'68 318 to carbed Magnum 5.2: Check my checklist

cudak888 said

Not sure if he's done a three-angle job on it; possibly, as he was hot-rodding the 5.9 in his Dakota R/T. They may be the stock valves relapped. Heads are all of $300 and said to seal perfectly at the valves. Mineral spirits down each port ought to confirm that quickly. If so, I see it as being $700 ahead.

Might as well just use the Crosswind and sell the Edelbrock. Small price to pay.

If I stuff any more power under this hood, I'll guarantee myself an eaten-up 904.

-Kurt

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Gotta ask, as none of us are there to verify the condition. Tim is correct though, you could lap in some new valves, install good springs and be done. The reason I'm a little skeptical is simply because used heads are just that, used. If in the event the guides are worn out of spec, and valves are equally worn, springs not springing...you get the idea, that's why I brought up that you may not be ahead excepting the cost of surface machining. I've bought many used parts...some in near new shape, others nearly dead...your , mileage may vary.

As far as your 904 being eaten up behind a near stock 360, I will say there's no better time to do a rebuild than when the engine is out.