Aussiespeed short runner intake manifold plenum and runners only.
The AS0199 manifold has a runner length including the plenum from the cylinder head flange to the widest point of 30cm it has a flat rectangular plenum box and gives you the basis to built a custom intake manifold for your Slant 6 engine.
This manifold is sold minus a removable top. This versatile manifold will accept 3 styles of carburettor top plates that will bolt a 2 barrel, 4 barrel in standard front to back fuel bowl position or sideways east west configuration.
This manifold will not accept a carburettor directly on the top, it is designed to have a base plate that you design to bolt on to the existing mounting flange or you can use one that we produce.