Stage 1 3400 V6 Cylinder Heads

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Product Information

Stage 1 is Stage 0 with better hardware and machine work.  That part shouldn't be surprising, so lets keep it simple.  We replaced the valves with a newer, lighter version of the same stock diameter.  It helps that they also flow a little better.  To take advantage of this, we also do a 5 angle valve job on the intake seat.  This is what we have found to work the best on the flow bench, and with good results on the dyno.

  • A cleaned, baked, blasted, and pressure tested set of heads
  • Machined deck surface good for an MLS head gasket (or stock).
  • Port matching, bowl blend, and deshrouding of the valves
  • New 3500 valves for lighter weight and improved flow
  • 5 angle valve job on the intake seat, 3 angle valve job on the exhaust, 2 angles on the valves
  • New valve stem seat/seals
  • Comp 26986 Valve Springs


  • Time-Sert for Rocker Arm Bolts.  This is a useful upgrade for the 8mm rocker arms used after 2002.  While not common, there have been rockers that get stripped out of the heads.  This option will eliminate the possibility.
  • CBX Thermal Coating for combustion chamber and valve faces.  Great for motorsports applications, this coating will help keep the heat in the exhaust rather than being absorbed into the piston and cylinder head.

If you have any questions, feel free to contact us with the store form, or call 574-968-7607. 

Product CodeWOTLA1S1HS

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