VWIVN-1002S Black Nitrided Inlet Valve Head Diam: 33.85mm (std) Stem Diam: 5.98mm Over Size: 103.90mm Over Size: Black Nitrided Valve Type: Inlet Only use with single groove keeper part# KPR-6S/7 (needs 2 per valve)
See additional information for suitable models
Usually available within 2 weeks if no stock.
STAINLESS STEEL VALVES:
Our intake valves are made exclusively from an upgraded version of EV8 (21-4N) steel. This is the highest grade of steel available and offers the strength to withstand just about any application. Our exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for increased strength at higher temperatures. Some applications ask us to harden certain areas, such as the tips and/or seats. For these applications we will often weld other carbide alloys to the valve for extra durability.
BLACK NITRIDE COATING
This is a hardening treatment that has become increasingly popular in recent years. These black nitride coated valves have harder surfaces and smoother finishes, resulting in less friction for longer life.
