cylinder head heat passage - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 10-10-2002, 05:06 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 34
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post cylinder head heat passage

Anyone know of a non permanent way to block of the heat passages in the heads????The only way I know of is w/ epoxy.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 10-10-2002, 05:13 PM
4 Jaw Chuck's Avatar
Hotrodders.com Moderator
 
Last photo:
Join Date: Mar 2002
Location: Manitoba, Canada
Age: 46
Posts: 4,817
Wiki Edits: 0

Thanks: 0
Thanked 62 Times in 50 Posts
Post

Tap the hole for a pipe plug, most passages are already tap drill size for a 1/4 NPT pipe plug. Just be sure to use stainless or steel recessed Allen head hydraulic pipe plugs. They last the longest and are the thickest.
__________________
Outlawed tunes from outlawed pipes
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-10-2002, 05:27 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 34
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post

How would you do that???The passages are rectangle shaped were they meet the intake.This is a SBC just so ya know.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-10-2002, 05:51 PM
crshrmn3's Avatar
Member
 
Join Date: Aug 2002
Location: OH
Age: 41
Posts: 129
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

I had asked about this not to long ago and got some good replies on the subjust. Do a search for "exhaust crossover", dated Sept. 16, 2002

http://www.hotrodders.com/cgibin/ubb...&f=15&t=001625

[ October 10, 2002: Message edited by: crshrmn3 ]</p>
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 10-10-2002, 06:13 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 34
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post

Thanks for the link man.I never knew they made block off gaskets.An hey theres allways tinfoil balls.Anyay have you noticed how far into the plenum the passages on the performer intake go.I've noticed that my motor is very sensitive to heat.65deg day it overpowers the tires for ever.80+deg day it can't break loose and won't pull.I don't have a choke or egr so I figured what the hell is the sense.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 10-10-2002, 08:26 PM
4 Jaw Chuck's Avatar
Hotrodders.com Moderator
 
Last photo:
Join Date: Mar 2002
Location: Manitoba, Canada
Age: 46
Posts: 4,817
Wiki Edits: 0

Thanks: 0
Thanked 62 Times in 50 Posts
Post

I thought you might be referring to the end passages like on a Ford. Just remember that if you block them completely cold weather driveability goes to he11. Doesn't NY get some cold weather?

The gaskets with blockoffs work well...for a while. Seems they last a few years and then rot out, an intake that has no passage is the best option or welding up your passages in the intake is the best solution, or you could just replace gaskets every few years. If you have ever had a carb ice up before you might want to reconsider if you drive it in anywhere near freezing temps.
__________________
Outlawed tunes from outlawed pipes
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 10-11-2002, 05:27 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 34
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post

[quote]Originally posted by 4 Jaw Chuck: (QB)Just remember that if you block them completely cold weather driveability goes to he11. Doesn't NY get some cold weather?(QB)[/qb]<hr></blockquote>

They say here if you don't like the weather stick around 15min.The weather changes so much that its almost something out of a steven king movie.

As far as the block offs I don't care about the cold weather drive ability I only drive it from Mar-Oct.Also seems to run best ice cold I ran itr one year in the winter ith no thermostate run likea raped ape.

[ October 11, 2002: Message edited by: 78 monte ]</p>
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 10-15-2002, 09:02 PM
Member
 
Join Date: Oct 2002
Location: Upstate NY
Posts: 93
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

thanks for a great thread, and reference, all - I just got a 74 firebird, the torquemonkey who had it before me blocked off the heat passages with sheet steel, a cork sheet, and a 3/8 steel plate. why, i have no idea, but now I at least know why and what it does for performance. (yeah, i'm a little new to this). and 78 monte, you in upstate NY? we have the same weather (and driving season) up here.
hope I didn't offend anyone, good luck to all, i'll be back often with annoying questions and comments.
can't help it, the information's good.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 10-16-2002, 06:40 AM
Quepas00's Avatar
Member
 
Join Date: Sep 2002
Location: Corona, CA
Posts: 68
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

All you need is a piece of 24 ga. stainless steel. Cut it about a 1/2" wider than the hole and about 1" taller. Bend a 1/4" tab at 90 deg. on top and slip it in between the gasket and the manifold. The tab will keep it in place while you tighten manifold.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 10-16-2002, 05:12 PM
Member
 
Join Date: Oct 2002
Location: Upstate NY
Posts: 93
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

thanks for the idea, the problem is that the manifold itself has no heat passages. It was sold to me as a torker II, which it's clearly not (no markings, and it only has 4 branches, instead of being a solid block. aluminum, looks like good airflow, though. anyone know what this might be, by the way?)... so the heat passages don't have any part of the manifold to seal against, even with steel over them. I was thinking of getting some aluminum to screw down over the passages and over the gasket... any ideas? thanks, by the way
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 10-16-2002, 06:26 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 34
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post

Stepinwolf were in NY?????Gotta love the weather rains 4days a week,105deg 1day a week then cloudy the other two.Did you get to drive your car on the 3 good days we have a year????No really,it wasn't a bad summer can't complain but spring(monsoon season) sucked.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 10-16-2002, 07:56 PM
Member
 
Join Date: Oct 2002
Location: Upstate NY
Posts: 93
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

rochester - isn't spring always monsoon season here? nasty rain today too.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 10-16-2002, 08:08 PM
E.T. divided by $ spent= Speed
 
Last photo:
Join Date: May 2002
Location: NYS america's unwiped butt
Age: 34
Posts: 1,858
Wiki Edits: 0

Thanks: 0
Thanked 5 Times in 5 Posts
Post

Your a ways away from me but not too far out ,three hours or so.Yea rained like a bastard here today my heater box still leaks so I think I'll go swimming tomarrow on my floor mat befor work.Ain't there a 1/10mi Dragstrip up youir way called Apple Valley???Think I went there once as a kid w/ my uncle when he had his drag car.

P.S.Either way go to Nick Tahoes's and get me a Garbage Plate and send it UPS ovenight air.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 10-17-2002, 01:34 PM
Member
 
Join Date: Jul 2002
Location: Houston, Tx
Posts: 176
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

There are no markings on it at all? Someone must've altered a Torker or a Holley Street Avenger. On Pontiacs they are both a raised "X" pattern. I just got a Holley Street avenger that someone completely removed the heat crossovers from the flange that mounts to the head all the way across under the "X". I makes it look like an Air Gap manifold or something, but it still says street avenger on it. Is the mounting flange a square or more like a quadrajet opening? I got lucky, I jsut have to use a piece of steel plate to block the hole through the mounting flange.

You do NOT want to sandwich the metal bewteen the intake and gasket!!!! You have to cut the gasket where the plate is gonna go and use high temp RTV to seal the plate. If the plate is sandwiched between the gasket and manifold or head it will have an effect on sealing of your intake runners.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 10-17-2002, 01:35 PM
Member
 
Join Date: Jul 2002
Location: Houston, Tx
Posts: 176
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Oh, yeah....THANK GOD I live in Tx and can drive the car year round without worry of icing!!!
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 11:16 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.