Moroso Billet Aluminium Relief Valve (MO22637)

MO22637 - VENT VALVE COVER VACUUM RELIEF

3/4"-16 Thread

Part Number: MO22637

Two styles allow fastening through valve covers (Part No. 22637) or threaded directly into intake manifold (Part No. 22636)
Vacuum relief point is adjustable by shimming an internal spring to get the precise amount of vacuum desired
Can be disassembled for easy cleaning and maintenance and will work with any vacuum level
They are made of 6061 aluminium and have a smooth, attractive finish