Piston help I dont know what it it is?

[emerson137]

I have a 86 Short rod 250r motor. I cant find this piston any where and it's the one I just blew up. Anyone know what it is and where I can find one like it. Also I bought a pro light one with out the open intake ports and it blew up with in a hr and never ran right. can some one help please?

Thanks

http://i112.photobucket.com/albums/n194/emerson781/parts2052.jpg

http://i112.photobucket.com/albums/n194/emerson781/parts2053.jpg

http://i112.photobucket.com/albums/n194/emerson781/parts2051.jpg

[mfr422]

emerson137,
That's a piston that someone has modified, I can't tell exactly because your pictures are too blurry to see any detail, please repost some clear pics , it's an 88-89 style that has 3 boost ports added, the top middle hole is the only one the piston came with.