California Emissions System?

Michael O’Harran

Well-known member
Joined
Jan 4, 2022
Messages
45
Reaction score
16
Location
Maryland region south of DC
My Car
1972 Mach 1 Mustang 351C
Currently Under Restoration
My Marti Report stats sets my car apart as unique is the California Emissions System. I get this is the niche they do. So I’ve tried to research this for myself and have not found a definitive answer. My question is what this system is and what makes it not the same system sold outside California? Could you buy a new car in California without that system? I’d love some real insight. Thanks
 

Attachments

  • 24D4C83B-B8CC-46EE-A308-B18135790CB7.jpeg
    24D4C83B-B8CC-46EE-A308-B18135790CB7.jpeg
    164.5 KB · Views: 12

Hemikiller

VIP Members
Joined
Jul 12, 2010
Messages
3,308
Reaction score
500
Location
Killingworth, CT
My Car
71 Mach 1
65 coupe
California cars would have a combination of carburetor, distributor and vacuum/emission system calibrations different from the 49-state cars. Some used completely different part #s for the two setups, others like your R code, used the same distributor and carburetor for all 50 states. The difference may be in the vacuum systems, or it may be that all R-codes were California certified.

@kevken1959 has several 72 R-code cars and may be able to help out here.

@rackerm is the parts guru, he can probably tell you exactly what the situation is.
 

Attachments

  • distributor.JPG
    distributor.JPG
    176.6 KB · Views: 13

Michael O’Harran

Well-known member
Joined
Jan 4, 2022
Messages
45
Reaction score
16
Location
Maryland region south of DC
My Car
1972 Mach 1 Mustang 351C
Currently Under Restoration
Thanks. You cited two people. In this site, are the “tagged” and will see this or do I need to start a conversation with them directly? Just learning the site. Thanks again.
 

rackerm

Rich
Joined
Aug 30, 2014
Messages
1,423
Reaction score
82
Location
Delaware
My Car
Stock 1973 Mustang Convertible with a 351C 2v and C6
Modified 1970 Mach 1 M-Code with a 351C 4v Manual

My Marti Report stats sets my car apart as unique is the California Emissions System. I get this is the niche they do. So I’ve tried to research this for myself and have not found a definitive answer. My question is what this system is and what makes it not the same system sold outside California? Could you buy a new car in California without that system? I’d love some real insight. Thanks
Hi Michael,

I am more familiar with 73 model year and I have not had a California Emission equipped car, but I can do some digging.

I believe the fuel vapor emissions and vacuum stuff was different on California cars. Do you have the original engine in or out of the car? If so, Does it have either a metal tag under the Coil bracket or a paper tag on the valve cover? If so take pictures and post them. They will look something like the picture below....

A quick glance your engine tag should read some like .... KK622.....C622....
I.D. # CID Carb VIN Code
Engine code 622 351C F-4 R
(or 623 630)

Original Block casting # D2AE-EA (Ford Part # D1ZZ-D) 351C 4 Bolt H.O.
 

Attachments

  • 1-8-2022 10-03-00 PM.png
    1-8-2022 10-03-00 PM.png
    295.6 KB · Views: 9
Last edited:

mrgmhale

Member
Joined
Apr 24, 2020
Messages
12
Reaction score
9
Location
Pittsford, NY
My Car
1973 Mach 1
1973 "True Survivor" Mustang Convertible
And more non-Big Nose Mustangs/Shelbys

[url=https://ibb.co/ZYR2dW1][img]https://i.ibb.co/RBGj2z4/IMG-4852.jpg[/img][/url]

[url=https://ibb.co/KzfYYJ7][img]https://i.ibb.co/M5tbbmp/1073-Mach-I-From-Right-Front-Above-With-Gil-20180608.jpg[/img][/url]
My Marti Report stats sets my car apart as unique is the California Emissions System. I get this is the niche they do. So I’ve tried to research this for myself and have not found a definitive answer. My question is what this system is and what makes it not the same system sold outside California? Could you buy a new car in California without that system? I’d love some real insight. Thanks
I have some information re: the 1973 engine vacuum calibrations as well as for the fuel evaporative system. All of the information is from the Forel Publications 1973 Mustang Shop Manual, Volume 6, which I have attached to this thread.

If you prefer to get all of the information you need re: 1973 emission calibrations, plus more info for later, the Forel Publications link is:
 

Attachments

  • 1973Mustang_VolumeVI_EmissionControlSystems_Chapter6_20210210.pdf
    5.1 MB · Views: 12

Michael O’Harran

Well-known member
Joined
Jan 4, 2022
Messages
45
Reaction score
16
Location
Maryland region south of DC
My Car
1972 Mach 1 Mustang 351C
Currently Under Restoration
Hi Michael,

I am more familiar with 73 model year and I have not had a California Emission equipped car, but I can do some digging.

I believe the fuel vapor emissions and vacuum stuff was different on California cars. Do you have the original engine in or out of the car? If so, Does it have either a metal tag under the Coil bracket or a paper tag on the valve cover? If so take pictures and post them. They will look something like the picture below....

A quick glance your engine tag should read some like .... KK622.....C622....
I.D. # CID Carb VIN Code
Engine code 622 351C F-4 R
(or 623 630)

Original Block casting # D2AE-EA (Ford Part # D1ZZ-D) 351C 4 Bolt H.O.
Unfortunately, I got my mustang without motor or trans. But after researching the 1972 351C I had built to be put in, I have found that cast code of D2AE-CA, is the same as what came on my original motor. Please if you can find anything else about the system with the limited information I have just from the Marti Report it would be greatly appreciated. I’m trying to soak up as much information as possible about my car and all of its details. Thanks.
 

rackerm

Rich
Joined
Aug 30, 2014
Messages
1,423
Reaction score
82
Location
Delaware
My Car
Stock 1973 Mustang Convertible with a 351C 2v and C6
Modified 1970 Mach 1 M-Code with a 351C 4v Manual

Unfortunately, I got my mustang without motor or trans. But after researching the 1972 351C I had built to be put in, I have found that cast code of D2AE-CA, is the same as what came on my original motor. Please if you can find anything else about the system with the limited information I have just from the Marti Report it would be greatly appreciated. I’m trying to soak up as much information as possible about my car and all of its details. Thanks.
I believe the California HO engine came with the whole smog pump setup. You can find rebuild pumps from Cardone. Not sure where t o find the rest of the plumbing. Also I believe the crank ventilation PCV was sealed on CA cars.
 

Michael O’Harran

Well-known member
Joined
Jan 4, 2022
Messages
45
Reaction score
16
Location
Maryland region south of DC
My Car
1972 Mach 1 Mustang 351C
Currently Under Restoration
I believe the California HO engine came with the whole smog pump setup. You can find rebuild pumps from Cardone. Not sure where t o find the rest of the plumbing. Also I believe the crank ventilation PCV was sealed on CA cars.
Do you know where I can find any literature on that? I looked at my catalogs Manuel’s section and didn’t find anything for exhausts. I’ll check out that company. Maybe they do. Thanks
 
Top