Looking at the axle and horns, I believe it's a National... If so, good find! Compare to this one:http://www.jalopyjournal.com/forum/showthread.php?t=300115 http://www.conceptcarz.com/view/photo/142494,12519/1916-National-Racer_Photo.aspx
the back kick up on this frame had been cut off. there is also another slightly newer frame sitting on top of this frame.
I had a similar axle that I sold a while back and never did figure out what it was to. That frame and axle would look great under a speedster. I think the Dodge touring frame I drug home in Texas in about 1970 had front spring mounts like that. Wish I had that frame now.
It also looks like my 27 chevy frame, and front suspension. especially with the no brake design and large king pins on the front axle, but that was probaly pretty standard back then. Good luck with it.
Looking closer, the National has a dip in the center of the axle that doesn't show in your pictures. FWIW, it also uses 8 bolts to retain the spokes, not 6. I saw what looks like a logo on the shackle. Blew it up if that helps anyone.
I think you're on the right track with early-mid 20's Chevrolet (thanks for the PM, Bob ). Looks to be right after the 490's (had quarter elliptic springs front and rear).
The fella who built the racer that Stu Hilborn made famous started with a pair of '24 Chevrolet framerails...
Look above the right front shackle and see if there's a number stamped real light, or on the the passenger seat rail. Looks real DBish to me.
i don't currently have any more photos of this frame. i will have to see if the guy who owns it still has it. i am looking for a mopar frame that would make a good nonchanneled perimeter frame. trying to find a frame where the rails are about 4 inches tall at the tallest point. a 1932 ford frame works out good but i think the frame rails being 6 inches high look out of porportion to a 22 inch high 1926 ford roadster body. i also don't want channel the body and loose interior room. i would Z the front of the frame if i could hide it under the cowl. i think i might have to just build my own frame using 2X4 tubing. i do like the traditiona look of an old frame.
i did not see any logos on the front end or frame rails. the back kickups have been cut off the frame
I don't know either, but I've got it's twin. I think the chevy crowd may be right. I'm thinking I may put it under a '20s chev banger I'm working on. I really like the looks of it. Norm