Was The Hudson 7X Engine Ever Advertised?

I've always thought one of the most interesting aspects of the 7X engine, as you can see, was that they knurlized the pistons.

In the mid-'60s I bought a low mileage '50 C8 conv. from the original owner in San Jose, Calif. In '53 he blew a rad. hose going up a mt. grade, overheated & ruined the 8 engine. He ordered a complete 7X engine package inc. dual exhausts. It had about 50K miles on it when I got it, the engine about 12K. It had been a high school graduation present & he also got literally every available accessory inc. dual fog & spot lights, back up lights, sun visor, o.d., Drive Master, radio, heater, etc. It was Coronation Cream (I believe a conv. only color) with red leather but the original owner had had the dealer paint it black, which is what he wanted, as there was no black '50 C8 in the Bay area Zone.

I had the car, which Jack Miller told me was the best original step-down cv. he'd ever seen, for many years. I drove it to a National Meet in Indiana once. It was the best & smoothest Hornet engine (exc. maybe the '56 with hydraulic lifters) I ever drove & I never had to touch the engine.

Last time I saw it was at the Southwest Borders sponsored Regional in Escondido, Calif. - it had gone thru 3 subsequent owners & had gone downhill. I probably have some old pics of it somewhere. It is one of the few Hudsons I've owned I regret having ever sold.

The several factory 7X engines I've encountered had the big valves with the block relieved & the head combustion areas "cleaned up" (smoothed out) or "ported" (the term used at the time).

One big advantage of the 7X over the stock engine was the use of big studs instead of cap screws so you could torque the heads down to 100 ft. lbs. thus not blow head gaskets.

I understand the biggest contributors to h. p. was the dual exhaust manifold as the inability to "breathe" is the biggest disadvantage of a flat head engine which is why the 7X had special heads, big valves, & blocks "ported".

There have been a lot of Hudsonites over the years who've claimed they have a 7X engine in their cars but almost all are ones they've created, or let's say "7Xed" & how good a job was done was determined by the size of their billfold, their access to or willingness to use or seek an excellent machine shop, & how much time they'd be willing to spend on all the "little" things, that in their totality, make the ultimate difference.

Right - the factory 7X in the previously mentioned '50 C8 conv. I had had a dealer stamped # with a prefix, I believe designated by the state of Calif., denoting it was a replacement engine.