35.5mm X 8mm Stainless Steel Valve - Type 1 Engine - Twin Port Inlet Valve - Top Quality

Upgrade your standard VW aircooled engine valves with these high-quality one-piece stainless steel valves, designed for both reliability and performance. Manufactured from forged stainless steel, each valve features a hardened stem to resist mushrooming and wear, along with precision-cut keeper grooves for strength and secure fitment under high-load conditions. These valves are sold individually and are suitable for use as either intake or exhaust valves.

With a 35.5mm head diameter and 8mm stem, this valve is an ideal premium replacement for stock 1300–1600cc Twinport engines as well as 1500cc Single Port engines. It can also be used in performance builds where improved airflow and durability are required. The swirl-polished head provides smoother air movement, increased efficiency, and better combustion characteristics, making it a strong choice for engines running upgraded carburettors, improved heads, or higher RPM ranges.

These stainless steel valves tolerate higher temperatures and resist corrosion far better than standard valves, contributing to increased engine longevity and reliability—especially in aircooled engines that depend heavily on efficient heat dissipation and valve control.

Important Fitment Note:
Stainless steel valves require lash caps in all applications. This prevents stem tip wear and ensures correct rocker geometry.

Measurements:

• Valve head size: 35.5mm

• Stem diameter: 8mm

• Material: One-piece forged stainless steel

• Swirl-polished head for improved airflow

• Suitable for intake or exhaust

• Quantity: Sold each (recommend x4 for a full set)

Applications:

• VW 1300–1600cc Twinport engines

• VW 1500cc Single Port engines

• Suitable for both stock and performance cylinder heads with appropriate modifications