Carb Question - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 03-14-2010, 01:02 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Carb Question

Three questions:

1. What is a Q-jet carb body made of?

2. What is a "traditional" Holley made of?

3. What is the throttle plates of either/both made of?

Thanks in advance for any and all responses. However it may go.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-14-2010, 05:04 AM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage Last photo:
Join Date: Dec 2004
Location: Iowa
Age: 53
Posts: 1,645
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
I always thought the main body's were cast of zinc, and the base plates aluminum on both the Holley and Q-jet.
I have seen stainless steel replacement throttle blades.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-14-2010, 05:36 AM
TroyBoy's Avatar
Psychomotors
 
Join Date: Jan 2006
Location: East Bonne Terre ,Missouri
Age: 49
Posts: 675
Wiki Edits: 0

Thanks: 14
Thanked 9 Times in 8 Posts
I agree with 1ownerT. That is what I've always been told.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-14-2010, 11:19 AM
Registered User
 
Last photo:
Join Date: Nov 2009
Location: no longer here
Posts: 293
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
quadras are aluminum bases , aluminum throttle plates( some are anodized steel ), steel shafts that are chromated or epoxy coated and zamac #2 ( zinc aluminum alloy) tops and centers
holleys are basically the same style of construction , except the early ones which used a iron base . the polished holleys are a zamac with a high aluminum content and a special coating .
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 03-14-2010, 11:28 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
I know the 4010/4011 Holleys are said by Holley to be "aluminum".

If I understand your reference to Zamac or Zamac 2, that is zinc alloy w/4% Al added (3% Cu also added to Z-2), right?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 03-14-2010, 12:52 PM
Registered User
 
Last photo:
Join Date: Nov 2009
Location: no longer here
Posts: 293
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
all I know was it was called zamac , didn't know there where different versions of the alloy , all I know is that they made the alot of the Rg handguns out of it and it would come apart quite easily if it got heated and disolves easily if put in hydrochloric acid thats why certain states outlawed them . the 4011 carbs ( that was the open top right?? ) they had a disolving problem with certain fuels , I had one on a 350 chevelle I built for the ex wife and when I used cheap fuel ( that contained methanol or alot of MBTE ) , it ate the casting from the inside out in three years .
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 03-14-2010, 01:04 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by stimpy
the 4011 carbs ( that was the open top right?? ) they had a disolving problem with certain fuels , I had one on a 350 chevelle I built for the ex wife and when I used cheap fuel ( that contained methanol or alot of MBTE ) , it ate the casting from the inside out in three years .
Yeah, Holley discontinued them and they were picked up by Summit.

Never cared for the one I got in trade (600 CFM 4010)- it required a booster swap to change the shooter size.

The Zamac info I'm going by was from HERE as well as verified elsewhere, so I'm comfortable w/the description above.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Carb Spacer Question Regal Beagle Engine 6 07-18-2008 06:04 AM
Lean problems with BG Speed Demon carb Sixtyninemercury Engine 29 04-16-2008 08:02 AM
Carb question revisited Bob23T Engine 2 10-07-2005 04:32 PM
Barry grant carb air/fuel question Ratoflic Engine 8 05-10-2005 04:51 PM
Holley Carb Question 1965-Mustang Engine 1 10-26-2003 02:44 PM


All times are GMT -6. The time now is 07:58 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.