Topic: Q-JET Numbers
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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Lifetime MemberEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2465
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
The Q-jet on my 72' I believe has been changed. The reason why the TCS system is not correct. The number on the one I have is 17054920. Does any one have a list to determin what this fits and if it can be matched to the engine if re-built to spec? The one that is for that car/engine according to the Black Book is, 7042203 or 7042903. The one on the car I believe is for a vehicle after 1976. I would like to have the correct one, seeing all the other numbers are correct, to the best of my knowledge. THANKS Mark
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Yes any number that starts with 170 is a 75 and newer. I just finished rebuilding a 7042208 carb that is off a 72 truck. rejeted it for a 7042203 manual trans. (KNOW ONE WILL EVER KNOW). If you go to swapmeets look for these code numbers. 7042 is a 72 year and 203 is manual trans and 202 is automatic.
I will e-mail you the codes to brake down the carbs.
Dean
Mark,
I have heard good things about www.carbjunkys.com
Thay may have a core or a correct rebuilt Q-Jet for you.
Keep us posted.
Kevin
Lifetime MemberEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2465
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
THANKS Guys, I E-mailed the junkie. Nothing on his E-Bay site. I may have it re-jetted when re-built. Longs it runs right and gets decent gas mileage I do not care. Would be nice to have the correct number on the bowl though. Mark
Former Member
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Oak Creek, WI - USA
Joined: 5/21/2008
Posts: 1965
Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
1972 Corvette Carburetors
| HP | Application | Mfg. | Model | Mfg. # | Chev. # |
|
200 |
4-Speed |
Rochester |
MV4 |
|
7042203 |
|
200 |
4-Speed/NB2 |
Rochester |
MV4 |
|
7042903 |
|
200 |
THM |
Rochester |
MV4 |
|
7042202 |
|
200 |
THM/NB2 |
Rochester |
MV4 |
|
7042902 |
|
255 |
All |
Holley |
4150 |
R6239A |
3999263 |
|
270 |
4-Speed |
Rochester |
MV4 |
|
7042217 |
|
270 |
THM |
Rochester |
MV4 |
|
7042216 |
Lifetime MemberEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2465
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
THANKS DAN, MUCH appreciated. What does the "NB2" stand for? If you find a 203 laying around without a home let me know. Preciate your input/assistance.
Former Member
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Oak Creek, WI - USA
Joined: 5/21/2008
Posts: 1965
Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
Mark: The info I sent you came from this web site http://www.corvette-world.com
Ther is a lot of information on that site for any corvette!! Check it out. I am not sure what "NB2" means. I will find out and let you know. I'm sure it refers to a transmission type.
Dan
Lifetime MemberPoquoson, VA - USA
Joined: 11/20/2004
Posts: 1023
Vette(s): 73 Conv, Blue-Green/White Top - 454, M21 - Dark Saddle Leather, Power Windows, A/C, Tilt/Tele, AM/FM St. (orig. and sounds like it too).#2 -- 2007 Coupe,3 LT package, Z51 option, Victory Red, Ebony Int. Clear Top.
Found this on a site...
NB2 equipment was required on California 1972
Corvettes and consisted of an Air Injection Reactor
system and different camshaft with longer valve overlap2 cruzn 2010-03-02 17:32:36
CDH . 350..200 ... Roch. Q-jet, NB2 & 4-Speed
CKX . 350 .200 ... Roch. Q-jet & THM
CDJ .. 350 .200 . . Roch. Q-jet, NB2 & THM
CKX . 350 .200 ... Roch. Q-jet & THM
CDJ .. 350 .200 . . Roch. Q-jet, NB2 & THM
NB2 equipment was required on California 1972
Corvettes and consisted of an Air Injection Reactor
system and different camshaft with longer valve overlap
Lifetime Member #86
USN 1966-1970
WestPac 67-68 Tet I&II
Featured in Corvette Enthusiast Aug 2007 "Shark Attack"
Blue Green *** 454,4 Spd, Dark Saddle Leather, A/C, AM-FM St. (orig), PW, Tilt -Tele Wheel"
(click to see a bigger image)
USN 1966-1970
WestPac 67-68 Tet I&II
Featured in Corvette Enthusiast Aug 2007 "Shark Attack"
Blue Green *** 454,4 Spd, Dark Saddle Leather, A/C, AM-FM St. (orig), PW, Tilt -Tele Wheel"
(click to see a bigger image)
Former Member
Send PM
Oak Creek, WI - USA
Joined: 5/21/2008
Posts: 1965
Vette(s): 1981 Great White Shark. Red Interior, 350/190 hp. PS, PB (SS), A/C CC, T-Tops. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vettes Car Club. 175,000 Original miles!! Now own a 1998 C-5!
Thanks Ray, I knew that the NB2 was something simple.!!
Dan
Former Member
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Easley, SC - USA
Joined: 4/14/2008
Posts: 39
Vette(s): Yellow 1980, L48,Auto, Matching Numbers, Everything factory original...for now.
Hey guys,
I'm having trouble with my qjet after having the engine reubuilt with a mild cam and better heads. I took the car to my mechanic to have the carb rebuilt and he said the numbers on the carb indicated it was for a 305 and I have a 350.
I've tried to find info on an 80 vet on the sites shown above but can't seem to find any carb info. If someone has some info I would appreciate it.
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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