I doubt if it would harm the 235. There would be a little drag on performance, as it's thicker than the recommended 30 wt oil. A little additional wear on the oil pump/distributor drive gears maybe.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.