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GMC V6 and V12 Engines Engine repair and rebuilding

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  #1  
Old September 4th, 2017, 02:28 AM
AZKen AZKen is online now
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Default Calling all Air Cleaners

We have such a great database for GMC trucks. I read on other sites all the time about folks using this site to investigate a GMC. Maybe we can ad value by identifying proper Air Cleaners per year. I do get confused as to which style and shape it correct for what years. So can everyone, who knows for sure what year Air Cleaner they have, post a picture in this post? Hope to get all we can get so as to verify and document a section. This would add to the other great information of parts like our hub caps, hoods, VIN decoder/location, Motor ID, wheel discussion and so forth. So post your Air Cleaner pics here. All the Guru's and historians and experts can weigh in and comment on anything they see that is in error or corroborate what they see as correct. It would also be nice to discuss the PCV aspect regarding air cleaners/years. (road draft tube years, filter breather can years and recirc years)

Last edited by AZKen; September 4th, 2017 at 02:39 AM.
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  #2  
Old September 4th, 2017, 03:24 AM
Ed Snyder's Avatar
Ed Snyder Ed Snyder is offline
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Default Re: Calling all Air Cleaners

Quote:
Originally Posted by AZKen View Post
We have such a great database for GMC trucks. So can everyone, who knows for sure what year Air Cleaner they have, post a picture in this post? Hope to get all we can get so as to verify and document a section.
Here are 3 photos of original air cleaners for you, Ken. The first one is the oil bath on the '65 one ton Suburban my Dad bought new. The second one is on the 351E in the '66 that Clyde in SC owns now. When I bought it in 1995 it only had about 40,000 miles on it, and was 100% stock from all appearances. The third one is on the 351E in the '67 that I bought a few months ago. This truck is all original as far as I can tell, and has about 60,000 miles on it.
Attached Images
File Type: jpg '65 Suburban.JPG (185.7 KB, Multiple views, 15 clicks)
File Type: jpg 0008.jpg (102.5 KB, Multiple views, 19 clicks)
File Type: jpg 5.jpg (118.7 KB, Multiple views, 16 clicks)
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1962 K1000 Suburban 401M & SM420
1965 2500 Suburban 351C & SM420 with Watson overdrive
1967 CM1500 pickup 351E & NP435
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  #3  
Old September 4th, 2017, 11:03 AM
James James is online now
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Default Re: Calling all Air Cleaners

Mine is a 1964, my father in-law had bought it second hand in 1966 (not sure exactly which year).
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File Type: jpg Left Engine Bay.jpg (337.8 KB, Multiple views, 19 clicks)
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  #4  
Old September 4th, 2017, 06:19 PM
AZKen AZKen is online now
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Default Re: Calling all Air Cleaners

Great pictures! Did not realize the oil bath went into 65. Here is what I think is stock 60 oil bath. I have three different pix of 1960. All have the breather caps on the valve covers. These are from the internet. The bright red one is a 1961. At some point the oil bath went from bucket to pancake. Can we obviously say that anything with a snorkel is a non oil bath? So far Ed has shown that the change to filament was 1966.

I think it is really neat to see James' motor with the York A/C. Would like to see all the mounting features on that. Looks like they cutout the shroud to clear pulleys. Very interesting vintage A/C for 305.

KEEP THE PIX COMING, EVERYBODY. Any documentation, RPO info or history of the GMC Air Cleaner/PCV evolution is appreciated. The 305 has crankcase ventilation valves inside the valve cover that everyone should know about and be sure they are cleaned out and operating. I learned about those on this site. One on each bank in my 63 motor.
Attached Images
File Type: jpg 1960GMC Air Cleaner.jpg (60.7 KB, Multiple views, 8 clicks)
File Type: jpg 1960GMCAircleaner.jpg (47.6 KB, Multiple views, 5 clicks)
File Type: jpg 1960GMCSteering.jpg (56.9 KB, Multiple views, 10 clicks)
File Type: jpg 1961GMCheaterhoserouting.jpg (33.8 KB, Multiple views, 8 clicks)

Last edited by AZKen; September 4th, 2017 at 06:52 PM.
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  #5  
Old September 4th, 2017, 07:39 PM
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Funky61 Funky61 is online now
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Default Re: Calling all Air Cleaners

Here's a few;

My 305A (1960) oil bath/road draft tube and air breathers on both valve covers

and a 478M air cleaner
and a 379 air cleaner

Not sure on the years.
Attached Images
File Type: jpg 007_4A.JPG (649.9 KB, Multiple views, 6 clicks)
File Type: jpg 478 v6 matt.jpg (754.8 KB, Multiple views, 8 clicks)
File Type: jpg IMG_1354.JPG (1.24 MB, Multiple views, 11 clicks)
File Type: jpg IMG_5838.JPG (1.93 MB, Multiple views, 10 clicks)
File Type: jpg IMG_5837.JPG (2.09 MB, Multiple views, 5 clicks)
File Type: jpg IMG_5844.JPG (1.98 MB, Multiple views, 5 clicks)
File Type: jpg IMG_5845.JPG (3.06 MB, Multiple views, 8 clicks)
File Type: jpg IMG_5839.JPG (2.11 MB, Multiple views, 5 clicks)
File Type: jpg IMG_5843.JPG (2.15 MB, Multiple views, 6 clicks)
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  #6  
Old September 4th, 2017, 08:41 PM
AZKen AZKen is online now
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Default Re: Calling all Air Cleaners

Than you Funky. Hope we get ID on the no snorkel dry filter one. Aftermarket or original magnum/diesel? On two different motors indicates GMC original.

Last edited by AZKen; September 4th, 2017 at 09:05 PM.
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  #7  
Old September 5th, 2017, 04:16 AM
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jimjaz jimjaz is offline
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Default Re: Calling all Air Cleaners

This is my 63 K1000 model Suburban that has the correct oil bath on it.
(Same as my Avatar on this site)

http://6066gmcclub.com/attachment.ph...1&d=1504577527
Attached Images
File Type: jpg user18_pic763_1366776826[1].jpg (97.2 KB, Multiple views, 10 clicks)
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  #8  
Old September 5th, 2017, 05:41 AM
bigblockv6 bigblockv6 is online now
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Default Re: Calling all Air Cleaners

[QUOTE=AZKen;67904]Great pictures! Did not realize the oil bath went into 65.

Yes, the oil bath continued on 4wd V6 models up to 68-69, my 68 K2500 came with the same one Ed's 65 Suburban has which was made by Donaldson. I'll dig up the build sheet this coming weekend and list the RPO code. I replaced the air cleaner with an open type in 1975 when I did the Holley conversion.
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  #9  
Old September 5th, 2017, 06:52 PM
AZKen AZKen is online now
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Default Re: Calling all Air Cleaners

Very Valuable info. Thanks for finding the RPO.
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  #10  
Old September 7th, 2017, 03:40 PM
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Sonic65 Sonic65 is offline
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Default Re: Calling all Air Cleaners

First is off my 65 GMC 1/2 ton Custom Cab with 305E. Second is off my 66 GMC with 305E.
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File Type: jpg 20170906_123248.jpg (2.56 MB, Multiple views, 9 clicks)
File Type: jpg 20170906_123004.jpg (3.38 MB, Multiple views, 9 clicks)
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