Thanks a bunch for posting those, David! I really appreciate the time and effort you took to downsize those "too-big" jpegs of mine so they'd fit the format here.
The thing about Charlie was... he built everything he raced. By that, I mean, Charlie conceived the idea for a car, built a jig to construct the frame on, built the entire underpinnings, including narrowing the rear end and building the axles, frame, suspension, steering mechanism, axle control/location apparatus, did the interior (aluminum), built the seat (titanium, usually), did all the bodywork, and then put the motor together after deciding what was going to work and what was not, in terms of go-fast components. Then, he drove it!!!
John Hagen was a master driver, and engine builder/tuner, and his car was about .2 quicker than Charlie's but he didn't build it. Charlie was a rennaisance man... there seemed to be nothing he couldn't do.
Insofar as the short-deck Hemi engine was concerned, there had been smaller-displacement (2nd-generation) Hemis built before, but they had always been based on the 426 block. In Kansas, a guy named Fred Cutler (or, was it "Ted"?) had run a 383 Hemi in a wagon, I think, and Dave Koffel had built some, but they didn't have the advantages associated with the smaller 383/400 blocks.
Charlie had run a 426 in an Anglia Gasser, and in an A Street Roadster, so he was very familiar with the top end of the motor, but it was the lower half that fascinated him. He wanted the shorter stroke, shorter, lighter rods, and lighter crankshaft that the 383's enjoyed. Alas, the Hemi heads were too different in some important ways for the factory to have adapted them to the wedge, short-deck motor, but Charlie never saw a mountain too steep to climb, so he decided that this marriage was do-able.
He gouged the lifter-valley walls up near the top of the deck for pushrod clearance, adding some pieces of steel tubing to seal the water leaks, and dug eight troughs in the block for the attachment bosses that would receive the top row of cylinder head hold-down studs that are unique to the Hemi.
If that's clear as mud, I apologize. Look at the picture; it's worth a thousand words, easily, especially, the way I write! Maybe two-thousand...
So, with the head stud problem taken care of, along with the pushrod clearance issue resoved, the only other thing left to do was to fashion an external oil drain-back tube to return the top-end lubrication to the pan, because the wedge block had no such pathway for the oil to drain into.
Because of the short stroke, (reduced piston speed), this engine would see 10,000 rpm with regularity, and reliability. A narrower intake manifold with a smaller plenum was built by Jerry Hemmingson, (of Jerico transmission fame,) for this little powerhouse.
This "short-deck Hemi" was lighter, smaller, and more powerful (per cubic inch) than a 426, but, it was too little, too late.
John Hagen set the mph record with his, and was runner-up at the Pomona World Finals, with less than a year's R & D time, but the winds of change just blew this little feller right into the history books, as the 500 cubic inch NHRA Pro Stockers became the reality the following year, and we all know what they say about displacement... LOL! Size matters!
Never a guy to waste parts, Charlie put a cut-down 440 crank in his (for 510 cubic inches) and ended up running it on nitrous in IHRA's Pro Stock in a new body (the Volare you see pictured in the previous post by David.) He set the strip record at Eddyville and did some match racing with it, but heard the siren song of NHRA's Stock Eliminator, and built a new toy; a '66 350hp 327 Nova for C/Stock; a twin to a car he'd bought new in '66, and had a lot of fun with at the Des Moines strip, Cordova and Rockford "back in the day."
It was a "work of art," too, but that's a whole 'nother story.
RIP, Charlie; hardly anyone did so many things so well...