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Newc · 04-19-2020, 05:14 PM

Hi; I always measure the diameter of the 'Dome' in the head. should be close to the stock bore of 3 3/16". Have seen used heads below 3" dome and mismatched pairs. Others will answer this shortly Newc

04-19-2020, 05:14 PM	#2
Newc Senior Member Join Date: May 2010 Posts: 2,485	Re: 8BA head measuremt help needed Hi; I always measure the diameter of the 'Dome' in the head. should be close to the stock bore of 3 3/16". Have seen used heads below 3" dome and mismatched pairs. Others will answer this shortly Newc