#1  
Old 08-09-2022, 04:36 PM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
Ultimate Warrior
 
Join Date: May 2004
Location: Calgary, AB, Canada
Posts: 5,700
Default help with 1970 GP air cleaner;

I had hoped to make a single post in the lobby to ask a couple air cleaner questions applicable over several model lines, and model years, but OPH probably nailed it.

Quote:
Originally Posted by 'ol Pinion head View Post
BTW posting in the proper tech sections with short to the point questions would probably get you the most correct responses.
Question:

Can someone please confirm that the 1970 GP air cleaner is the same one used on the Lemans/GTO?
(EG: not the dropped base air cleaner used on 1970 Firebird)

---

Here are some pictures of the air cleaner base in question.




Here is a picture comparing this to a known (dropped base, c/w original date stamp) 1970 Firebird air cleaner:



Here is a picture with the Firebird air cleaner set on top of it;
The air cleaners have had the breather tube hole and passenger side snorkels aligned:

Attached Thumbnails
Click image for larger version

Name:	IMG_2792s.jpg
Views:	198
Size:	114.9 KB
ID:	596150   Click image for larger version

Name:	IMG_2793s.jpg
Views:	194
Size:	114.3 KB
ID:	596151   Click image for larger version

Name:	IMG_2794s.jpg
Views:	206
Size:	101.3 KB
ID:	596152   Click image for larger version

Name:	IMG_2795s.jpg
Views:	195
Size:	93.9 KB
ID:	596153  

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
1 Corinthians 2:12-14 / Ephesians 2: 8-9 / Luke 23: 39-43 / 2 Timothy 3:1-5;12
  #2  
Old 08-09-2022, 04:40 PM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
Ultimate Warrior
 
Join Date: May 2004
Location: Calgary, AB, Canada
Posts: 5,700
Default

I showed the snorkels because I have understood that the 1969 GTO air cleaner (not used on the GP) had a wider spread of the snorkels than what was used on the 1970+ air cleaners.

I have also read that there were several small variances in the angles between the snorkels for 1970-1972 air cleaners, but wanted to make known that this air cleaner was not spread wider than the 1970 Firebird Formula 400 air cleaner.

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
1 Corinthians 2:12-14 / Ephesians 2: 8-9 / Luke 23: 39-43 / 2 Timothy 3:1-5;12
  #3  
Old 08-09-2022, 06:28 PM
'ol Pinion head 'ol Pinion head is offline
Ultimate Warrior
 
Join Date: Apr 2000
Location: INJUN Territory, Red State Merica!
Posts: 9,127
Default

Above dual snorkel aircleaner is '70 GTO- 455 GP and 70 B series 455 w 64 heads.
A shown above, without CA emissions vent provision. By late in the '70 model year, this style aircleaner base had the small round hole in it to mate with the propper CA emission Qjet. on 49 state builds this small plastic plug remained in the hole. Fremont assembly workers were to remove the small plug if CA emissions Qjet was used.

For '71 Pontiac 400 4bbl & 455 Dport A-body's & 455 GPs, the same dimensional & appearance dual snorkel aircleaner was used (always has the small hole for the airhorn vent). Did use a different part number than the '70 application air cleaners.

__________________
Buzzards gotta eat... same as worms.
  #4  
Old 08-09-2022, 08:42 PM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
Ultimate Warrior
 
Join Date: May 2004
Location: Calgary, AB, Canada
Posts: 5,700
Default

/\ Thank you VERY much!

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
1 Corinthians 2:12-14 / Ephesians 2: 8-9 / Luke 23: 39-43 / 2 Timothy 3:1-5;12
  #5  
Old 08-09-2022, 10:06 PM
Held for Ransom's Avatar
Held for Ransom Held for Ransom is offline
Ultimate Warrior
 
Join Date: Mar 2000
Posts: 8,573
Default

Spot on Roger.

__________________
So long, farewell.
  #6  
Old 08-11-2022, 12:46 PM
Drdach Drdach is offline
Junior Member
 
Join Date: Sep 2021
Posts: 12
Default

what is the device mounted on the inner part of the air cleaner( where the filter would sit) called and what is its function. Are replacements available for it, and is it needed in this day and age?

  #7  
Old 08-11-2022, 01:31 PM
Held for Ransom's Avatar
Held for Ransom Held for Ransom is offline
Ultimate Warrior
 
Join Date: Mar 2000
Posts: 8,573
Default

Ames sells the sensor. Usage in the description.
https://secure.amesperf.com/qilan/De...part_num=N175V

__________________
So long, farewell.
  #8  
Old 09-21-2022, 09:20 AM
north's Avatar
north north is offline
Ultimate Warrior
 
Join Date: Oct 2006
Posts: 5,967
Default

Other info worth mentioning is that the dual snorkel was only used on 455’s in 70-72 GP’s and they had painted lids (as opposed to the chrome lid on the 70 GTO). 400 GP’s used a black short single snorkel air cleaner like that on small valve 70 455 big cars.

69 400 GP’s used a black long skinny snorkel air cleaner and both 428’s (370 and HO 390) used a chrome lid large single snorkel unit (same as 68 GTO, 68-69 big car 428 HO and 68-69 Firebird 400).

__________________
My Break Away Squad
1969 Fbird (Base, 350 & Sprint Cvts - TA Hardtop)
1969 LeMans (4dr Hardtop & a Cvt)
1969 GTO (a Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvts & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
  #9  
Old 09-21-2022, 10:12 AM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
Ultimate Warrior
 
Join Date: May 2004
Location: Calgary, AB, Canada
Posts: 5,700
Default

Interesting!

This is all new to me - thanks!

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
1 Corinthians 2:12-14 / Ephesians 2: 8-9 / Luke 23: 39-43 / 2 Timothy 3:1-5;12

Last edited by unruhjonny; 09-21-2022 at 10:27 AM.
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:21 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017