top of page

Hayabusa Gen-2 Billet Cylinder Head. PPR-HS350

About PPR-HS350:

Our HS350 head is not produced by reverse engineering, so it is not simply a large port head. if you attention to the intake and exhaust ports, it is clear that it has nothing to do with the original Gen2 head. The Gen2 oem head when designing fabrication it was designed to be used in many areas because this vehicle was suitable for daily drive use to.


What improvements we made to our head.

-Friction port surface below 1 percent we get with special cnc cutting.

-High port slope angle.

-Port injector channel special designed to improve air and fuel mixture.

a-Improved oil channels (at 1100 rpm plus 0.3.42 psi )

-Improved oil recycling channels.

-Different valve angles designed to prevent at high lift valve to valve hit problem.




R&D Time 1 Year

  • CNC Ported/Machined finish port

  • 6068 Rolled type t6 head material

  • Formula technology port design

  • Hand blended finish work (your choice)

  • 4-angle Valve job

  • Heads are ultra Sonic cleaned prior to assembly

  • Machined PPR logo

  • 35mm Nimonic Intake Valves 

  • 29.5mm Nimonic Exhaust Valves 

  • Forged Bronze alloy intake Valve seats

  • Forged Beryllium alloy exhaust valve seats

  • Bronze alloy guides

  • Performance Valve Springs 70 lbs

  • Long life tool steel or titanium retainer

  • Hardened Steel Spring Platforms

Recommended to use;

  • Drag race setup.

Total Price:6.200 usd 

Without Everything Core Billet Head Price:4.980usd

Extra your choices;

  • C.chamber cnc porting and hand finish:Plus+ 650 usd

  • Custom c.chamber choices Plus+ 800 usd

  • Titanium c. valves:Plus+ 600 usd

  • Titanium valves:Plus+ 1500 usd

  • Valves size selection:Free

For order and

hayabusa gen2
hayabusa billet head
Hayabusa billet head
Flow Test
flow testing
hayabusa billet
Gen2 billet head
Hayabusa gen2 billet head
bottom of page