Billet intake manifold is designed to fit the Mikuni 38mm Super BN carburetor to the Honda GX340, GX390, 460cc and Predator 420cc big block single cylinder engines without any adapters.Â
Use our carburetor mounting flanges to adapt other carburetors to our intake manifold.Â
Our intake also has the throttle bracket designed into the intake so no researching or fabricating a throttle bracket is needed! Our intake has an 1/8" npt port on top for a fuel pump pulse port. The throttle bracket is machined to an 1/8" npt also.Â
Choose the intake manifold thickness that fits your ride the best. One intake manifold is 2 3/8" tall and our short version is 3/4" thick/tall. Â