454 TBI Air Cleaner - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TheApocalyptican · 02-03-2011, 03:09 PM

In my current quest to get a bigger/less restrictive air cleaner for my suburban, I have noticed a couple of guys trucks on here that have what looks like a stock air cleaner, only with a bigger inlet to it. Does the 454 TBI air cleaner have a bigger neck than the 350 TBI air cleaners?

What I am talking about:

That's LOW1TON's truck, and neck looks almost twice as wide as all the others I see. Also saw one other truck recently that looked like it was bigger too, but don't remember which thread I saw it in.

munice · 02-03-2011, 04:01 PM

Yes, that is the stock breather for the 454s. They obviously use a slightly different intake hose but both have the same diameter where it attaches to the rad support. This is the only pic I have of the rusty stock breather that came on my motor (on the stack of rims, far right corner) the width of the snout is the only real difference, the 454 breathers may also have a 90 degree crank case vent fitting coming out the bottom on the drivers side breather. I gave that stock one away to the guy that bought my 350 and hes had no problem with using it on a small block.

Hulk Will Smash · 02-03-2011, 06:55 PM

I bought one of the old school Caddy style air cleaner bodies for my '87, but haven't been able to bring myself to start feeding the motor hot underhood air...

02-03-2011, 03:09 PM	#1
TheApocalyptican Registered User Join Date: Jun 2010 Location: Las Vegas, Nv Posts: 312	454 TBI Air Cleaner In my current quest to get a bigger/less restrictive air cleaner for my suburban, I have noticed a couple of guys trucks on here that have what looks like a stock air cleaner, only with a bigger inlet to it. Does the 454 TBI air cleaner have a bigger neck than the 350 TBI air cleaners? What I am talking about: That's LOW1TON's truck, and neck looks almost twice as wide as all the others I see. Also saw one other truck recently that looked like it was bigger too, but don't remember which thread I saw it in. __________________ 1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s Last edited by TheApocalyptican; 02-03-2011 at 03:09 PM.

02-03-2011, 04:01 PM	#2
munice regular everyday normal guy Join Date: Aug 2009 Location: SW Ontario, Canada Posts: 125	Re: 454 TBI Air Cleaner Yes, that is the stock breather for the 454s. They obviously use a slightly different intake hose but both have the same diameter where it attaches to the rad support. This is the only pic I have of the rusty stock breather that came on my motor (on the stack of rims, far right corner) the width of the snout is the only real difference, the 454 breathers may also have a 90 degree crank case vent fitting coming out the bottom on the drivers side breather. I gave that stock one away to the guy that bought my 350 and hes had no problem with using it on a small block. __________________ -Andrew- 1987 Chevrolet V10 SM465 NP208 w/ '89 454 dual plane hi-rise 750cfm 1407 w/ '86 10b /14b new motor on the way: GM#990 heads 25cc speed pro pistons COMP XE 274h crane gold rollers

02-03-2011, 06:55 PM	#3
Hulk Will Smash Registered User Join Date: Apr 2006 Location: Huntington Beach, CA Posts: 492	Re: 454 TBI Air Cleaner I bought one of the old school Caddy style air cleaner bodies for my '87, but haven't been able to bring myself to start feeding the motor hot underhood air... __________________ '87 R30 Crew Cab Dually It's 11 PM, do you know where your IAC pintle is?



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