100% Brand New Items, Never Used Or Installed? Engineered and Tested to Meet or Exceed A Equipment Standards and Performance. Cylinder: a 86.50mm Standard Bore. Piston: With 9.9:1 Compression Ratio. Gaskets: High quality and will keep a perfect seal between all of the components. Professional installation is highly recommended. Head Cover Gasket: 12315-HP5-601. Head Gasket: 12251-HP5-601,12251-HP7-A01. 1x Piston Ring KitPiston,… Read more →