#1  
Old 03-16-2023, 10:12 PM
necdb3's Avatar
necdb3 necdb3 is offline
Ultimate Warrior
 
Join Date: Jul 2004
Location: Mt. Laurel NJ, now Melbourne, FL
Posts: 1,369
Default 66 YH 421 automatic carb and intake

Who owns a 66 YH motor with the original intake and carb? Looking to see if it has a divorced choke, what carb number, what intake number. Any help much appreciated.

Dave

  #2  
Old 03-16-2023, 10:34 PM
tom s tom s is offline
Ultimate Warrior
 
Join Date: Jan 2000
Location: long beach ca usa
Posts: 18,764
Default

I thought the big cars got AFBs?Tom

The Following User Says Thank You to tom s For This Useful Post:
  #3  
Old 03-17-2023, 08:41 AM
necdb3's Avatar
necdb3 necdb3 is offline
Ultimate Warrior
 
Join Date: Jul 2004
Location: Mt. Laurel NJ, now Melbourne, FL
Posts: 1,369
Default

Quote:
Originally Posted by tom s View Post
I thought the big cars got AFBs?Tom
I believe you are correct but I want to make sure, hopefully from an original car.

  #4  
Old 03-17-2023, 10:29 AM
John Milner's Avatar
John Milner John Milner is offline
Ultimate Warrior
 
Join Date: Nov 2004
Location: Oklahoma
Posts: 1,042
Default

Here is a picture of the original intake/carb that I ran for a while on my 66 YH 421 that I put in my 66 Tempest. The engine came out of a wrecked 66 Catalina. The air cleaner is from a GTO but the intake and AFB carb are correct and original to the engine. The carb number is 4037S. I can take a closer picture of the choke setup if you would like. The choke system has a tube that comes from the heat crossover and goes to the choke stove to heat the choke coil up.
Attached Thumbnails
Click image for larger version

Name:	IMG956130.jpg
Views:	65
Size:	37.5 KB
ID:	608981  

  #5  
Old 03-17-2023, 11:41 AM
tom s tom s is offline
Ultimate Warrior
 
Join Date: Jan 2000
Location: long beach ca usa
Posts: 18,764
Default

typical hot air choke AFB.Tom

Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 03:54 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017