[JokerCPoC]

Originally Posted by bobkoure

Yep, that's a good question - just wasn't the one I was trying to answer. For extra credit, find one that's single pass and that has inlet/outlet tubes that we can use use with minimal modification (so hopefully they come straight out from the core for 1.5 or more before they bend).
Non-aluminum would be good (so stay away from cores for cars with aluminum blocks) - at least for the water passageways.

I think there's been some posting about this already (sorry, don't remember where, pretty sure it was this forum, though).

Danger Den does sell one that gets close at just: 11" x 6 1/8" x 2" in size. And of course It's reasonably priced to Me at $34.99 plus shipping(If any?). Here's an image of It and a link to the larger image of the two.