1972 K10 question

[69Tom]

For those who visit the 67-72 C10 section of the forum, you'll know I don't know much about the K series of Chevy trucks. Not doing badly on the C10s, but that's where my knowledge seems to stop.

As I recently picked up a 72 SWB K10 cab (stuck on a LWB C10 frame), I was checking out the 72 brochure for some basic info (I've really only owned 69-70 C10s for some reason).

Is it true a 402 wasn't an option in a SWB K10? The brochure seems to say so. Seems a little weird but thought I'd check.

Also it appears the K trucks wouldn't come with a TH400?

Thanks for the info.