Correct 1970 454/390 Auto Emission Label? DQ or AS or AW?

[Steven S.]

Hi. I need to put the emissions label back on my 1970 454/390 Automatic, built in late May 1970. After looking at the various dealer websites, 4 companies have labels that have "DQ", 1 company has the label "AS" and another company has the label "AW."

My judging manual is in my storage unit in California, and I will not be going out there for another 3 weeks. Can someone please tell me which label is correct?

Thanks again for all of your help.

Steve

[Reba W.]

Re: Correct 1970 454/390 Auto Emission Label? DQ or AS or AW?

After looking at the JG, I see why vendors list differing letters.

Here is the list from the latest JG

LS5 454/390hp

DP 3960209 Seen on s/n 34, probably only used very early
DQ 3980210 up to at least s/n 9557
AW 3989368 beginning with at least s/n 4651
AS 3989366 Seen on s/n 15011 w/NA9

There is also this caveat: Original 1970 emissions labels listed as late application in the chart have a last line reading THIS VEHICLE CONFORMS TO U.S. DEPT. OF H.E.W. REGULATIONS APPLICABLE TO 1970 MODEL YEAR NEW MOTOR VEHICLES.

[Steven S.]

Re: Correct 1970 454/390 Auto Emission Label? DQ or AS or AW?

Hello Reba,

Thank you very much for the information. I am awaiting the newest JG for 70-72, before I buy a new one . My storage unit in CA has all of my Corvette books that I have accumulated since the '80s, so I look forward to my trip there in 2 weeks.

Thanks again,

Steve

After looking at the JG, I see why vendors list differing letters.

Here is the list from the latest JG

LS5 454/390hp

DP 3960209 Seen on s/n 34, probably only used very early
DQ 3980210 up to at least s/n 9557
AW 3989368 beginning with at least s/n 4651
AS 3989366 Seen on s/n 15011 w/NA9

There is also this caveat: Original 1970 emissions labels listed as late application in the chart have a last line reading THIS VEHICLE CONFORMS TO U.S. DEPT. OF H.E.W. REGULATIONS APPLICABLE TO 1970 MODEL YEAR NEW MOTOR VEHICLES.