714 heads

I was looking for a set of 302 heads at the junkyard and thought I'd found them. But they were 714's. After a bit of research, I have read that they are standard magnum heads. Now, from my point of view, they may or not be magnums and if they are, they sure ain't standard. 5 bolt hole valve cover; shaft rocker assembly, oil through the head. They may bolt to my block like a set of magnums but I haven't looked at my LA heads as of yet so I can't tell you how they bolt up.

Can anyone tell me about these heads? How do they flow? Should I pull a set of magnum rockers abs use the oil through pushrods or keep the oil through heads? Any idea what size valves these came with? The valves were tulip style, are nail head valves available?

Also, the pistons in the truck I pulled these heads from were completely flat except a small notch in front, and they came to the top of the block deck, I'm guessing they were high compression pistons. Here's a picture. We're can I get these pistons?



Thanks for any help

Hillbillybuddha