Any 4-screw head can be adapted to use the 2-bolt valve cover by simply substituting two studs at the proper location for the bolts that would normally attach the rocker shaft stands. Some people even go the the trouble to phony up a tall pushrod cover to make a 235 resemble a 216 when one is installed in an older truck.
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!