C-26 DUAL-QUAD (1500-5500 RPM) For 1955-86 262-400 c.i.d. S/B Chevys, this dual-quad has a low profile for hood clearance on most vehicles. Air-conditioning bosses and front oil filler tube boss included. Stock alternator brackets do not fit. C-26 Dual- Quad intake manifold #5426 is designed for 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. Carb center to carb center: 6-7/16". Accepts oil fill tube and breather #4803. Use with Performer-Plus cam #2103 for low-end torque or Torker-Plus cam/kit #5002 for top-end power. Available with satin, polished or EnduraShine finish. Carburetor Recommendations: Edelbrock Thunder Series AVS #1803 and #1804, 500 cfm. Installation Notes: #5425: Recommended intake gasket: Edelbrock #7201. Manifold height: A-2.95", B-3.55"; Carb pad height: 3.25". Port exit dimensions: 1.18" x 1.90". H.E.I. will fit.
WarrantyInstallation InstructionsInstallation Instructions
