I was thinking of buying a set of bare ones and putting them on my 318 for a lil more performance but the valves are 1.92 and 1.60, a lil big for a 318 but would work reasonable well possibly.
Actually that is what they used on stock 318 magnums and they work great. I had a 93 Dakota I bought new with the 318 mag and just did a few bolt on mods and it ran 14.50's with some traction problems. When I could get it to hook good it would go 14.30's. The truck weighed 3800 with me in it so I didn't think that was bad at all. Had the stock 3.55 gears (single track) and stock converter too.