The reason is I would like to have the #s matching block in the car, and get better performance out of it. If I can get it working with the factory heads, that's even better.
Everything but the crank is forged. The 4.25" kits are cheaper than the 4.00" kits, so why not? The switch to a forged crank is about $500 over the cast crank after factoring in the appropriate bearings. It's not out of the question, but I'm only planning on 5500ish rpm max anyways. Better off or not, aluminum heads is not the goal for this car, and doesn't fit in with a factory resto look. The only deviation noticeable under the hood will be the 4bbl which will be a factory setup (single snorkel if I can find one).
Cometic has a .040, 3.95 bore HG that will work as well, so that would bump quench up to ~.045. I'm guessing I'll be close to where I want to be on CR after the heads are trued and valvework is done. I also have a set of corteco 3.93, .045's I could try before going to the big bore gasket.
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