Yup. Indian 4.

Indian Four and an '36 Knucklehead, the 2 bikes i'd love in my garage.

Love those four long exhausts.

This one would be a 1940. 1928-1942.

Love to hear running

I saw that bike some where on net last 2 days . organ pipes or some damn thing .  one of those big cowboy actors back when had a similar set up .
check out parker indian , every now and then jim has fours . 1 was found leaning against a gum tree so guess the price was $0 then on a pallet it was Au$50k

they were still inlet over exhaust , over head oiling was just by misting not forced . HD stopped ioe with JD 1929