plz help identifying what piston rings i need

[JRS19]

I just bought another project banshee and the previous owner said it had a big bore kit on it but didnt kkow what one. The engine was seized from his kid starting to change out the gaskets then decided not to finish about half way through..? Lol idk but he left the engine outside with head off completly open  for 5 years. Smh

i finally got the pistons free but they need new rings and i dont know what exact ones to get . Under the pistons the have markings “393” and a “w” with a circle around the w 

on the top of pistons it says

F51G9

0.50 MM

513P2

CD

 

i cant find them or what rings to get so plz helpppp!!!!!

 

[T13]

Wiseco +.50mm rings

[03SEBanshee]

I just bought another project banshee and the previous owner said it had a big bore kit on it but didnt kkow what one. The engine was seized from his kid starting to change out the gaskets then decided not to finish about half way through..? Lol idk but he left the engine outside with head off completly open  for 5 years. Smh
i finally got the pistons free but they need new rings and i dont know what exact ones to get . Under the pistons the have markings “393” and a “w” with a circle around the w 
on the top of pistons it says
F51G9
0.50 MM
513P2
CD
 
i cant find them or what rings to get so plz helpppp!!!!!
 

That's an old forged Wiseco piston BUT from how it looks I wouldn't use it again, a new piston and rings is FAR CHEAPER THEN A WHOLE ENGINE WHEN THAT OLD ASS PISTON BREAKS APART IN YOUR ENGINE.

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