For NISSAN SR20DET
NAPREC Forged Big Valve
The umbrella part is created by forged molding, and the finishing is processed by the machine with computer control.
The material for EXH is exactly as same as automaker mass-production vehicle used.(Of course, it is also used for INT.)
The abrasion-resistant and anti-scuffing have been improved by giving the surface processing of nitrided treatment.
Moreover, the bend-resistant is also excellent.
*(To RNN14, impossible to install.)
| INT | EXH | |
|---|---|---|
| Umbrella diameter | Φ35 (+1) | Φ31 (+1) |
| Stem diameter | Φ6 | Φ7 (With no sodium) |
| Stem length | STD | STD |
• List Price: JP¥37,800 (INT and EXH /Set of one)
It is one example that is published in here. Custom-made various is received.
It will correspond to the consultation concerning all engines, and feel free to inquire, please.
It will correspond to the consultation concerning all engines, and feel free to inquire, please.