1972 Olds Cutlass 442 & W30 Quadrajet Carburetor 7042251 on 2040-parts.com

You are bidding on a Rochester quadrajet carburetor number 7042251. This is an original carb for 1972 Oldsmobile 455 engines with automatic transmissions including W30. It will also fit 1972 455's with manual transmissions. I have over 40 years experience rebuilding carburetors and have done thousands. This carb has just been restored and is ready to install. The rebuilding extras include NEW bronze bushings installed in base. ALL rebuilt quadrajets must have this done. The bases are aluminum and the shaft bores wear and cause poor idle and vacuum leaks. All NEW primary throttle plates are installed. They are also aluminum and wear out. The secondary air valve cams are plastic. This lifts the metering rods when the secondarys open. They wear out or break causing a lean wide open. All NEW air valve cams are used in our rebuilts. New float installed. The main well fuel plugs are MT13 sealed. Forget about JB weld or anything else. They wont hold up to todays fuels and will leak. The accelerator pump cups we use are fluorelastomer and are blue in color. They are the only pump cups that will withstand todays fuel additives. The black pump cups are no good and will swell or shrink. We use all NEW choke pulloffs. The secondary throttle plates are DAG213 sealed for a good quadrajet idle quality. The top and body are chemically color bond 420 dichromated. The aluminum base is restored with a two part cleaning process that brings the aluminum back to the original finish. No silver paint or wire buffing is used. The bottom of base is then machined flat to prevent any potential warpage. The screws and linkage are yellow zinc plated. No rusty parts here. Carbs are tested on our own machine that has a pressure gauge and fuel meter. This assures no leaks and a good pump stream for the accelerator. A mounting gasket and an air cleaner gasket are included. Shipping in the 48 United States only. I will ship to Canada at the actual shipping cost and will not be responsible for shipping damages to Canada. I will NOT ship a carb in a flat rate postal box! They are too small and carb will get damaged. We pack all our carbs with care. Shipping is $20.00.