40 IDF Carburettor Reverse Flanges

With the CSP Products carburettor reverse flanges it is possible to mount 40, 44 and 48 Weber IDF, as well as 48 IDA and Dellorto DRLA dual carbs on the manifolds rotated by 180 degrees.

This comes in handy on Type-1 and Type-4 engines equipped with a Porsche style fan shroud, since turning the carbs make it easier to adjust and tune them.

Due to their low height of only nine millimeters the aluminuim CNC-machined CSP Products reverse flanges are perfectly suited for the VW Beetle engine bay, but also for Type-2 Bus and Karmann Ghia (Type-14).

A special highlight are the integrated O-rings made out of FKM material, sealing perfectly towards the intake manifold over the entire engine lifespan.

Of course, they are contour-milled on the carb side for a perfect fit and feature countersunk head screws for attachment to the intake manifold.

We offer three different sizes (40, 44 and 48 mm) to match the corresponding carburetors.

Each set contains two flanges, two O-rings made out of FKM material and four M8 countersunk hexagon socket screws.

Made in Germany!

We recommend the reverse flanges in conjunction with manifolds made in Germany and our CSP Products bellcrank linkages for Porsche style fan shrouds.