TVR E6472
Servo valve
This is the later one way servo valve for the TVR Speed 6 engine. This is the one way servo valve which fits 2 of the 6 throttle bodies on the TVR Speed 6 engine and provides the vacuum feed for the servo operation. This valve was fitted from late 2005 onwards, earlier cars took a smaller valve. The thread on this valve is 5/8 UNF and has a diameter of approximately 16mm.