not too clear what you're looking for Jamie, the "235" is the
nominal size, many GM engines are a decimal amount over or under their nominal size, and any engine that's been bored will be slightly larger cubes because of that increased bore .... the
55.2 owners manual specifies "235.5", as do all the other year owners manuals .... hoping you've got a few more horses or more torque? probably, but 150hp rather than 140 isn't really chest puffing territory, that's just the stock 261 over the stock 235 .... also I believe the later 235's were rated at 135hp rather than 140, maybe GM fudged the numbers somewhere
Bill
