Contact seller
I have a 71 date coded (2380) K member which I believe to be a big block due to the skid plate. It does not have a coin. I'm pretty sure it's a B-body K member. I know the E-body member has a slight slant where the steering box mounts. To me it looks like a B-body, but you be the judge. I've heard some say you can shim the steering box to make it work in an E-Body. I've included some pictures, maybe you can tell by the inserted bolt. $225 plus shipping from Lincoln Nebraska, 68516. Pay with money order only.