67-68 Valve Cover Engine Code Decal "IU" L89 435HP 4 Speed with Aluminum Heads
With aluminum head. Note: Valve Cover Engine Code Decals are mounted on rear vertical surface of RH valve cover. Valve cover engine code letter kit, IU. All 427 L89 w/435 h.p., 3x2 BC & L71 engine w/aluminum heads and 4-speed.