.Full CNC performance porting with precision multi-angle seat work and upgraded bronze guides for maximum flow and reliability:
• Complete disassembly and inspection of all components
• Deep cleaning and media blasting of chambers and ports
• Full CNC porting of intake and exhaust runners for optimized flow and velocity balance
• CNC-machined combustion chambers for precise volume and consistency
• Precision 4-angle valve job for improved airflow transition and sealing
• 1.900” intake / 1.630” exhaust stainless valves
• Upgraded bronze taper valve guides for superior wear resistance and heat transfer
• Premium beehive valve springs matched to cam profile
• CNC deck for perfect sealing and compression uniformity
• Final ultrasonic wash and professional assembly
Result: exceptional airflow, crisp throttle response, and broad power delivery — the proven Shop67 Stage 2 setup for high-output street and performance builds.
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 covers machining 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.
.Full CNC performance porting with precision multi-angle seat work and upgraded bronze guides for maximum flow and reliability:
• Complete disassembly and inspection of all components
• Deep cleaning and media blasting of chambers and ports
• Full CNC porting of intake and exhaust runners for optimized flow and velocity balance
• CNC-machined combustion chambers for precise volume and consistency
• Precision 4-angle valve job for improved airflow transition and sealing
• 1.900” intake / 1.630” exhaust stainless valves
• Upgraded bronze taper valve guides for superior wear resistance and heat transfer
• Premium beehive valve springs matched to cam profile
• CNC deck for perfect sealing and compression uniformity
• Final ultrasonic wash and professional assembly
Result: exceptional airflow, crisp throttle response, and broad power delivery — the proven Shop67 Stage 2 setup for high-output street and performance builds.
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 covers machining 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.
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