Posted by clueless [201.202.22.114] on Monday, April 15, 2013 at 23:13:25 :
In Reply to: 6000 rpm flathead mopars in tractor pulls posted by clueless [201.202.22.114] on Monday, April 15, 2013 at 23:05:13 :
If you go poking around at the inliners.org site you'll find a guy and his dad who use these engines in tractor pulls, turning 6000 rpms!! I forget his name but wont be hard to find. He has documented a lot of info on these engines. One thing that seems to be a requirement for any serious engine is to increase the oil flow to #5 and #6 journals by cross-drilling the crank. The transmissions and rear end ratios are very limiting too. A T5 and later rear will do wonders for even a stocker. My 55 Plymouth from a few years ago was rated at 117hp in stock form.