| Re: Keith Craft 331 Econo Stroker Motor T, the 331 are easily cable of 420 to 425 horsepower. I have the 331 in my RF. We pulled 340 wheel horsepower on a mustang dyno a couple of years ago. We preferred the 331 as do a lot of road racers with it 1.63 rod riot. These little motors will last for ever. We run solid lifter cams with a little bit longer duration. We twist these motors to 71 or 7200 with no real modification the oiling system. Keith Craft has a excellent rep. You will be very happy with his motor. [img]/ubbthreads/images/graemlins/smile.gif[/img] Happy horsepower |