intake

bbellowsZ71 · May 19, 2004

what is a stock air box for. what does it do. I was wondering if i could take it off and if it would hurt anything

02denali · May 19, 2004

whoa hold on there. the stock air box is the filter box assembly. if you are going to remove it then you will need to replace it with another one. no filter will spell trouble. you could by one of the aftermarket ones or build your own. good luck.

BuiltNotBought · May 26, 2004

I wouldn't remove it without buying a cold air intake to replace it.

02denali · May 28, 2004

ok just checking. i built my own tube.

Mac8 · June 5, 2004

02Denali,

That is exactly what I want to do but haven't been able to find that type of elbow. Where did you find it? My next step was to look at Freightliner company.

It looks like you used the elbow and small piece of tubing and then used the stock pieces.

I can't justify spending $250 on something like this. That blue filter and box look like ones I've seen on ebay for around $60.

Thanks for any help,

Chuck

miket · June 6, 2004

If it's like the Caprice one I just did you can find the parts at Home Depot or Lowes.....I am looking at doing the same on my 8.1.

maroonsilverado · June 6, 2004

im just gonna say the obvious. if you build your own make sure it's completely air tight and sealed. a grain of dirt/sand can wreak havac on your motor.

i know that kinda goes without saying, but if you're asking if the stock airbox has a purpose.......

Weller · June 6, 2004

Has anyone made a Home Depot air intake for their truck? I'm trying to figure out how to make something for the 4.8L. I think I'll have to use the stock tube from the trottle body, since it sits so close to the fan. Any advice how to proceed from there?

Thanks!

02denali · June 6, 2004

i got the elbow and tube from here}http://shop.airflowonline.com/Merchant2/merchant.mv

elbow is 11.69====4" 90*

tube is 4" intake tubing===7.69

the box and filter is off ebay====39.99.

its not the best but it works and all was under 100.00

Mac8 · June 7, 2004

02Denali,

Do you have electric fans? It looks like you do from the pics. I don't think that elbow will work with the fan shroud.

02denali · June 7, 2004

yes i do. and yes it will be very hard to make a custom tube with the stock fan on there.

Mac8 · June 7, 2004

OK, thanks. What fan kit are you running and what did you gain in performance?

02denali · June 7, 2004

i am running the flex 292's. since i have put the 292's and the asp i think i have gained a lot of performance. look at my truck and mods below to.

mazingo · July 16, 2004

WORKING ON A HOME BUILT COLD AIR SYSTEM TOMORROW. USING SOME SCRAP ALUMINUM 4" PIPE AND k&n RE-0870 UNIVERSAL FILTER GOT SIXTY BUCKS IN IT ALL. LOOK PRETTY SIMPLE BUT I AM LEAVING THE STOCK TUBE FOR NOW. I PLAN TO RPLACE IT WITH 3" PUMP HOSE FROM WORK. PERK TO THE HOSE IS IT HAS A SPIRAL-GROOVED PATTERN ON THE INSIDE FOR STRENGTH. THE PATTERN MAY ACT AS A TORANDO TYPE THING. TIME WILL TELL.

THE 4" PIPE IS JUST TO GO BETWEEN THE maf AND THE FILTER (RE-0870 HAS A 4" OUTLET). tHE K&N FILTER i CHOSE IS 6-5/8 TAPERING TO 4-5/8 DIAMETER BY 9" LONG AND FLOWS 890 CFM.