Orders may take longer than usual to process due to manufacturers having issues receiving and shipping parts. If you need to know if a part is in stock, please call prior to placing your order. We are doing everything within our control to ship orders as soon as possible.
This dual-plane was designed for 283-400 ci small-block Chevrolet enginesusing the new vortec cylinder heads P/N 12464298 or 12558060. This high rise manifold was designed for maximum horsepower and a broad torque curve to give you great performance. This manifold accepts square bore carburetor and includes extremally plumbed hot water crossover passage. Vortec heads were releasedon 1996 RPO L31 truck engines. This manifold only has four bolts attaching it to the cylinder head instead of six like all earlier models. Check for proper to carburetor clearance, especially on corvettes. Use manifold gasket P/N 12529094 and attchment bolts P/N 24504713.
Write the First Review!