1970 Quadrajet question
Thread Starter
5th Gear
Joined: Feb 2009
Posts: 5
Likes: 0
1970 Quadrajet question
Hello all, does anyone know what the difference is between a 1970 rochester #7040205 and a 1971 #7041205 besides the year obviously. I have a '70, 454, mt no thermactor. The guy before me put a holley on an otherwise perfect number matching car. I dont need it to be date corrct at this point as it is only a driver, however, I want a Quad that requires no mods to work perfectly...You guys are the gurus...what do you think??
Instructor
Joined: May 2007
Posts: 112
Likes: 1
From: Chadds Ford PA
The breakdown on the part number is as follows:
7041205
70= Rochester (some Quadrajets were manufactured by Carter)
41= year code for 1971
2= 49 state emission (5 for CA emissions)
0= Chevy
5= Odd number for manual, even for auto
As I recall, there were letter designations following the part number that further identifies the part. Do you have letters after the part number?
7041205
70= Rochester (some Quadrajets were manufactured by Carter)
41= year code for 1971
2= 49 state emission (5 for CA emissions)
0= Chevy
5= Odd number for manual, even for auto
As I recall, there were letter designations following the part number that further identifies the part. Do you have letters after the part number?
Instructor
Joined: Apr 2005
Posts: 200
Likes: 0
From: Finksburg Maryland
If you want to compare jet sizes etc. you can find the info here
http://74.125.47.132/search?q=cache:...lnk&cd=4&gl=us
http://74.125.47.132/search?q=cache:...lnk&cd=4&gl=us
