EV8-Z18 Intake Exhaust Valve

The Ferrea Racing Components F1919P-6 intake valves are designed for extreme duty in high-rpm, high-horsepower racing applications, specifically for Volkswagen 2.8L VR6 12V engines. These are a 1mm oversized replacement, featuring a 40mm head diameter and a 6.98mm stem diameter, with an overall length of 106.15mm. They also incorporate a 12-degree S-Flo design and a single groove keeper. Ferrea utilizes special aerospace-quality alloys, such as EV8-Z18, to ensure high tensile strength. Their exclusive two-step slow forging process optimizes grain flow, while a 48-hour heat treatment and stress-relieving process establishes molecular integrity. These valves are finished with avionics-quality hard chrome and a hardened tip for durability. Engineers at Ferrea conduct extensive flow bench testing to achieve an optimal balance of flow, velocity, and efficiency. This results in valves with smoother radiuses and unique undercuts, contributing to their performance and reliability. These Competition Plus valves are chosen by many top racing teams in NASCAR, Drag, Oval, and Sprint Car racing.