Compression Release Valves - Sold as a Pair. Overall Length = 1.400in. x Thread Length = 0.425in. - AVV

* Long protrusion - short thread

* Shorter thread sections make installation easier with less drilling required than OE style

* High temp resistant Knobs

* 10 x 1.0mm thread

* Sold as a pair

Tech Tips:-

Most commonly used in Twin Cam applications