For MITSUBISHI 4G63 LANCER EVOLUTION
NAPREC Forged Big Valve
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.
| INT | EXH(With no sodium) | |
|---|---|---|
| Umbrella diameter | Φ35 (+1) | Φ31.5 (+1) |
| Stem diameter | Φ6.6 | Φ6.6 |
| Stem length | 109.4(±0) | 109.5(-0.1) |
| Weight | 52g(-3g) | 47g (With no sodium: -8g) (With Sodium: +2g) |
• List Price: JP¥42,000 (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.