Chrysler Cptn Industrial Flathead ID Question

[Guest clueless]

In looking up engines in various farm, const, ind vehicles and eqpmt, generators, welders, etc, I run across listings of various Chrysler Industrial engines, but so far haven't found any website or reference that lists the Industrial versions and their car/truck equivalents.

The ID designations are confusing, too: I find ones like "Ind-5" (6cyl), "Ind-12A" (a strt 8), "CM-518) (6cyl), "PC-523" (6cyl) (while general engine ID usage would indicate "PC" would be a stationary power unit, this one's in a tractor) and a whole raft of "T-" numbers (T-50 etc).

Does anyone here know of any website that has this kind of comparison info for flatheads, or of any CCptn or other manual or book that has this info?? There must be something dealer mechanics use, but as it is I don't even know what to search and advertise for. Any comments, leads, suggestions appreciated.

[55 Fargo]

Check with Bill W., he's on the Walter P. Chyrsler website, it's hosted by the AACA. Bill is very knowledgeable with these engines whether they were used for domestic or commercial duty. I would think the Industrial engines were 251s and 265s and probably different CIs with the earlier models. The CI numbers were reflecting 6 cylinder engines and not the Straight 8s..........Rockwood

[greg g]

Well "T" numbers were usually assigned to Trucks bot light duty pickups and heavy duty for dumps, and over the road haulers. Also mucking up things is the selling of unnumbered blocks to rebuilders and makers of "other" stuff, like airport tugs, pumps, air raid sirens, welders, pumps, compressors, forklifts, combines, generators, and no telling what else. And there were a couple of tractor builders that used the chrysler flat 6. And through their life time the engine could have been swapped for a donor from any or all of those sources.

I guess all this swappability kind of confuses the issue some what.

[PatS....]

I have an industrial 251 that is going into my '49 Chrysler. It was in a snowblower to power the auger.

There is no engine number at all, looks like there never was one as there are no marks from grinding.

All there was on it was a rebuilders tag from 1951.

The basic engine is identical, just the mount plate on the front was different. The oil pan was a front sump with the dipstick...

and it has the 8 bolt crank flange for my Fluid Drive.

[Guest clueless]

Rockwood: Thxx for the reference; I'll contact him after Christmas, when things have gotten more back to normal.

Greg G: Thxx for the truck reference; sure enough, when I dug out my old (50) Motor truck manual there was every Dodge truck engine with a T- number, something I should've thought to check myself. A good lesson: try the obvious first!

Pat S: It'll be interesting how your swap turns out: many of the industrials have from slightly to considerably different timing, breathing, etc., sometimes developing power at lower RPMs for longevity, and/or being set up to develop power in a very narrow RPM range, etc. Somewhere on one of the forums is a post by someone who put a CCptn ind in a pickup or power wagon, and it performs well; if I can find it I'll post it. Thxx for posting.

[greg g]

Don't forget there were Marine varients also and some of those were cam'ed to counter rotate, so that two engines mated to a center gear turned one prop shaft.