#21  
Old 10-04-2021, 10:22 AM
"QUICK-SILVER" "QUICK-SILVER" is offline
Ultimate Warrior
 
Join Date: Feb 2008
Location: LaFayette Georgia
Posts: 5,512
Default

Quote:
Originally Posted by Bruce Meyer View Post
You wouldn't happen to know what part # those spreadbore bowls are.
Which type bowls/s are you looking for?

Looks like Holley only has replacement for front single line.

https://www.holley.com/products/fuel.../parts/134-110

And you can still get the 6210 new.

https://www.holley.com/products/fuel...t/parts/0-6210

The obsolete dual line conversion kit for these was Holley PN # 34-4.

Clay

  #22  
Old 10-04-2021, 12:02 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,294
Default

1) I still see lots of Holley used carbs at swap meets in the $15 to $35 range.
Most are slightly used but still very good ZINC parts on them.

Holley went from Zinc material Carbs to Aluminum Material Carbs.
Zinc plating will last for many years without issues. A friend of mine who worked
at Holley, with me, still does some "re-plating" using proper chemicals but not
OSHA approved.

But the key deal is that aluminum carbs do not last. Great for a Big Name carb seller.
More sales, cheaper costs, more profits.

Personally I would pay any day to acquire a couple of used Swap Meet Zinc Carbs,
and run them as is or have them plated. Then you have a lifetime carb.

The good Gaskets are still out there, I have hundreds of the good BLUE bowl gaskets
for the 4150 carbs. 4165 and 4175 carb parts (gaskets) much less.

Not a sales pitch. Rarely sell carb rebuild kit parts.

Just saying. The old stuff was calibrated by Carb Engineers who had tons of Carb knowledge.
Mike Urich, Chief Engineer, and book writer being one of them. Mike was a good guy.

So my post here is a carb information post, not specific to this discussion on Spread Bore Holley Carbs.

Tom V.

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.

Last edited by Tom Vaught; 10-04-2021 at 12:13 PM.
The Following User Says Thank You to Tom Vaught For This Useful Post:
  #23  
Old 10-04-2021, 01:50 PM
Bruce Meyer's Avatar
Bruce Meyer Bruce Meyer is offline
Ultimate Warrior
 
Join Date: Dec 2001
Location: Phoenix, Az
Posts: 1,385
Default

Quote:
Originally Posted by "QUICK-SILVER" View Post
Which type bowls/s are you looking for?

Looks like Holley only has replacement for front single line.

https://www.holley.com/products/fuel.../parts/134-110

And you can still get the 6210 new.

https://www.holley.com/products/fuel...t/parts/0-6210

The obsolete dual line conversion kit for these was Holley PN # 34-4.

Clay
Im looking for the race bowls. It looks like Holley discontinued them for the spreadbores.

  #24  
Old 10-04-2021, 03:00 PM
SRR's Avatar
SRR SRR is offline
Ultimate Warrior
 
Join Date: Sep 2005
Location: San Diego, California
Posts: 1,225
Default Uh...

Quote:
Originally Posted by Tom Vaught View Post
I and Cliff Ruggles would disagree with you on his 850 cfm Holley Carb with the 50cc pump on the carb ON THE FRONT.

In some applications if you add the 50cc pump and open up the air bleeds on the primary side of the carb about .004" the set-up is happy with the 50cc pump on the front. I helped Cliff with his carb.

The KRE guys dynoed that Holley carb and they told Cliff:
"Don't touch that carb it is perfect on the dyno."

Tom V.
I was talking about the 650 the OP posted the link to.

"Holley Carburetor List 6210 Spread Bore 650 cfm Double Pumper dated 3343"
Attached Thumbnails
Click image for larger version

Name:	s-l1600.jpg
Views:	100
Size:	32.7 KB
ID:	574404  

__________________
“Nothing in the world can take the place of persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. The slogan Press On! has solved and always will solve the problems of the human race.”
― Calvin Coolidge
  #25  
Old 10-04-2021, 04:02 PM
NeighborsComplaint's Avatar
NeighborsComplaint NeighborsComplaint is offline
Ultimate Warrior
 
Join Date: Aug 2009
Location: Elgin
Posts: 2,468
Default

Quote:
Originally Posted by JSchmitz View Post
You can probably still get a 650 with side hung bowls. The carb that Tom showed has not been available for a long time. Still lots to be had if you don't mind going through one.
Yeah, they're "only" around $750 too.

__________________
Triple Black 1971 GTO
  #26  
Old 10-04-2021, 07:30 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,294
Default

Quote:
Originally Posted by SRR View Post
I was talking about the 650 the OP posted the link to.

"Holley Carburetor List 6210 Spread Bore 650 cfm Double Pumper dated 3343"
OK Thanks.

Quote:
Originally Posted by NeighborsComplaint View Post
Yeah, they're "only" around $750 too.
Those carbs at one time sold new for well under $300 at speedshops.

Tom V.

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
  #27  
Old 10-05-2021, 12:35 PM
Old Goat Racer's Avatar
Old Goat Racer Old Goat Racer is offline
Ultimate Warrior
 
Join Date: Nov 2004
Location: Southern ILLINOIS
Posts: 3,408
Default

About 20 years ago I bought a holley 650 spreadbore for my TA. Paid a little over $200 for it. Now they are $700.

__________________

3 Generations of "Beach Boys Racing" !

Everybody knows somthin.
Nobody knows everything !


1st time on a dragstrip, 1964. Flagstart !

"Thanks for the entertainment."

"Real Indians Don't Wear Bowties"
  #28  
Old 10-05-2021, 05:00 PM
NeighborsComplaint's Avatar
NeighborsComplaint NeighborsComplaint is offline
Ultimate Warrior
 
Join Date: Aug 2009
Location: Elgin
Posts: 2,468
Default

Quote:
Originally Posted by Tom Vaught View Post
OK Thanks.



Those carbs at one time sold new for well under $300 at speedshops.

Tom V.
Yeah. Around $750 new these days for the 650. Yikes.

No new 800's.

__________________
Triple Black 1971 GTO
  #29  
Old 10-05-2021, 06:49 PM
lust4speed's Avatar
lust4speed lust4speed is offline
Ultimate Warrior
 
Join Date: Jul 2002
Location: Yucaipa, SoCal
Posts: 8,684
Default

In about 1974 my original Quadrajet died a premature death and I went down to the local speedshop to locate a replacement. Purchased a new 800 CFM double pumper Holley spreadbore on sale for $76 and tax. Don't remember why but he had a massive stack of them and must have got a deal on them from Holley. Ran it for the next 25 years until I went back to a Quadrajet, and probably the most trouble free Holley I ever ran.

__________________
Mick Batson
1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress.
  #30  
Old 10-05-2021, 07:37 PM
Gary H's Avatar
Gary H Gary H is offline
Ultimate Warrior
 
Join Date: Feb 2002
Location: Jacksonville
Posts: 1,320
Default

The 800 spreadbore was/is a great carb. It's bizarre that Holley stopped making them. With all the GM cars out there that want to run the original style cast iron intake, I would think there is more than enough demand for them.

__________________
62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs
  #31  
Old 10-05-2021, 07:53 PM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,294
Default

After going Bankrupt 3 times Holley Carburetor is not the same company that made the excellent 650 and 800 spread bore carbs of the old days.

Their EFI stuff is doing well because NASCAR is using some of their stuff on the cars.
And the EFI stuff is pretty darn good for a moderate cost EFI system.
MOTEC and the other high end stuff being better in my opinion but only for cubic money type vehicles (think land speed record platforms).

That being said there is little that is the same on the calibrations.
The old calibrations for the majority of the "Chevy bolt on carbs" was paid for by GM Engineering paying Holley to do the
calibration work.

Most of the casting work has been farmed out to the offshore countries C*ina

Tom V

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
  #32  
Old 10-05-2021, 08:10 PM
PAUL K's Avatar
PAUL K PAUL K is offline
Ultimate Warrior
 
Join Date: Feb 2004
Location: Sugar Grove IL USA
Posts: 6,282
Default

Quote:
Originally Posted by Tom Vaught View Post
After going Bankrupt 3 times Holley Carburetor is not the same company that made the excellent 650 and 800 spread bore carbs of the old days.

Their EFI stuff is doing well because NASCAR is using some of their stuff on the cars.
And the EFI stuff is pretty darn good for a moderate cost EFI system.
MOTEC and the other high end stuff being better in my opinion but only for cubic money type vehicles (think land speed record platforms).

That being said there is little that is the same on the calibrations.
The old calibrations for the majority of the "Chevy bolt on carbs" was paid for by GM Engineering paying Holley to do the
calibration work.

Most of the casting work has been farmed out to the offshore countries C*ina

Tom V
So true!

__________________
Go fast, see Elvis!
www.facebook.com/PaulKnippensMuscleMotors
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 04:08 PM.

 

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