What pistons are these

[blkp42e]

Bought this motor for $45 to replace the one that i took out of my car.

I guess you can call it a bandaid until i can build one. anyway, i took the heads off and the pistons look nothing like i have seen on the 4 of 5 i have torn down.

Anybody know what these pistons are? hypereutic maybe?

I attached a pic of old motor vs new one. the new ones look like they are cut deeper

[94svtcobra]

first ones look like stock forged out of the fox body H.O. motors, n the second not sure, but those valve reliefs look pretty big for a stock piston

[blkp42e]

yeah. the first ones are stock forged. i cant figure out wtf the other ones are.

Seeing that the block was painted orange... may be a 306 or something

[Rodeheavers]

the second ones look like cast sealed power, if you wire brush the tops, there should be a pn to look up.

[blkp42e]

ok ill clean them up this weekend. i just hope these things dont suck with my twisted wedge heads and s trim

[Rodeheavers]

nope not cast, they are hypereutectic
http://www.re-racing.com/Engine/Pistons/Hypereutectic/Sealed-Power-H273CP-040-p7981220.html

[blkp42e]

ugh. damnit. kaboom! oh well. thats why i call it a bandaid

[AdamantiumSilvr]

Getting some Stang work done I see er at least tryin to. Looking forward thou to meetin up and gettin out and about more this summer. I think I'm totally retiring from ice hockey after that last outing thou. Will see. I got F'd up like 5 times and the last one was the cherry on the icing!