Detrmine which Holley I have? - 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 12-28-2008, 10:08 AM
Registered User
 
Join Date: Jul 2007
Location: Md.
Posts: 65
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Detrmine which Holley I have?

I have a Holly spread bore mechanical secondaries on a SBC How can I tell what it is?I,ve taken some # of the base and body but don,t know it that will help.I,ts not a double pumper.6R4237B 12R-5395B

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 12-28-2008, 11:01 AM
1952_Chevy_Panel's Avatar
Money pit
 
Last photo:
Join Date: Oct 2005
Location: Dalton, GA
Age: 26
Posts: 77
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by david ahluwalia
I have a Holly spread bore mechanical secondaries on a SBC How can I tell what it is?I,ve taken some # of the base and body but don,t know it that will help.I,ts not a double pumper.6R4237B 12R-5395B
How about a number on the choke horn?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 12-28-2008, 12:11 PM
Registered User
 
Join Date: Nov 2007
Location: utah
Posts: 416
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
It may be an "economaster". I think that they were the only non double pumpers with mechanical secondaries. They are a small 450 cfm quadrajet replacement that look more like a quad than a classic holley and are supposed to be great for mileage. Does that sound like what youve got?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 12-28-2008, 07:20 PM
Registered User
 
Join Date: Jul 2007
Location: Md.
Posts: 65
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Re holley

I,d be surprized if its a 450cfm It looks big like a most Holleys as I know them.But I,ve been out of it for a while.Its large has two bowl and metering block .front and back.One fuel inlet in the front
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 12-28-2008, 07:29 PM
johnsongrass1's Avatar
Race it, Don't rice it!
 
Last photo:
Join Date: Jul 2002
Location: Columbia, Mo
Age: 37
Posts: 4,078
Wiki Edits: 0

Thanks: 0
Thanked 9 Times in 9 Posts
Square bore right? measure the distance between adjacent bores and I can tell you.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 12-28-2008, 07:32 PM
Registered User
 
Join Date: Jul 2007
Location: Md.
Posts: 65
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chock Horn

I looked on the chock horn found LIST 6210-3 1318 mean anything to anybody?
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 12-28-2008, 07:58 PM
johnsongrass1's Avatar
Race it, Don't rice it!
 
Last photo:
Join Date: Jul 2002
Location: Columbia, Mo
Age: 37
Posts: 4,078
Wiki Edits: 0

Thanks: 0
Thanked 9 Times in 9 Posts
4165, 650 cfm
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 12-28-2008, 08:03 PM
Registered User
 
Join Date: Jul 2007
Location: Md.
Posts: 65
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Spread bore

I looked down the carb the secondaries are much larger than the primaries ,that makes it a spread bore?Also when I open the thottle all the way While not running the secaries open and fuel is squirted from the rear into the secondaries makes it a double pumper? The # googled out to be 650cfm? I think seems like ther is mixed opinoin on these carbs.Thanks for your help like I said Ive been a tech in a dealership for 20 plus years but been 20 plus scince I tinkered.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 12-28-2008, 10:43 PM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,651
Wiki Edits: 0

Thanks: 2
Thanked 80 Times in 73 Posts
Spread-bore Holley

I have used them in the past and liked them,they work best on intakes that are made for Quadrajet style Carbs,I am not a big fan of adapters to use wth them recently these carbs have fallen out of favor,I have a clean one for sale with a new Trickit,no takers in 3 months and it was priced LOW.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 12-29-2008, 11:20 AM
Registered User
 
Join Date: Nov 2007
Location: utah
Posts: 416
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That would be a double pumper. They are a bolt on replacement for the q-jet and are supposed to outperform them in many ways, I doubt if they would match a q-jet for mileage though. Lots of good reviews on the webb about them, the jets and power valves are the same as other holleys but all else is different.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 12-29-2008, 11:49 AM
JeffB's Avatar
Registered User
 
Last photo:
Join Date: Jul 2006
Location: Phoenix,AZ
Age: 68
Posts: 1,651
Wiki Edits: 0

Thanks: 2
Thanked 80 Times in 73 Posts
Spread-bore Holley

Some of them are also single pumpers,also Dodge used them in some of the motor home chassis.The single pumpers with vacuum secondaries are more fuel friendly and easier to tune than Quadrajets.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Holley Carb FUN (for Barry Grant Guy also) PutPut72 Hotrodders' Lounge 21 10-24-2008 09:35 AM
That lousy Holley carb cool rockin daddy Engine 30 02-29-2008 02:01 PM
Holley throttle body Kevin45 Engine 1 06-10-2005 11:46 AM
Carb comparison Demon vs Holley DTL504 Engine 12 12-29-2004 02:53 PM
MSD offroad-6, MSD 8366 Distributor, Holley 950 ECU izord Electrical 0 09-06-2004 02:16 PM


All times are GMT -6. The time now is 11:20 PM.


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.