It's in my 1967 Mark Twain Vsonic 18' x 10' boat.
I know it's 150hp.
I know it's a straight 6.
It says mercruiser marine on the side.
Please don't say it's a 150hp mercruiser marine engine...:rolleyes:
I'm looking for any detailed-general info on it.
Is it made by GM or Ford or did...