040 Twin Port Cylinder Head - 1600cc (35.5mm X 32mm Valves)

This complete twin port cylinder head is a new 040 casting cylinder head supplied fully assembled with valves and valve springs installed, ready to fit to Volkswagen aircooled 1600cc engines. The cylinder head forms the combustion chamber and houses the valves, valve springs and guides, controlling the flow of air and fuel into the engine and exhaust gases out of the engine. Good cylinder heads are essential for engine performance, cooling and reliability.

This head is fitted with 35.5mm inlet valves and 32mm exhaust valves with 8mm valve stems, which is the standard valve size for 1600cc twin port engines and is suitable for standard engines as well as mild performance builds. The 040 casting is a later improved design with better cooling fin design and improved airflow compared to earlier heads, helping reduce engine temperatures and improve reliability.

The head is machined for 94mm cylinders, meaning it can be used on engines from 1600cc up to 1915cc depending on engine build specification. It uses long reach spark plugs (M14 x 1.25 x 16mm) and has a 58cc combustion chamber.

Being supplied complete with valves and springs makes this an ideal replacement for worn, cracked or damaged original heads, or for new engine builds.

When fitting, it is recommended to also install new pushrod tubes, rocker cover gaskets, cylinder head nuts and washers, and a full engine gasket set.

Specifications:
• 040 casting twin port head
• Complete with valves and valve springs
• 35.5mm inlet / 32mm exhaust valves
• 8mm valve stems
• 58cc combustion chamber
• Long reach spark plug M14 x 1.25 x 16mm
• Machined for up to 94mm cylinders

To Fit (Aircooled):
VW Beetle (1971–1979) – 1600cc Twin Port
VW Type 2 Baywindow (1971–1979) – 1600cc
VW Karmann Ghia (1971–1974) – 1600cc
VW Type 3 (1971–1973) – 1600cc