Wilwood 1" Upgrade Master Cylinder For Datsun Nissan 240z, 260z, 280z, 510, 620, 280zx, roadster

-This Wilwood 1" unit is a good option for master cylinder upgrade for the S30 z car, 510 and 620, 280zxIt requires 3 small modifications: 1. Drill out bolt holes one size larger. 2. Reuse your stock threaded hard line outlet fittings from your stock master cylinder 1973-1983 Z car (since stock Wilwood fittings are standard thread). 3. remove drum brake constant pressure valves from front and rear hard line outlets of the wilwood M/C.280zx owner:this master cylinder will only work on a 1979-1981 280zx brake booster with vertical mounting holes!Note: bleeder nipples can be moved to either side of the master cylinder body.