Frankenstein Engine Dynamics 243/799 - LS1 Ported Heads (SET)

Fully CNC ported, Stock LS1 Valves, FED .660” Lift Valve Springs, CNC Valve Job, NO CORE CHARGE!

• Stage 1 Porting
  
• Fully 5-Axis CNC ported, 64cc chamber volume
• FED’s exclusive high performance porting programs via 5-Axis CNC – Intake/Exhaust/Chambers
• Pressure Tested for Leak Detection
• Precision Newen CNC Valve Job, which ensures near zero runout
• All Cylinder Head Sealing Surfaces Including Ends are PCD Machined, Making Sure all Surfaces are True
• Meticulous Hand Blending and Deburr
• PCD Surfacing Optimal For Modern MLS Head Gaskets
• Final Wash and Assembly
• Extreme Attention to Detail and Quality Control at Every Stage