Tall-deck engines allow the displacement to reach for the stars, but a typical, tall-deck, big-inch combination is a 632ci motor with a 4.60-inch bore and a 4.75-inch stroke. Shafiroff offers a Big Dawg combo that makes 945 hp on pump gas with Brodix BB3x rectangle-port heads and a monster mechanical roller camshaft.
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What ever happened to your 426 Hemi heads? The racing community is screaming for a good cast aluminum head. Come on guys Ya gotta make more than Chevy & Ford heads. There are no aftearket blocks or heads out there. I’m An engine builder in California. I’m a former Keith Black employee and they can’t provide the customers with Blocks and haven’t made heads for years. Eric Hanson can’t build product fast enough and no one builds a cast aluminum water block. I build lots of BBC Stuff and use your heads exclusively , but I also build lots of 426s as well. But there are NO blocks & heads. You should do some reaserch you might be surprised. Thanks for your time . Jim