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

CNC chamber softening that incorporates the generic radial conical softening like most companies use

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

CID Heads 2 Piece manifold conversion

and is designed for classes that must retain 4150 bolt spacing

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.