One of the reasons i questioned the SRP pistons is about 2 or 3 yrs. ago we had a person who was posting here that worked for JE pistons and i told him i wouldn't put a SRP in my lawn mower. At the time i was a little upset about melting down the top of a piston for about 1/4" to the first ring on my 1471 blown 358 sm/blk chevy, causing masive damage blowing oil out filling up the catch can and even oiling the right side slick and spinning 4 rod bearing and 2 main bearing and scrapping the crank. He responded with we won't sell SRP pistonn for lawn mowers, and that the SRP piston is only good for 100 HP per hole, anything over that you're flirting with danger.
I'm sure the thread is gone by now, but maybe some remember.
Zip.