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Amal part number 389/3732
these are the legendary Black Diamond™ valves
These include recommended clearances and suggested ring gaps that have been successfully used at our shop on street and racing engines
These valves can also be used in pre unit alloy heads (as oversize) to replace the 1
REUSABLE Triumph primary gasket kit for Unit 500 Triumph 650 Amal part number 389/3732Included with the first ever aluminum core reusable 350 and 500 Unit Triumph primary gasket is everything you will need to seal it up. This convenient kit includes one . 048" thick aluminum core Primary gasket, one . 032" aluminum core rotor inspection cover gasket, one 1 4" drain plug copper washer, one inspection plug O ring, and one chain adjuster fiber washer. This made in USA kit is handy for anyone who needs to service their clutch, or just
