5/16 Steel Exhaust Valve Guide Upgrade for Power Adder Heads CID Big Block Chevy cylinder heads Valve lengths fur our hydraulic

Valve lengths fur our hydraulic cylinder heads measure 5

STD injector location is the lower cast bungs while CNC fuel rail brackets are in stock

Upper Injector location has been shown in testing to make slightly more power than the lower placement

all the while refusing to disclose the weight as its well known that less weight equals improved times and MPH

5/16 Steel Exhaust Valve Guide Upgrade for Power Adder Heads CID Big Block Chevy cylinder heads Valve lengths fur our hydraulic5 16 Steel Exhaust Valve Guide Upgrade with a K Line Valve Guide Liner insert for Power Adder cylinder heads. Steel valve guides better withstand the higher exhaust temperatures experienced in power adder applications.