Hi, I pulled apart my spare motor today. It had some water in it, and was siezed.

Long story short, I thought it was a stock motor, but when I got some of the pistons out... They are ACL ones...

My question is can anyone identify them???
The codes on them are (on the inside)
ACL 3300
89
AP1
1
(on outside)
P

The sad part is, that one of my friends that has a heap of money... startes hitting the top of the pistons to try and get them unsiezed... :( There are some marks on the top....

and my next question is can they be fixed???

also, any ideas on how to get siezed pistons unsiezed without damaging them????