Re: Odd K-37 question.

The folio doesn't specify boiler length, but does list this:

Firebox size, inside--102 1/8" x 65 3/4"
Tubes, 2" Dia., No (engines with syphons [491]--173, engines without syphons--183)
Flues, 5 1/2" Dia., Number--30
Flues, Length over sheets 14'2"
Grate Surface, Sq. Ft.--46.6

then
H.S. Syphons --Sq Ft. 46
H.S., Arch Flues, Sq Ft--30
H.S. Firebox, Sq Ft--173
H.S. Tubes (with syphons Sq. Ft 1,275, engines without syphons Sq. Ft.1,248)
H.S. Flues, Sq. Ft.--608
H.S. Total, Eng, with Syphons Sq. Ft.--2100
H.S. Total, Eng. without Syphons Sq Ft 2159
Superheaters surface Sq Ft 495

Maybe this is of assistance, The 493 was brought by lowboy trailer from Alamosa to Durango in 2 loads (see [www.flickr.com]) , and that includes a trip over Wolf Creek Pass.