![]() |
![]() |
#1 |
Registered User
Join Date: Jun 2005
Location: Redcliff Alberta
Posts: 46
|
Factory Holley ?
Our 1969 GMC has a factory 396 and on top is a holley carb. My grandfather bought it in '71. I was just wondering if it was possible for it to be factory, and if so any idea on how many cfm?
|
![]() |
![]() |
![]() |
#2 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
|
Re: Factory Holley ?
some how i dought it..but whats the list number on the air horn?
i will look it up ![]() |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Apr 2003
Location: NB
Posts: 3,367
|
Re: Factory Holley ?
I once had a holley I swear it was factory. I drank alot too though.
I am interested in this one
__________________
1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Jul 2006
Location: Buffalo Park
Posts: 75
|
Re: Factory Holley ?
My 1969 GMC Service Manual lists only Bendix-Stromberg, and Rochesters. The Bendix-Strombergs were used on the 305 V6's and Rochester for all other applications. The 396 should have a #7029214 Quadrajet.
From my past experience, Hollys were used only on 366's and 427's on large trucks.
__________________
"Common sense is very uncommon" Rudyard Kipling |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Jun 2005
Location: Redcliff Alberta
Posts: 46
|
Re: Factory Holley ?
The thing is that it has been in my family sice it was 2 years old and the original owner said he didnt change anything. But then again we looked underneath the truck and it has a pair of purple hornys for the mufflers.
|
![]() |
![]() |
![]() |
#6 | |
Senior Member
![]() Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,865
|
Re: Factory Holley ?
Jake60 says:
Quote:
__________________
'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, 2nd owner, Work-Truck supreme. Best $300 I ever spent. |
|
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
|
Re: Factory Holley ?
Is your Holley a spreadbore carb?
__________________
Tim |
![]() |
![]() |
![]() |
#8 |
RIP Mr Ron
![]() Join Date: Dec 2005
Location: Big Sandy, Tn. 38221
Posts: 8,166
|
Re: Factory Holley ?
I have a carb that came off a 350 sb Chevy. It was a 1973 year model and it is shaped like a quadrajet but has Holley stamped on it. I haven't owned the truck in 20 years but I still have the intake and carb. Will take a picture or two when it warms up a little. I'll try to even find a number on it too. I've had more than one "expert" leave shaking their heads.
__________________
Ron (Mr Round Tuit) ![]() Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket |
![]() |
![]() |
![]() |
#9 |
20' Daredevil (Ret)
![]() Join Date: May 2003
Location: Jefferson State
Posts: 13,621
|
Re: Factory Holley ?
When I bought my new '69 El Camino with the 396/375hp engine, it came with a Holley (800 cfm, iirc).
Ron, I know Holley had an aftermarket spreadbore replacement for Q-jets, but am not aware of any o.e.m. applications.
__________________
- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
![]() |
![]() |
![]() |
#10 |
Registered User
Join Date: Jun 2005
Location: Redcliff Alberta
Posts: 46
|
Re: Factory Holley ?
here are some pics of it
|
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Apr 2003
Location: NB
Posts: 3,367
|
Re: Factory Holley ?
sweet. What a beast of a carb
good set up for rebuild way to go on the pics |
![]() |
![]() |
![]() |
#12 |
Registered User
Join Date: Dec 2004
Location: Northern AZ
Posts: 7,271
|
Re: Factory Holley ?
I have a couple of the speadbore holleys just like that. I would doubt that it is stock, but Chevy and Holley had a relationship, as in Muscle cars and Holleys went hand in hand, but not on a truck. That might have come from a stock application vehicle and was then bolted on there, clean it up, put a kit in it and drive it, it doesn't matter if it is stock or not!
|
![]() |
![]() |
![]() |
#13 |
Registered User
Join Date: Jul 2001
Location: North Louisiana
Posts: 4,501
|
Re: Factory Holley ?
Interesting. My friend is in the process of buying a "all original" '70 GMC with a big block that is said to have the original Holley on it too. I haven't seen it yet, but if it does, I'll snap some pics to compare.
__________________
Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com |
![]() |
![]() |
![]() |
#14 |
Registered User
Join Date: Sep 2005
Location: 9000' Mountain Man
Posts: 326
|
Re: Factory Holley ?
Holly sold truckloads of speadbores in the 1970's as a bolt on replacement of the Q-Jet to those who didn't know anything about carburetion. They ran good but I couldn't ever see any difference except for the decrease in fuel milege. I'm sure they were never installed at the factory.
Last edited by jacobs; 01-26-2007 at 10:03 PM. |
![]() |
![]() |
![]() |
#15 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
|
Re: Factory Holley ?
rebuilt many spreadbore 6210 holleys
heres a few pictures a vacuum secondary and a double pumper Last edited by rage'nrat638; 07-12-2007 at 06:58 AM. |
![]() |
![]() |
![]() |
#16 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
|
Re: Factory Holley ?
double pumper like yours..
Last edited by rage'nrat638; 07-12-2007 at 06:58 AM. |
![]() |
![]() |
![]() |
#17 |
RIP Mr Ron
![]() Join Date: Dec 2005
Location: Big Sandy, Tn. 38221
Posts: 8,166
|
Re: Factory Holley ?
The carb I have looks nothing like the one pictured. I didn't get a chance to get a picture today but will tomorrow for sure. Here are the only numbers I found on the carb and intake. Intake # is 9997771. under that number is GM 2 On the top of the fuel inlet (which comes in from the right side but looks like by changing a block off plug could come in from front) is the numbers L7454 and under that 9142. This truck was a 1973 year model and I bought it in the early 1990's so it could have been changed at some point but it looked to be original and the air cleaner and everything about it fit like a glove. Will get pictures tomorrow for sure.
__________________
Ron (Mr Round Tuit) ![]() Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket |
![]() |
![]() |
![]() |
#18 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
|
Re: Factory Holley ?
here you go ron..
heres what the holley by numbers book say's 1973-74 chevy 350/454 eng. aftermarket 4360 model ![]() Last edited by rage'nrat638; 07-12-2007 at 06:58 AM. |
![]() |
![]() |
![]() |
#19 |
RIP Mr Ron
![]() Join Date: Dec 2005
Location: Big Sandy, Tn. 38221
Posts: 8,166
|
Re: Factory Holley ?
Rage n Rat, Your book don't happen to have a picture of that monster does it? The only reason that I have kept this setup is no one has ever seen one like it when I show it to them. Oh well gives me something to do tomorrow in the cold.
__________________
Ron (Mr Round Tuit) ![]() Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket |
![]() |
![]() |
![]() |
#20 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
|
Re: Factory Holley ?
Last edited by rage'nrat638; 07-12-2007 at 06:58 AM. |
![]() |
![]() |
![]() |
#21 |
Registered User
Join Date: Jan 2007
Location: Saskatoon, saskatchewan, Canada
Posts: 8
|
Re: Factory Holley ?
I'm looking at a big block interchange manual and there is quite a list of 396's that have holley carbs. Most of them are in the muscle cars but your truck may have been ordered with a passenger car block. I have a 69 CST with the 396 and it came from the factory with a passenger car hi-perf block. The original owner ordered it that way. Get me your block # and I can cross reference it to see what model it is and if its original. Hope I can help.
|
![]() |
![]() |
![]() |
#22 | |
RIP Mr Ron
![]() Join Date: Dec 2005
Location: Big Sandy, Tn. 38221
Posts: 8,166
|
Re: Factory Holley ?
Quote:
__________________
Ron (Mr Round Tuit) ![]() Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket |
|
![]() |
![]() |
![]() |
Bookmarks |
|
|