Evo / XL / Twin Cam – Stage 1 Cylinder Heads

from $795.95

Complete performance rebuild and precision machining service:

  • Full disassembly and inspection of all components

  • Deep cleaning and media blasting of chambers and ports

  • Pocket porting with corrected throat diameters for optimal flow balance

  • Precision 3-angle valve job

  • Bead-blast and resurface Stock valves 

  • CNC deck for perfect sealing and uniform chamber volume

  • Final ultrasonic wash and assembly with premium beehive valve springs

Result: crisp valve sealing, improved flow efficiency, and reliable power gains — the ideal foundation for a strong street or touring build.

Note: This is a send-in service for your existing cylinder head cores.

Customer must ship in clean, rebuildable head cores for this service.

Pricing is for machine work and labor only — no cores are supplied or exchanged.

Any additional parts or repairs required beyond the listed service will be quoted separately upon inspection.

Add on-:

Complete performance rebuild and precision machining service:

  • Full disassembly and inspection of all components

  • Deep cleaning and media blasting of chambers and ports

  • Pocket porting with corrected throat diameters for optimal flow balance

  • Precision 3-angle valve job

  • Bead-blast and resurface Stock valves 

  • CNC deck for perfect sealing and uniform chamber volume

  • Final ultrasonic wash and assembly with premium beehive valve springs

Result: crisp valve sealing, improved flow efficiency, and reliable power gains — the ideal foundation for a strong street or touring build.

Note: This is a send-in service for your existing cylinder head cores.

Customer must ship in clean, rebuildable head cores for this service.

Pricing is for machine work and labor only — no cores are supplied or exchanged.

Any additional parts or repairs required beyond the listed service will be quoted separately upon inspection.