HPR takes the well known head drain solution to the next level.
Internally the breather have a stepped centering guide for no reduction of flow in the bottom half of the port, making excessive oil drain alot easier from the head.
The custom designed parts this kit makes the installation a breeze, and on top of that its one of the highest flowing solutions on the market.
What does the head drain kit do?
The head drain kit makes an extra flow path between the block and head, reducing pressure build up in the bottom end and reducing potential oil build up in the head.
Features
- Swivel outlet
- HPR “valve stem” design banjo bolt
- HPR custom wing nut
- Stepped centering guide for no reduction of flow in the bottom half of the port
- High flow AN10 adapter and Viton o-rings included
- Pressure tested to 30 Bar
Fitment
Fits all RB twin cam heads RB20/25/25Neo/26
Installation
Remove the freeze plug and install the assembly to your desired angle and torque it down. (torque specifications engraved to bolt)
Note
This is a direct bolt in solution with no machining or re-tapping required.