5/16 Steel Exhaust Valve Guide Upgrade for Power Adder Heads CID Big Block Chevy cylinder heads all the while refusing to

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

Steel Exhaust guides with K Line inserts for the power adder crowd and chamber softening

and is designed for classes that must retain 4150 bolt spacing

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

5/16 Steel Exhaust Valve Guide Upgrade for Power Adder Heads CID Big Block Chevy cylinder heads all the while refusing to5 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.