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Twins / Differences between A65 engines?
« on: 18 March, 2017, 21:52:23 »
So I recently purchased a 1971 BSA A65 Lightning.
The engine in it is a 1965 Lightning rocket ( thanks to Julian on here for helping to identify). The engine needs work, and this has put me in a predicament. Would a 1965 cylinder head work with a 1971 oil in frame? Reason I ask I need to purchase new valve guides, the 1971 cylinder head, had different valve guides from the earlier engines.
The engine in it is a 1965 Lightning rocket ( thanks to Julian on here for helping to identify). The engine needs work, and this has put me in a predicament. Would a 1965 cylinder head work with a 1971 oil in frame? Reason I ask I need to purchase new valve guides, the 1971 cylinder head, had different valve guides from the earlier engines.