Cylinder head part numbers and specs

[dan66cj5]

Hey, I found a set of PN: 25518445 cylinder heads. I am wanting more information on them. They came off a 85 oldsmobile 3.8

valve sizes, CC size, runner, etc

Also, I'd like to know about changes though the years of the 3.8 heads..

Anyone know this information, or a source ?

Thanks,
Dan

 

[Red Regal T]

They are typical turbo regal/NA regal 3.8 heads commonly referred to as 8445 heads. Unless you go aftermarket, that's it.