Tunnel ram 440

AtomicWedgie said

I know you said you didn't want to remove the heads but couldn't you replace the stock heads with a set of 915 or 516 heads and up the C.R. These heads are plentyful and cheap; along with a thin head gasket you could up your C.R. 1 1/2 points. Just a thought. Have you checked with Hughes Engines? They make cams with less duration but with more lift than other cam makers.

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The prob with that is, the later 440 pistons sat way down in the hole, installing closed chambered heads IMO wouldn't do a hole lot, the quench will still not be good, installing a piston closer to 0 deck & the open chambers would work better. The engine is still going to run very well in that A body with what he has, so he should be fine. Oh & in "reality", there is no way it'll jump the comp. up 1.5 points, maybe .5 point with the pistons .200" below deck.