• Retro style carburetor, designed by US mechanic.Manual choke carburetor.High Quality carburetor made especially for Chevrolet 6 cyl engines to replace original Rochester model B/BC 1bbl factory carburetors.
• Top mounting for the air cleaner is 2 1/4" diameter.Replacement 1 Barrel Carburetor for Rochester B - N228
• Modified type carburetors are suitable for ordering by mechanics who are very familiar with this carburetors.
• Zenith 28/228 downdraft carburetors.Fits most 1937-1967 4cyl and 6cyl Chevy engines 192" up thru 260".Weighs about 5 pounds
• Please note that Main Adjusting Needle Assembly is not included

Vintage Rochester B/BC Model 1 barrel carburetor from 2024
Nominal CFM: 200-215. Engines up to 270ci
Overall height = 6 1/2"
Bore =1.507"
Elongated bolt holes fits manifolds with 2 11/16" and 2 15/16" ON CENTER bolt pattern
Venturi is 30mm. Flows fine for all single carb applications up to 270ci displacement.
Top mounting for the air cleaner is 2 1/4" diameter.
Inlet thread: 1/8th - 27 NPT