Did all of the slant 6 engines have the choke wells in the exhaust manifold if ordered with a manual choke, even the big trucks ie: D400- D800? I was curious because some of the big trucks with v-8's and manual chokes do not have choke wells cast into them.

Yes, all slant-6 exhaust manifolds have a choke well or stove - different styles depending on the production date.

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Dan, My Main Man, While you're talking about choke pockets (I don't mean to steal the topic...but), the difference between older style pockets (62) vs newer 2 barrel pockets, does this prevent the use of a newer choke in an old modified pocket?? Is there an easy way out without going to an aftermarket electric choke?? I know it's the way you recommend but I'm half way there now and don't want to think I wasted all that time grinding out the old pocket for nothing.
Thanks.
Joe

The '73+ pocket has the rear wall cut out. There's no difference for 1bbl vs. 2bbl.
I'm sure you can make it fit/work, but the electric choke solution usually works better and is a heck of a lot easier.

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

I've got two different exhaust manifolds, the older one has the choke pocket built right in with the exhaust flange. With the newer one, the pocket is about 3/8's to 1/2" outboard of the flange so the intake/exhaust attaching nut interfers with the choke sheet metal. Does that make sense?? Looking at both pockets there is a visible difference. Could one of these be Chinese???
Joe

'60-'65 used on style of pocket
'66-'69 used another style
'70-'72 had an open choke stove for use with a separate stainless steel cup and gasket
'73+ had a third style of pocket.

I don't think you're dealing with Chinese vs. American here, I think you're looking at two different-year manifolds.

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Dan, The Chinese reference was a joke. So I'm back to your original suggestion that you put out there a long long time ago and that's just to use the aftermarket electric choke. I'm off to the corner for 5 minutes then I'll order a choke.
Thanks for the break down on choke pockets. I'll listen more carefully next time.
Thanks.
Joe