I picked up a 2.5 promax powerhead about a month. I pulled the heads to find these pistons #89/135+0 145--#89/125+0 145 all 6 are 15ths over. Who's pistons are these. Next,the ECU says 225 promax but the model tag is missing the end #s,don't know if this one tells anything-PF00551201. Thank you for the Help