I've seen lots of jackhammer compressors made from Model A Fords. Cut the frame off at the front seat, weld the front axle with the wheels in the straight ahead position, add a tow bar, and use the cowl-mounted gas tank for fuel. Then the engine was converted with a special cylinder head and camshaft to run on cylinders 1 & 4, and compress on 2 & 3. A big reserve tank was mounted across the front floorboard area.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!