Hey guys, new member here. Been reading and enjoying all the great info. sure makes my work day go much quicker.
I have been running Buick and Rover 215 (3.5L) for about 20 years now. As Thunder stated, the stock motor really does not have much but with a little work and not too much money this block can make some decent power. There are gear-heads out there which have been tweaking and installing these motors in MG's, Vegas and Jeeps for years. There are several proven recipes floating around but typically involve a Buick 300 crank (.6 inch longer stroke) and ford 3.0 pistons. end result is about 250HP at 5000. performance parts are not readily available but replacement parts are. a decent Buick 300 crank is about 100 bucks plus machining. you can buy Ford pistons for next to nothing.
I currently run a stock Rover 4.0L with a Stinger 1.73 and an IVO in flight adjustable paddle prop on a 12 ft Palm Beach hull. I can run 3-4 men plus gear dry all day long. I do have plans on stroking this motor. Those in the know claim I should see close to 300 HP around 5000RPM due to the larger bore. I am also investigating supercharging. I paid $400 for the motor and the only thing done so far is add a carb. end result is an inexpensive and light motor with decent power.
anyways keep the good info coming...