Offenhauser 6040 Turbo Thrust I-R Adapters

Description

Offenhauser 6040 I-R Adapter- fits Reg. holley Carb On to 5914, 5921, 5931, 5935, 5940, and 6082 Turbo-Thrust Manifold Bases.

Take one Offenhauser Turbo Thrust Power Port manifold base and the new individual runner (I-R) adapters and you’ve got the most advanced competition intake system on the market! These precision machined aluminum adapters bolt to the base of the Turbo Thrust manifold and convert it into a genuine I-R manifold. The carb flanges will accept all Holley and Carter 4 barrel performance carburetors. Dual Holley 4500 carbs can be used with Offenhauser #5925 adapters. Offenhauser also offers special linkage kits for this setup. The Turbo Thrust manifold bases are available for all popular V-8’s including Ford Boss 302, 351, Cleveland and 429. The I-R Adapters will bolt on in minutes to any Turbo Thrust base without modifications. Gaskets and studs are included.

NOTE: This set will require Carburetor and Linkage Modifications and should only be used for all out competition racing. Not designed for street use. Adapters are 2″ in height.