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Old Aug 3rd, 2021, 19:41   #5
mike gilbert
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Last Online: Today 19:00
Join Date: Dec 2003
Location: Peterborough
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Well that is interesting and theres only one way to be sure. I have been offered a head labelled 'B20A from bigger valve era' and asked the owner to measure the valves for me. Mine definitely has the P shaped castings on the head but I dont want to take the head off yet just to measure the valves. We shall see.
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