Hey guys, engine shop is coming for my engine on Monday, and I?m sure they can answer, but...it?s Saturday.
The pistons removed from my o-320 are marked inside ?superior? and the on one inside skirt 130700 and other side 1275. There are a few other markings, 07 and then some that I didn?t put on glasses for.
None of these numbers correspond with any current or former Superior piston numbers I can come up with. A google shows me one on sale on eBay, but it doesn?t look like the seller knows what they are, and one refer nice to here from an io-360.
Since I started this process in hopes of swapping pistons for higher compression, now I?m curious if I did in fact have the 7:1 pistons I was told, or if they were actually the 8.5:1 160hp pistons...
Thanks if you can help!
The pistons removed from my o-320 are marked inside ?superior? and the on one inside skirt 130700 and other side 1275. There are a few other markings, 07 and then some that I didn?t put on glasses for.
None of these numbers correspond with any current or former Superior piston numbers I can come up with. A google shows me one on sale on eBay, but it doesn?t look like the seller knows what they are, and one refer nice to here from an io-360.
Since I started this process in hopes of swapping pistons for higher compression, now I?m curious if I did in fact have the 7:1 pistons I was told, or if they were actually the 8.5:1 160hp pistons...
Thanks if you can help!