11/32 Steel Exhaust Valve Guide Upgrade for Power Adder Heads Dart 10D CNC chamber softening that incorporates

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

Everything you would come to expect from the experience gained manufacturing and developing the world renowned 3V Cleveland heads and intakes

and is designed for classes that must retain 4150 bolt spacing or customers with a 4150 carb or throttle body

24" Deck Blocks

65" exhaust exceeding 300 CFM on a 4

11/32 Steel Exhaust Valve Guide Upgrade for Power Adder Heads Dart 10D CNC chamber softening that incorporates11 32 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.