Vanning.com logo
Boxdin
Site Navigation


Advertisements
Recent Posts
Good day
by lukester - March 28th 2024 12:26 pm
Crazy mods
by MufflerMan Mike - March 28th 2024 9:38 am
Lew Greger
by MufflerMan Mike - March 27th 2024 5:15 pm
1987 G20 Gypsy
by SDMickey - March 25th 2024 9:39 pm
Featured Links


Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Installing headers
#135618 May 12th 2007 5:12 pm
Joined: Jan 2001
Posts: 91
P
journeyman
OP Offline
journeyman
P
Joined: Jan 2001
Posts: 91
Anything special you have to do when switching from manifolds to a set of headers on a mid-Dodge? I mean, to get them to fit around the engine and transmission properly.
Yeah, I should have maybe started asking these questions before buying the stuff but I guess I thought it was going to be straight-forward unbolt the old, bolt on the new kind of thing.
I got these.


Re: Installing headers
Poopville #135625 May 12th 2007 7:35 pm
Joined: Jan 2005
Posts: 458
addict
Offline
addict
Joined: Jan 2005
Posts: 458
Cool I have never owned this particular brand of headers, but the application listing on summit looks right. Invest in some nice think pliable gaskets. Leave the studs in the block if you can get you headers on with them still in. If you have to remove the end studs from the block.. you may leak coolant ( I did ). Bolt them on... have a blast driving to the exhaust shop with only headers on. grin

-Jess


1977 "Shorty" Dodge Tradesman
318 4bbl - Hurst 4sp Manual OD
Hedders - 30 series Flowmasters

[Linked Image]
Re: Installing headers
arbito #135628 May 12th 2007 7:54 pm
Joined: Apr 2001
Posts: 1,097
old hand
Offline
old hand
Joined: Apr 2001
Posts: 1,097
Use good gaskets. I like Felpro


Take Care, Billy

Have Van Will Travel

Re: Installing headers
Billvill #135629 May 12th 2007 8:11 pm
Joined: Jun 2006
Posts: 1,241
old hand
Offline
old hand
Joined: Jun 2006
Posts: 1,241
On my headers I used allen head bolts. And used a quality
3/8th drive allen socket about 2" long. Made it much easier
to torque them down. This was on my '83 chevy and there
wasn't much room. Good gaskets and good torque should
result in leak free years of service.


https://www.flickr.com/gp/154142337@N08/15982P
Re: Installing headers
Ghetto Rat #135682 May 13th 2007 11:23 am
Joined: Aug 2005
Posts: 21,211
Likes: 25
N
Supreme Master
Offline
Supreme Master
N
Joined: Aug 2005
Posts: 21,211
Likes: 25
When you get the new headers, double-check to make sure the sealing flanges are flat.


Nate Breece
Re: Installing headers
NateB #135703 May 13th 2007 12:41 pm
Joined: Apr 2001
Posts: 1,097
old hand
Offline
old hand
Joined: Apr 2001
Posts: 1,097
Thats good advice . A file across the flanges makes them seal much better.


Take Care, Billy

Have Van Will Travel

Re: Installing headers
Billvill #135716 May 13th 2007 2:27 pm
Joined: Jan 2001
Posts: 91
P
journeyman
OP Offline
journeyman
P
Joined: Jan 2001
Posts: 91
Thanks for all the advice!
One other thing... on the passenger-side manifold there is some sort of doorknob-looking thing. Not sure what it is, some sort of valve? Anyway, is this thing really necessary? It appears that I will lose it when I ditch the manifolds. Will it matter?

Re: Installing headers
Poopville #135729 May 13th 2007 5:40 pm
Joined: Mar 2007
Posts: 4,463
Likes: 12
pooh-bah
Offline
pooh-bah
Joined: Mar 2007
Posts: 4,463
Likes: 12
That's called a manifold heat control valve. Now you're getting into the conflict territory between performance vehicles and daily drivers... that device is supposed to help an engine's cold starting and warm up.

When cold, that valve directs heated exhaust gas to the heat chamber under the base of the carburetor in the stock intake manifold. The extra heat helps vaporize the mixture during cold starting.

Have you ever seen the small crossover passage in the intake manifold where the EGR valve attaches, and which always accumulates carbon? (you're supposed to clean it out every 40,000 miles or so) That's where the exhaust gas passes. There's actually fins cast into the chamber under the carburetor to help soak up the heat from the exhaust gas as it passes.

By removing the heat riser valve you may make the engine run rougher during start and warm up, or it may not have as stable an idle when cold since the mixture won't vaporize as thoroughly.

Good luck!



-It's been such a LONG TIME... BlueShift>> 1981 Dodge Ram B250 Custom Sportsman Maxi Van


[Linked Image]

It's what you learn after you know it all, that counts...

Are you living to work, or working to live?

[Linked Image]

Learning from my own mistakes is good, learning from yours would be much better! [Linked Image]
Re: Installing headers
Ram4ever #136190 May 16th 2007 7:37 pm
Joined: Jan 2001
Posts: 91
P
journeyman
OP Offline
journeyman
P
Joined: Jan 2001
Posts: 91
Well, 3 days of working in my spare time and they're still not done. I thought this morning would be the finish but when I started it up, it was super-loud and there was smoke coming from under the hood. Didn't really have time to figure out where the leaks were, there was just enough time to walk to work.
I had done the best I could installing but the way the pipes were curved, a couple of the bolts were impossible to get at with a socket so I had to do them with a crecent and I think I maybe didn't tighten them quite enough? Or the gasket sucked? Or the headers just didn't fit right? Maybe I need some kind of gasket sealer? I don't know but it's frustrating.

Page 1 of 2 1 2

Moderated by  Astro, nautic1, Ram4ever 

Link Copied to Clipboard
Donate


Upcoming Events
discovery
Who's Online Now
0 members (), 18 guests, and 4 robots.
Key: Admin, Global Mod, Mod
Newest Members
TheDrunkenGunsmith, Jac, LOVclassics, ZenMuffin, Milkman530
12724 Registered Users
Top Posters (30 Days)
SDMickey 125
CatFish 25
frscke1 25
Wedgy 21
Forum Statistics
Forums68
Topics35,746
Posts537,916
Members12,725
Most Online177
May 8th, 2013

Powered by UBB.threads™ PHP Forum Software 7.7.4