[Jay S]

Reverse hanging pistons has been tested and done over the years by lots of big names, David Vizard, Joe Sherman, Smokey Yunick, most recently Motor trend engine masters. Richard Holdener.

There is supposedly a slightly difference in acceleration at some RPMs. There has never been any quantitative numbers that show an increase or decrease in anything when it come to piston offset though. It is pretty much all BS.. Engine masters did an engine where they pulled all the pistons out and moved each piston and rod to the opposite engine bank. With dyno pulls before and after, and got the exact same numbers, with in 1 HP! No honing, rings were not changed, no changes other than moving the pistons to the opposite bank. It did nothing.

If it was not using oil before, I would not change the pistons to the other direction. If it had a rod knock you will have the pistons out anyway. Do what ever you want, change them back to stock, leave them reversed, I don’t think it matters. The piston orientation did not cause any of the current issues.

I have never been able to hear a difference in piston slap. I think on some engines i hear a slightly difference in the exhaust tone with the pistons reverse hung. But how do you quantify that…you really can’t..