Has cast in rocker stands. Likely Indy 426-1 heads. The SR and HiPo have an Indy logo in the middle of the head. Not sure about the others.

http://indyheads.com/images/18.cat2014.pdf

My SRs with the Indy Logo and no cast in stands:

[Linked Image]Untitled by Greg Ault, on Flickr