6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > GMC V6 and V12 Engines


GMC V6 and V12 Engines Engine repair and rebuilding

Reply
 
Thread Tools
  #1  
Old July 14th, 2021, 07:37 PM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 20
Rep Power: 32
bostru is on a distinguished road
Default 305A carburetor

Is there a good alternative to the Holley 1904 on the 1960 305A or is there a source for rebuilt units or a reputable rebuilder someone has used ? I can find 1904's but the throttle body on the units for the 305 A is different. Thanks
Reply With Quote
  #2  
Old July 14th, 2021, 09:41 PM
Funky61's Avatar
Funky61 Funky61 is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Corona, CA
Truck: 1961 Suburban 1962 GMC Utility
Posts: 1,005
Rep Power: 339
Funky61 is a jewel in the roughFunky61 is a jewel in the roughFunky61 is a jewel in the roughFunky61 is a jewel in the rough
Default Re: 305A carburetor

I bought a kit to rebuild my Stromberg from Mike's Carb Parts and it had everything I needed. I have not had any carbs rebuilt by him so I can't speak to that.

I see he lists a universal replacement carb for a 1904 Holley. It is pricey ($399 on sale), and he also sells kits if you wish to rebuild your own, or he can do it for you.

*There is a section on his webpage that states that there are some items for the carb he does not carry, like the Float. he advises buying another carb for parts.

The carb below has 4.8 rating overall listed on the site. He also has 4 Part series on rebuilding the Holley 1904 on YouTube.

https://www.carburetor-parts.com/190...04_p_3141.html
Attached Images
File Type: jpg Holley 1904 replacement carb.jpg (74.9 KB, Multiple views, 2 clicks)
__________________
1961 GMC Suburban 305A Overdrive
1962 GMC Utility 305D
Reply With Quote
  #3  
Old July 14th, 2021, 10:55 PM
AZKen's Avatar
AZKen AZKen is offline
-= Dues Paid =-
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,285
Rep Power: 398
AZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the rough
Default Re: 305A carburetor

I'm confused: You asked if there is an "alternative" to 1904. This means you may open to a non original carburetor. But you also said you can find 1904's but the throttle body is "different". What about it is different that it can't be used? I also don't know what trouble you are having? Do you have a 1904 now? and is it giving you trouble?

If you have a 1904 that you suspect needs rebuilt, Funky is RIGHT ON, contact Mike's carburetor, give them the 1904 number and either get a kit or send for rebuild. He answers any question by email. He is a really great guy. He probably has a video on the 1904 rebuild.

The 1904 is only a one barrel carb. Parts are getting rare. The glass front is hard to find. It may be an easy good idea to switch to a WW Stromberg which is a good two barrel carb used on/designed for 305 V6's. There's your alternative. There are others, some require some fab and doubtful advantage.

Last edited by AZKen; July 14th, 2021 at 11:55 PM.
Reply With Quote
  #4  
Old July 15th, 2021, 03:01 AM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 20
Rep Power: 32
bostru is on a distinguished road
Default Re: 305A carburetor

I am familiar with Mikes and have seen his videos ,good information The throttle body on the 1904 on the 305A is larger than most 1904s which were used on smaller engines. The float bowls are the same however . I was looking for a more modern carb that might be better than the 1904 that would be an easy replacement . Have had many cars with 1904s just throwing it out there to see if someone might have used something else .,not looking for a big project . Thanks
Reply With Quote
  #5  
Old July 15th, 2021, 03:28 AM
AZKen's Avatar
AZKen AZKen is offline
-= Dues Paid =-
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,285
Rep Power: 398
AZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the rough
Default Re: 305A carburetor

Quote:
Originally Posted by AZKen View Post

It may be an easy good idea to switch to a WW Stromberg which is a good two barrel carb used on/designed for 305 V6's. There's your alternative.
You just need a little newer 305 intake manifold, easy to find and install. Buy a WW, east to find and install. Not much work.
Reply With Quote
  #6  
Old July 15th, 2021, 03:59 AM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 20
Rep Power: 32
bostru is on a distinguished road
Default Re: 305A carburetor

thanks for the info
Reply With Quote
  #7  
Old July 15th, 2021, 04:49 PM
Jim A Jim A is offline
Member
 
Join Date: Jan 2013
Location: Potter Valley, CA
Truck: 1960 3/4, 4 spd, stepside
Posts: 62
Rep Power: 70
Jim A is on a distinguished road
Default Re: 305A carburetor

The 1904 Holley that came stock on the 305 A is a wonderfully simple and reliable carb.
It may not be the most economical or highest performing one that can be found and installed, but it is easy to rebuild and adjust.
I have never seen one with a glass float bowl, if that is what Ken means by "front."
I am also surprised that a "newer" 305 intake manifold can be described as easy to find and install.
Reply With Quote
  #8  
Old July 15th, 2021, 05:49 PM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 20
Rep Power: 32
bostru is on a distinguished road
Default Re: 305A carburetor

I agree simple and easy to adjust however leaking float bowls are a problem with these carbs because of warpage from over tightening the float bowl cover as described on Mike's carburetor website. Thanks
Reply With Quote
  #9  
Old July 21st, 2021, 08:28 PM
AZKen's Avatar
AZKen AZKen is offline
-= Dues Paid =-
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,285
Rep Power: 398
AZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the roughAZKen is a jewel in the rough
Default Re: 305A carburetor

From Mike's carburetors website:

The Holley 1904 is a 1 barrel, downdraft carburetor and has three basic parts, the main body, throttle body and the float bowl. The main body includes the metering block, float and the economizer. The float bowl mounts on the front of the carburetor and can be metal, or glass. The glass bowl is becoming a rare piece to find, undoubtedly because they are so easy to break and they are not made any more.
Reply With Quote
  #10  
Old July 21st, 2021, 09:15 PM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 20
Rep Power: 32
bostru is on a distinguished road
Default Re: 305A carburetor

Thank's , I have read the info on his website in the past . Is there any info out there regarding differences in the metering bodies on these carbs interchangeability etc.? Mike's could not help with that. Just got some gaskets from Mike's today. Trying to remedy the float bowl leak.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Carburetor help bsimm General Discussion 1 April 17th, 2021 03:15 PM
Re: Do you use sealant on your carburetor? Archiver Previous Forum Posts 0 July 16th, 2007 01:23 AM
Re: Do you use sealant on your carburetor? Archiver Previous Forum Posts 0 July 15th, 2007 02:07 PM
Do you use sealant on your carburetor? Archiver Previous Forum Posts 0 July 15th, 2007 07:13 AM
carburetor Archiver Previous Forum Posts 0 July 20th, 2002 01:33 AM


All times are GMT +1. The time now is 04:27 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 821634778630|1633663661|0
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.