GM Gen IV LS3 Bare Aluminium Cylinder Heads 260cc/70cc - Chevy Holden HSV Holden V8 GM style brake proportioning valve

GM style brake proportioning valve to suit vehicles using  front disc/rear drum brakes

Wire Lengths: (2) @ 55"

Tall profile valve covers

Packed with design and build features

Japanese style stepper motor boost gauge provides high accuracy and quality

GM Gen IV LS3 Bare Aluminium Cylinder Heads 260cc/70cc - Chevy Holden HSV Holden V8 GM style brake proportioning valve"High Quality Performance At An Affordable Low Price" Suits GM Gen IV LS3 Brilliantly engineered and manufactured Made from AC4B Aluminium As cast runners and chambers Sold as a pair Specifications: Combustion chamber: 70cc Intake runner volume: 260cc Exhaust runner volume: 100cc Intake valve diameter: 2. 145 Exhaust valve diameter: 1. 600 Valve stem diameter: 0. 316