🔥 Wilwood 260-8556-BK Master Cylinder: High Performance Braking Solution Review

Very well made, the black finish is great. It matches the satin black of my racing CVF alternator and power steering pump. Everything you need for installation and pumping is included in the kit. There was also a metering valve and it made it easy to install my custom rig on my JEEP Wrangler. Technical support was also excellent.

Don't expect a direct OEM block replacement. This only applies to custom disc/disc brake systems. The information listed on Revain shows a 1.25 inch hole diameter. That is not right. The hole size of this device is only 1.125. I thought it would do for my old truck but I was wrong. Now I have a master cylinder, an adjustable proportional valve and a residual pressure valve that I can't use. The master cylinder itself isn't to blame, but Wilwood tech support could use some tweaking.

A brake technician and I spent a day bleeding the brakes on a '71 Ford Bronco that was rebuilt to new Wilwood front discs with a Wilwood master cylinder and proportional valve. We just couldn't get the flow to the rear brakes. After a long call to Wilwood tech support, they offered to bleed the master cylinder again, but with the nose down 45 degrees. They also said to hit it hard with a rubber mallet. We've never had to bleed a cylinder at such a ridiculous angle. This took a long time and we…