GM 4-71 6X2 TOP MANIFOLD Third Gen Automotive Carbs are spaced 4

Carbs are spaced 4

reverse engineering

-1 5/8"  (closest fit to stock port)

originally derived from Detroit Diesel applications and quickly adopted for its durability

450 overall thickness

GM 4-71 6X2 TOP MANIFOLD Third Gen Automotive Carbs are spaced 4Here is our six carb blower top manifold, engineered to mount six Stromberg 97 or Holley 94 two barrel carburetors atop a GM 4 71 supercharger. If theres a more iconic look in traditional hot rodding than a GMC 4 71 topped with a multi carb setup, its hard to findand this is the full expression of it. Our six carb blower top manifold is built to carry six deuces in perfect formation. The GM 4 71 supercharger has remained a cornerstone of hot rod