What's wrong with this picture?
April 19th, 2013, 05:29 PM
#4
Connoisseur d'Junque
Thread Starter
Join Date: Sep 2010
Location: The Hudson Valley
Posts: 21,183
Usually, DualJet refers to a Rochester carburetor that is functionally the same as the primary portion of a QuadraJet, but with only the front half of the body, and with a unique smaller bolt pattern and air cleaner opening.
I had not been aware of the existence of this version, which is for a late-'60s [whoops!] Pontiac (which is why I put it in the non-Olds-powered section
).
Sorry, I don't recall - lots and lots of walking and looking at stuff, and I had no interest in it myself, so I didn't file that information away.
- Eric
I had not been aware of the existence of this version, which is for a late-'60s [whoops!] Pontiac (which is why I put it in the non-Olds-powered section
).Sorry, I don't recall - lots and lots of walking and looking at stuff, and I had no interest in it myself, so I didn't file that information away.
- Eric
Last edited by MDchanic; April 19th, 2013 at 05:37 PM.
April 19th, 2013, 05:35 PM
#5
Registered User
Join Date: Dec 2011
Posts: 7,286
Late 60's Pontiac?
Hmmmmm.....
My memory says early smog era Olds. Like 1976-77 260 engine. Ck the pix of every intake in the other thread, see if the A2 intake takes a QJet bolt pattern like this.
Carb number would the application tell of course.
Worth some coin just for the NOS parts- screws, jets, power piston, primary throttle shaft maybe, choke coil, vacuum break unit...
Hmmmmm.....
My memory says early smog era Olds. Like 1976-77 260 engine. Ck the pix of every intake in the other thread, see if the A2 intake takes a QJet bolt pattern like this.
Carb number would the application tell of course.
Worth some coin just for the NOS parts- screws, jets, power piston, primary throttle shaft maybe, choke coil, vacuum break unit...
April 19th, 2013, 05:38 PM
#6
Connoisseur d'Junque
Thread Starter
Join Date: Sep 2010
Location: The Hudson Valley
Posts: 21,183
April 19th, 2013, 05:44 PM
#8
Connoisseur d'Junque
Thread Starter
Join Date: Sep 2010
Location: The Hudson Valley
Posts: 21,183
The pre-QJ 4bbl of which you speak was the 4GC, also known as the 4-Jet.
It was structurally the big brother of the 2GC, or 2-Jet, commonly used on all 2bbl motors from the late fifties through the early seventies.
It was (briefly) replaced by the DualJet because the DualJet's (ie: the QuadraJet's) metering system allowed for tighter mixture control for emissions.
- Eric
April 19th, 2013, 06:15 PM
#9
Registered User
Join Date: Apr 2012
Location: Bradenton, FL
Posts: 1,467
Yeeeeup
Late 60's Pontiac?
Hmmmmm.....
My memory says early smog era Olds. Like 1976-77 260 engine. Ck the pix of every intake in the other thread, see if the A2 intake takes a QJet bolt pattern like this.
Carb number would the application tell of course.
Worth some coin just for the NOS parts- screws, jets, power piston, primary throttle shaft maybe, choke coil, vacuum break unit...
Hmmmmm.....
My memory says early smog era Olds. Like 1976-77 260 engine. Ck the pix of every intake in the other thread, see if the A2 intake takes a QJet bolt pattern like this.
Carb number would the application tell of course.
Worth some coin just for the NOS parts- screws, jets, power piston, primary throttle shaft maybe, choke coil, vacuum break unit...
April 19th, 2013, 06:24 PM
#11
Connoisseur d'Junque
Thread Starter
Join Date: Sep 2010
Location: The Hudson Valley
Posts: 21,183
April 19th, 2013, 06:26 PM
#12
Connoisseur d'Junque
Thread Starter
Join Date: Sep 2010
Location: The Hudson Valley
Posts: 21,183
April 19th, 2013, 07:37 PM
#13
Registered User
Join Date: Apr 2012
Location: Bradenton, FL
Posts: 1,467
Ya, I thought they put these on the 231's as well. I even had trouble running my 260 with headers up to 5500, damed thing quit making power at 4000RPM. Yes, this is an excellent idea for those of you with children...
April 19th, 2013, 09:32 PM
#14
Just the facts...
Join Date: May 2008
Location: THE GREAT WIDE-OPEN
Posts: 1,259
also used on poncho 301's from '77-'79 or so.
saved costs on engineering a new carb.
later, they just cut-off the back half and called it a dual jet 210
they are funny to look at, never had the chance to crack one open for a chuckle.
bill
saved costs on engineering a new carb.
later, they just cut-off the back half and called it a dual jet 210
they are funny to look at, never had the chance to crack one open for a chuckle.
bill
Thread
Thread Starter
Forum
Replies
Last Post
MDchanic
General Discussion
21
November 3rd, 2010 12:48 PM
