Chrome 11" Brake Booster & Master Cylinder 1-1/8" Bore & Proportioning

4 Port unit so that you can mount your lines on either side. Master cylinder has a 1-1/8 bore and includes ports on both sides to work with all applications (one 9/16 & one 1/2 per side). This is a new master cylinder not a rebuilt or re-manufactured master cylinder. Aazon.co: IOOA G 1 Bore aster Cylinder Finned Top with Dual 9/16... The cap is attached by 2 small screws. This master cylinder features a beautiful chrome finish with smooth top. ; 9/16 And 1/2 ports on both sides of the master cylinder. 9/16 And 1/2 ports on both sides of the master cylinder. ◆Application:Fits GM applications. Specification: Condition:100% Brand New Colour:Silver Material: Aluminum Finish:Chrome., Fits GM applications. 555-631006 Brake Master Cylinder 631006 Dual Reservoir Brake Master Cylinder is machined from cast aircraft-quality, aluminum into a smooth and stylish unit. We then fully polish each one and finish it with high-luster chrome to provide the finishing touch to any engine compartment Chrome 11" Brake Booster & Master Cylinder 1-1/8" Bore & Proportioning ◆Complete accessories：Plugs are included to block the ports. ◆Installtion:4 Port unit so that you can mount your lines on either side. IMOOA GM 1" Bore Master Cylinder Finned Top with Dual 9/16 Package includes: Plugs are included to block the ports.