I have a set of hypers that I bought from deadmanscurve about but I am not gonna use them. The number on them are H644pp and they are .020 over. $90 plus $10 to cover some shipping cost so $100 even shipped in lower 48
They are federal mogul speed pros and I believe they are new. Below is the link to the post where I originally bought them and he has a picture of the box they were in. http://v8buick.com/index.php?thread...tuff-to-move-300-350-455.317871/#post-2649189
I've been searching all over the internet and the only reference I have found so far is on the Turbo Buick site. It appears they were intended for a 3.8 V6, which begs the questions about fit since the 231 has a shorter stroke???
They were a boxed set of 8 pistons , but I reboxed them to reduce shipping cost if I remember correctly . And I saw NO signs of them being installed or maybe even unwrapped from shipping paper . Decent looking set . Piston markings matched box ID . I got them on v8buick I think , awhile ago , for spares in case .
I will take these if they are for a Buick 350 and they get to me. Just pm me your pay pal or how you would like payment sent. Thanks a bunch