One mechanic said early 1970s. No transom tag and the powerhead core plug has been replaced. Block is repainted blue over what appears to be a medium green. I suspect it's a 1973-1976, mainly cause it's on a 1969 hull and has two mechanical control cables attached to motor. Anybody know any part numbers or part setups that are year peculiar so that I can narrow it down to a specific year? Thanks for your help.<br /><br />John