2003-2006 Dodge Viper / Ram SRT10 Cylinder Head2003 2006 Dodge Viper Ram SRT10 cylinder head. These are take offs from several different Dodge Viper Ram SRT10 engines. The bare cylinder head option is just that, the head only without valves or springs. If you are looking for a set of heads to port this is the most cost effective option without disassembling your car or truck prior to the port work. The dressed cylinder head includes the head with valves and springs only, if you need rockers or