Air cleaner size

[99xcss4]

That extra tall air filter setup was also part of a Desert environment option. Good luck finding a new filter, probably have to glue two together.
A big oval air filter setup, are you running dual quad 650's.

did not know that thought that it was a option on some 350 and 454 as far as finding filters goes that may be true for locally but ebay and summit and a few other sites sell them

 

[Cadillacmak]

Hi I’m new to the forum and I been going back and forth about this for a long time but haven’t been able to find a real answer.I have a 89 Chevy with a 5.0 tbi in it.it’s pretty stock other then exhaust,headers and a Edelbrock performer rpm intake manifold.anyways I’ve always loved the look of a oval air filter but I’m not sure if it will be enough for my truck.it’s a 15x2 oval.the filter is 2 inch high I can’t find a 3inch only a 4 inch tall but that looks way off.anyways is a 15x2 oval air filter enough or will I need to stick to the 14x3 round thanks.

In Arizona you will need that cold air, I would get a setup that gets cold air from somewhere! In Alaska, not so much! I run the K&N that everyone hates because its not true cold air. Which is okay here, but not in AZ.

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[Honeybear]

In Arizona you will need that cold air, I would get a setup that gets cold air from somewhere! In Alaska, not so much! I run the K&N that everyone hates because its not true cold air. Which is okay here, but not in AZ.

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I have a cowl hood on it would that help any?it’s not the kind that the air cleaner goes into but it has openings into the engine bay

 

[AuroraGirl]

I have a cowl hood on it would that help any?it’s not the kind that the air cleaner goes into but it has openings into the engine bay

mildly but ultimately your engine bay is an oven. except when moving at high speed, and even then in the right weather, your pulling your air through an area that heats it up a lot before it goes into the engine, this is lost hp and efficiency, and tbi were still able to have vapor issues although much les than carbs.
Literally a stock air cleaner and ripping out the plate indiscriminately thats blocking the original duct, and just sticking it up into this opening haphazardly will do you engine a big solid.

 

[AuroraGirl]

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[99xcss4]

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I have to get one of those for my set up

 

[GoToGuy]

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Yep this is setup we talked about last year. I posted the photos and posted the close ups with the part numbers.
Although I don't remember if it was Jegs or Summit I ordered from, for resonator eliminator tube.

 

[Honeybear]

mildly but ultimately your engine bay is an oven. except when moving at high speed, and even then in the right weather, your pulling your air through an area that heats it up a lot before it goes into the engine, this is lost hp and efficiency, and tbi were still able to have vapor issues although much les than carbs.
Literally a stock air cleaner and ripping out the plate indiscriminately thats blocking the original duct, and just sticking it up into this opening haphazardly will do you engine a big solid.

Ok cool I did it today and went to junk yard and found everything but I noticed that when I bought a new filter for it the lid dosent seem to close all the way down is that normal?

 

[L31MaxExpress]

That extra tall air filter setup was also part of a Desert environment option. Good luck finding a new filter, probably have to glue two together.
A big oval air filter setup, are you running dual quad 650's.

Wix still offers them, $50. K&N makes a replacement that is about $100. I have the lid for the 87 G20 vans G30 454 van air cleaner housing but decided to try the shorter 3.5" filter first. Still noticeably restrictive to the 350 compared to a 14x3 open element with a K&N filter. The 3.5" filter in a Bosch was under $10.

 

[L31MaxExpress]

Your '89 has an outside- ("cold-") air intake. There's also provision for heated intake air to prevent throttle-body icing in cool weather.

Disabling that is crazy. There are some OEM pieces that might allow additional airflow capacity while NOT screwing-up what's been engineered. But let's face it--a 305 in a pickup is not lacking for airflow through the stock air cleaner system.

Shut the hood, no one will know that you don't have a shiny aftermarket air cleaner.

The TBI 454 G30/P30 motorhome air cleaner I have on my 350 in the 87 G20 never had that hot air junk. Just not needed down here. Seems to be something GM put mostly on V05 cooling system equipped trucks, vans and larger truck chassis type stuff.

I have seen the smaller housings used on the 4.3L and SBC without the pre-heater setup as built from GM too. The Vortecs and pretty much every pre ~1970 enginr were all built without any kind of pre-heater as well.