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Evo / XL / Twin Cam – Stage 1 Cylinder Heads
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.
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.