Copper Seat Installation - $100 per seat

Includes:

  • Complete cleaning of head
  • Removal of old seat
  • Installation of copper-beryllium seat
  • Seat cut to OEM specs
  • Seat matched and blended with port
  • Copper-beryllium valve seat included

Cut Valve Seats / Valve Job - $30 per seat

Includes:

  • Complete cleaning of head
  • Valve seats re-cut to re-establish consistent seating surface
  • Seats blended with ports for smooth seat-to-port transition

Bronze Guide Installation - $20 per guide

Includes:

  • Complete cleaning of head
  • Removal of old guide
  • Installation of new bronze guide
  • Guide diamond honed for perfect match to valve stem
  • Bronze valve guide included

Hand Porting - $250

Includes:

  • Complete cleaning of head
  • Intake ports hand ported and polished for improved air flow
  • Exhaust ports hand ported and polished for improved air flow
  • Ports matched and blended with valve seats

CNC Porting - $400

Includes:

  • Complete cleaning of head
  • Intake ports precision CNC ported for improved air flow
  • Exhaust ports precision CNC ported for improved air flow
  • Ports matched and blended with valve seats


Copper Valve Seats

Bronze Valve Guides

About JRD

JRD is a high performance racing development company. We specialize in cylinder head modifications and race engine builds, but also offer basic maintenance and performance services. With over 30 years of machining and racing development knowledge and experience, you can count on our products to meet your performance needs.

Contact

Johnson Racing Development
771 N Golden Key St, Suite A
Gilbert, AZ 85233, USA

480-559-1001

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