OEM Breather replacement

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
263
Reaction score
622
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
I'm looking for a replacement air intake breather that will fit onto the original 4brl quadrajet.
I'm wanting to eliminate the snorkel tube, but I don't want to "hack" the original.
I'll gladly hack a replacement..lol.
Yes, I run the breather lid flipped over.
Of the aftermarket breathers I've found, they don't have the correct notch cuts to fit on the Q-jet correctly.

So, any suggestions would be helpful...thanks.
 

Goldie Driver

Full Access Member
Joined
Mar 19, 2018
Posts
4,045
Reaction score
6,638
Location
Houston, Texas
First Name
Britt
Truck Year
1980
Truck Model
GMC K1500 Suburban
Engine Size
350
Are you talking about this filter ?

 

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
263
Reaction score
622
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
I'm talking about the big round metal can with a lid and a long snorkel. It's usually painted black from the factory and houses a big round air filter which traps dirt from getting into carburator..
 

hey mister

Full Access Member
Joined
Jun 15, 2024
Posts
263
Reaction score
622
Location
North Coast
First Name
Marty
Truck Year
1978
Truck Model
C10
Engine Size
350
Somehow, sucking air in thru a 1-1/2" snorkle opening just doesn't seem fitting for the long tube headers w/ 2-1/2" dual exhaust .
And if the factory snorkle was good, why can't I find a replacement in any where?

I do appreciate the perspective though.
 

squaredeal91

Full Access Member
Joined
Mar 10, 2023
Posts
2,569
Reaction score
4,649
Location
Cave junction Oregon
First Name
Greg bush
Truck Year
1991 SB
Truck Model
K30
Engine Size
5.9 Cummins 12 valve
Your engine will give more performance with less Cold air than all the hot air you can give it. (Naturally aspirated speaking)
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,693
Reaction score
6,874
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Somehow, sucking air in thru a 1-1/2" snorkle opening just doesn't seem fitting for the long tube headers w/ 2-1/2" dual exhaust .
And if the factory snorkle was good, why can't I find a replacement in any where?

I do appreciate the perspective though.
because why would you replace them if they work? if you cant find the duct itself you mean, then you simply havent looked for it im pretty sure.
xc_hide_links_from_guests_guests_error_hide_media
 

75gmck25

Full Access Member
Joined
Oct 13, 2016
Posts
2,297
Reaction score
2,254
Location
Northern Virginia
First Name
Bruce
Truck Year
1975
Truck Model
K25 Camper Special TH350 NP203
Engine Size
5.7
If you go to a GM-related classic car show there will be vendors with various air cleaners to fit the Quadrajet. Some are even dual a snorkel design that allow you to use both cold air intakes in your truck (there should be a 2nd hole in the support on the driver’s side, but it is only used for the 6 cylinder).

Or a pick and pull yard may also have air cleaners with a bigger snorkel. However, for some reason many junkyard engines are missing the air cleaner.
 

PrairieDrifter

Full Access Member
Joined
Dec 28, 2014
Posts
3,868
Reaction score
5,686
Location
North Dakota
First Name
Mason
Truck Year
84,79,77,76,70,48
Truck Model
Suburban k10, bonanza k10, k30, k20, c10, gmc 1/2ton
Engine Size
350, 350, 350, 350, 350, 350
Somehow, sucking air in thru a 1-1/2" snorkle opening just doesn't seem fitting for the long tube headers w/ 2-1/2" dual exhaust .
And if the factory snorkle was good, why can't I find a replacement in any where?

I do appreciate the perspective though.
The exhaust flow doesn't matter if your engine can't overflow the exhaust. You have a 350? The snorkel is more than sufficient, especially since it's forcing air straight in. Cut the shield off the front of the inlet mount and you'll have ram air.

The 80's housings have a good sized inlet for the snorkel. The snorkels should be available on any of the truck sites. Lmc has them. Haven't seen any aftermarket housings with a 3 or 4 inch tall filter like the factory setup. Also pcv and charcoal can breather ports.

Like said above, don't know if you've ever been in the engine bay while at full temp on a hot day. It's more than HOT, AND that's with the hood open usually not running. Easy horsepower is lower intake temps.
 

Rustisbest

Driving > posting
Joined
Jul 20, 2021
Posts
196
Reaction score
497
Location
Athens, TN
First Name
Matt
Truck Year
1979
Truck Model
C10
Engine Size
377

Waste of time if its a stock engine but I use this one. My unpopular opinion is there's not gonna be a big enough difference at road speeds to worry about the difference in intake temps. Especially with a cast iron intake with exhaust crossover and EGR. Sitting at an idle- yeah there's a difference.
 

mlsceo

Full Access Member
Joined
Dec 29, 2022
Posts
435
Reaction score
1,286
Location
Kingsburg California
First Name
Manuel
Truck Year
1977
Truck Model
c10
Engine Size
350
Somehow, sucking air in thru a 1-1/2" snorkle opening just doesn't seem fitting for the long tube headers w/ 2-1/2" dual exhaust .
And if the factory snorkle was good, why can't I find a replacement in any where?

I do appreciate the perspective though.
I bought a new snorkel from LMC truck parts.
 

Ricko1966

Full Access Member
Joined
Apr 11, 2017
Posts
5,548
Reaction score
8,976
Location
kansas
First Name
Rick
Truck Year
1975
Truck Model
c20
Engine Size
350
I ca
Somehow, sucking air in thru a 1-1/2" snorkle opening just doesn't seem fitting for the long tube headers w/ 2-1/2" dual exhaust .
And if the factory snorkle was good, why can't I find a replacement in any where?

I do appreciate the perspective though.
I can follow your thinking. Look on ebay etc. For an Air cleaner for an l69 305. They have dual cold air snorkels. Some other GM products had them also but can't tell you off hand which ones.
 

Attachments

  • Screenshot_2024-09-15_104422.jpg
    Screenshot_2024-09-15_104422.jpg
    56.6 KB · Views: 27
  • Screenshot_2024-09-15_104621.jpg
    Screenshot_2024-09-15_104621.jpg
    88.9 KB · Views: 24
Last edited:

Forum statistics

Threads
44,346
Posts
954,884
Members
36,584
Latest member
brunoD
Top