318 with 360-587 1.88 heads

Since the heads are off of it, rotate that sucker over to TDC and measure how far down the pistons are in the holes. I'd check one on each side just to see if it's close, 318's aren't known for always being square.

You can have the heads cc'd, or do it yourself, it's actually not all that hard. All you need is the clear plastic "cd" at the bottom of a blank cd package, or a flat piece of plastic and a graduated beaker or syringe. I use a heavy weight oil, easier to deal with and less bubbles than water or thinner liquids. Just meaure out a given amount, fill the chamber and see what youve got left over. You can also use clay to pack the chamber, and then throw that in a graduated beaker filled with water to see the displacement. Usually those methods are accurate to a cc or two, better than the 65-72 cc range the heads usually run in.

That will let you really calculate the compression and see where you're at, it'll make a big difference picking a cam.

I would think you'd be better off finding a set of magnum heads, they're closed chamber and usually in the 60-62cc range. Much better on a 318 than LA 360 heads because they keep the compression up, and they even have bigger valves. They're getting a lot easier to find in the wrecking yards and are usually pretty cheap. Just have them magnafluxed to check for cracks before you run them.