For those Nova fans that are looking for a brand new master cylinder for their 1967 Nova resto project, you came to the right place! We have a boat load of NOS replacement Wagner and Eis Master cylinders. This particular hard to find single bolt master arrived on the early 67 Nova's. Known as the "single bolt" master, this is the first design master found on the early 67 Chevy II's & Novas. For  standard drum or power drum brakes. This one is a little more rare. Keep your early production Nova correct with the correct master. Second design master cylinders for the 67' Nova came with the spring bail cover.   Covers early 67' only. Our price is tough to beat unless its made in China......  USA Made!