no idea. it came with my swap, which was a gsr bottom, b16 head, and that ls tranny. i upgraded to a gsr tranny w/ quaiffe.
its hydro, and its an S80 ls. thats all i know.
i never ran it, couldn't tell you grindage, or milage.
thats why im selling it for 300.
if it doesn't work (which i don't see why it won't considering it came with my swap which was a running motor set) i will take it back and refund your 300. (but you gotta bring it back to me or ship it).