Honda | R40 Cylinder Head Machined | Unported

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  • Regular price $ 2,150.00
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Got questions?  We've got answers, give Larry the Honda guru a shout.

The Worlds First S2K aftermarket casting is now available in a porter version that is ready for your custom port work!

Seats and Guides not included.

• Unported, ready for you to finish. 
• Designed, Cast, and Machined in the USA
• A356-T6 material for maximum strength
• Precision machined using dedicated Hurco, Rottler, and Newen equipment
• Engineered with thick decks to handle extreme cylinder pressure
• Port wall thickness enables “generous” porting not possible with OE castings
• 3-D printed water-jacket cores for superior cooling
• Exhaust-side air/water bleed screw standard
• Heads accept OE Honda VTEC and non-VTEC valve train component


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