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4-Stroke Ported Head(YZ450F)

The exhaust ports and the combustion chamber are reshaped and polished. The Intake ports are reshaped and finished with glass bead. Reshaping and polishing will gain significant power in midrange and top-end without loosing any low end power. As a final step we resurface the gasket area to ensure proper sealing of the head gasket.

The cylinder head will also get a radius valve job and new valve seals

Total price

$475 - standard bore engines

$550 - Big Bore and/or Oversized Valves