Correct manifold bolts

[nodemon]

Based on advice previous question I posted, I purchased "correct" bolt kit for my 340 manifolds.. There's one oddball bolt/nut circled. Not sure where to place it... Anyone know..??

Thanks..!

 

[RustyRatRod]

Assuming these are intake manifold bolts, I would say the odd one attaches to the driver's side for the throttle return spring bracket. Just a guess.

 

[Professor Fate]

I believe that's for the later 340 D.S. manifold, retains the later style heat stove
.

 

[nodemon]

Assuming these are intake manifold bolts, I would say the odd one attaches to the driver's side for the throttle return spring bracket. Just a guess.

Sorry... Exhaust manifold..

 

[RustyRatRod]

I believe that's for the later 340 D.S. manifold, retains the later style heat stove
.View attachment 1716360428

I thought the 340 exhaust bolt kit came with the sleeved nuts, like the original.

 

[nodemon]

I thought the 340 exhaust bolt kit came with the sleeved nuts, like the original.

I think certain year 340

 

[RustyRatRod]

I think certain year 340

Obviously that's information we don't need to know. lol

 

[Professor Fate]

I thought the 340 exhaust bolt kit came with the sleeved nuts, like the original.

Yes, the early '68- '72? ish ones did. The later ones didn't use the sleeve nuts.

 

[4spdragtop]

 

[nodemon]

Yes, the early '68- '72? ish ones did. The later ones didn't use the sleeve nuts.

The manifolds I have are 71-73, I believe...and they do not use sleeves..

 

[Professor Fate]

View attachment 1716360447

Yup, those are the early ones.
Later ones look like this:

 

[Professor Fate]

The manifolds I have are 71-73, I believe...and they do not use sleeves..

Okay, I wasn't exactly sure of the year of the changeover. Somewhere in that range! They were also used on the 360 for a few years after the 340 was discontinued.

 

[RustyRatRod]

View attachment 1716360447

Those are the ones I was thinkin of. Thanks, Steve!

 

[RustyRatRod]

The manifolds I have are 71-73, I believe...and they do not use sleeves..

And we finally know. LOL

 

[nodemon]

And we finally know. LOL

So, back to original question...what's the oddball bolt for..?

 

[RustyRatRod]

So, back to original question...what's the oddball bolt for..?

Now that I think about it, I think it's for the dipstick tube.

 

[RustyRatRod]

Naw, the dipstick is in the front so it ain't that.

 

[Professor Fate]

So, back to original question...what's the oddball bolt for..?

As shown in Post 3.
Here. It goes in this hole. The heat stove mounts to the reduced diameter portion of the stud.

 

[Workingdog1]

Drivers front ? Ground wire ?

 

[nodemon]

As shown in Post 3.
Here. It goes in this hole. The heat stove mounts to the reduced diameter portion of the stud.
View attachment 1716360453

I know... I was just making sure @RustyRatRod was paying attention...lol

 

[RustyRatRod]

As shown in Post 3.
Here. It goes in this hole. The heat stove mounts to the reduced diameter portion of the stud.
View attachment 1716360453

Ok, so that holds the bottom portion of the heat shield. Good enough!

 

[nodemon]

I believe that's for the later 340 D.S. manifold, retains the later style heat stove
.View attachment 1716360428

Thanks..!

 

[Vaanth]

Based on advice previous question I posted, I purchased "correct" bolt kit for my 340 manifolds.. There's one oddball bolt/nut circled. Not sure where to place it... Anyone know..??

Thanks..!View attachment 1716360410

The circled bolt attaches the upper part of the heat air stove for the left side B/C/E-body "log" style manifold:

The heated air stove for the A-body left upswept exhaust manifold attaches where shown with a similar bolt:

I believe that's for the later 340 D.S. manifold, retains the later style heat stove
.View attachment 1716360428

The bolt though is different. It has a tall hex with a threaded hole for a bolt:

I don't have a loose bolt of this style to photograph separately.

The 1968-1970 340 exhaust manifold does not use the heated air stove. The later A-body 340 setup looks like this on my 1973 Twister, running a 360:

 

[LM29H2B]

This is the set up that holds the lower heat shield on the 1972 340. I did not use the bolt/stud provided in the kit that you are asking about on my 72 demon.

Jerry

 

[AJ/FormS]

24 posts, for a simple "where does this bolt go?"
I think you guys set a new record.