ManifoldEdelbrock part #7116 Performer RPM Vortec intake manifold is Based on the powerful Edelbrock #7101, this single four barrel intake is designed for the street rod, marine and engine swap market utilizing 262 400 c. i. d. Chevy V8's with 1996 and later Vortec (L31) cast iron or Edelbrock E Tec aluminum heads. An external water bypass boss is machined into the front of the water crossover for use on 1996 and later Vortec production engines. Manifold