
The Story
These cylinder heads feature fully CNC machined combustion chambers along with CNC profiled bowls and port entries/exits for improved air flow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength. Extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock.
Cylinder Head Specifications:
Combustion chamber volume: 73cc
Intake runner volume: 202cc
Exhaust runner volume: 75cc
Intake valve diameter: 2.165"
Exhaust valve diameter: 1.650"
Valve stem diameter: 8mm
Valve guides: Manganese bronze
Deck thickness: N/A
Valve spring diameter: 1.066" / 1.300"
Valve spring maximum lift: .630"
Rocker stud: N/A
Guideplate: N/A
Pushrod diameter: Stock
Valve angle: 18.8∞ (I) / 16.8∞ (E)
Exhaust port location: Eagle
Spark plug fitment: Stock
Sold Individually.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
These cylinder heads feature fully CNC machined combustion chambers along with CNC profiled bowls and port entries/exits for improved air flow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength. Extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock.
Cylinder Head Specifications:
Combustion chamber volume: 73cc
Intake runner volume: 202cc
Exhaust runner volume: 75cc
Intake valve diameter: 2.165"
Exhaust valve diameter: 1.650"
Valve stem diameter: 8mm
Valve guides: Manganese bronze
Deck thickness: N/A
Valve spring diameter: 1.066" / 1.300"
Valve spring maximum lift: .630"
Rocker stud: N/A
Guideplate: N/A
Pushrod diameter: Stock
Valve angle: 18.8∞ (I) / 16.8∞ (E)
Exhaust port location: Eagle
Spark plug fitment: Stock
Sold Individually.






















