Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum upgrade!
It is currently Tue Jun 18, 2019 2:10 am

All times are UTC-07:00




Post new topic  Reply to topic  [ 8 posts ] 
Author Message
 Post subject: exhaust manifold
PostPosted: Tue Dec 05, 2017 8:27 am 
Offline
3 Deuce Webber

Joined: Wed Mar 18, 2015 10:51 am
Posts: 97
Location: Hastings Ne
Car Model*:
Can I use an early 60s exhaust manifold on my 76 head. I was given a drool tube head with both manifolds and am thinking of upgrading to dutras when I do the trans swap in my truck. I just don't know the compatibility between the two types of heads. I believe the drool tube manifold is a '64 model and was broke and repaired once already. Seems like a good candidate for me to break out the nickel rods and do some cast welding.


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Fri Dec 08, 2017 10:47 am 
Offline
Turbo EFI
User avatar

Joined: Mon May 12, 2008 1:11 am
Posts: 1386
Location: North Georgia
Car Model*:
I've had limited success welding manifolds. I drilled a 1/8" hole at each end of the crack, ground a beveled edge into it, and heated it cherry red with a torch. Then I laid the frap to it with a welder and let it cool on its own. The weld held up for 2 years, and probably longer but I sold the car so I don't know. I've heard others who are much better welders than me say it doesn't work.

_________________
If it was easy, everybody would be doing it.
Image


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Thu Dec 21, 2017 8:19 am 
Offline
3 Deuce Webber

Joined: Wed Mar 18, 2015 10:51 am
Posts: 97
Location: Hastings Ne
Car Model*:
The manifold does not have a crack in it, sorry for the confusion. I want to know if an early 60's exhaust manifold will bolt up to a '76 head without problems. Planning to put dutras on this truck to help with performance. If I have to pull the original manifold and cut it up for this, I will but it would be nice to have a practice piece to test with (welding cast). Is there a rebuild kit for the flap that deflects the exhaust to help warm the carb? If not what would be the best process to make or clean up the the mechanism?


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Thu Dec 21, 2017 11:11 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 13120
Location: Blacksburg, VA
Car Model*:
There should be no compatibility issue with the early and late exh manifolds. If you are trying to use the stock choke opening/stove, then those may be different. Bolting up to the head will be exactly the same.

Lou

_________________
"You mean you still have a Slant 6 in that thing?"


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Thu Dec 21, 2017 6:59 pm 
Offline
3 Deuce Webber

Joined: Wed Mar 18, 2015 10:51 am
Posts: 97
Location: Hastings Ne
Car Model*:
Thanks for the info on compatibility. Now I can get to cutting up that old manifold and get to some practice welding. Been a long time since I have had any real cast welding "fun".

Did not mean the choke stove on the repair though, I was talking about the baffle in the exhaust manifold that is situated under the carb. How is it rebuilt/fixed/lubricated to ensure it works. This old manifold has been sitting for a while and when I get it put on, I want it to work well.

I have also read about opening up the manifold for a 2 1/4" exhaust. Is that achieved with a die grinder and a carbide burr? Just wondering if there is another way? (easier)

Thanks


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Thu Dec 21, 2017 7:54 pm 
Offline
Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 23142
Location: North America
Car Model*:
There used to be manifold heat control valve repair kits containing all the parts needed to rebuild the valve. They have been unavailable for years now, and NOS units are expensive enough that it's better to just buy a complete new manifold. Don't bypass or otherwise disable the valve; it serves a very useful purpose no matter where you live (hot, cold, whatever).

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

Image


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Fri Dec 22, 2017 7:28 am 
Offline
3 Deuce Webber

Joined: Wed Mar 18, 2015 10:51 am
Posts: 97
Location: Hastings Ne
Car Model*:
Thanks Dan


Top
   
 Post subject: Re: exhaust manifold
PostPosted: Fri Dec 22, 2017 7:48 am 
Offline
Turbo EFI
User avatar

Joined: Tue Feb 18, 2003 7:34 am
Posts: 2454
Location: Lubbock, Texas
Car Model*: 1964 Plymouth Valiant V200 Sedan
My '64 is running a manifold from a '62 on a '76 engine. It seems to work fine.

The heat control valve was frozen when I got it, but eventually yielded to a combination of heat, cold, and Chrysler's heat control valve solvent (part number 4318 039AC).

More discussion

_________________
"When you find a big kettle of crazy, it's best not to stir it." - Pointy-haired Boss

1964 Valiant V200, 225/Pushbutton 904
BBD, CAI, HEI, LBP, AC, AM/FM/USB, EIEIO


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 8 posts ] 

All times are UTC-07:00


Who is online

Users browsing this forum: No registered users and 8 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited