Brand new, I was told 10.5 to 1 Ross pistons, I didnt see anything stamped on the pistons, I looked at the bottom sides and they have C45 looks like on the bottom side, I will double check this today. Thanks
2 eyebrows and flat-tops I presume? Sounds like nice pistons.
If they are Ross PN 99625 then the deck was cut a lot more than .010" if these are really sticking out of the block by .025". Have you actually measured this .025" out of the block? This Ross PN starts out .036" shorter than the stock 340 pistons so would be about .018" below a stock uncut deck.
IDK if Ross coulda done custom compression height pistons here....
