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2004 Chevy Silverado Z71

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Old 12-14-2004, 09:28 PM
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2004 Chevy Silverado Z71

I was bored, so I figured I'd post about it.

I bought it almost 6 months ago. It's a great truck. It has the 5.3 Vortec V-8. 4-door extended cab. I've added a Gibson cat-back exhaust, MAC hi-flow intake, Superchips programming, hi-flow MAF and a throttle body spacer. It came stock with 295-300HP, depending on who you talk to. Based off of the power claims of the mod part manufactures, I'd have 375 HP. I figure I'm around 350HP. I get about 17 MPG. Not bad for a V8. I'd like to add a set of headers in the near future. If anyone is considering purchasing one,...I highly recommend it.
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Old 12-15-2004, 05:43 AM
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Where's the pics?????
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Old 12-15-2004, 10:26 AM
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jeez 91...more space for you to show off
how does your woman let you do all that crap

if i got a truck it would be a big ol' dodge
one of dem big new 1500 5.7L HEMI ones with dub trices on it and complete exhaust, intake, with chips, modules, and programmers... :burnout:
probably not

post some pics
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Old 12-15-2004, 11:28 AM
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Will do.
It's not a matter of her letting me do it. I'm the man and I make the decisions. Yeah right. It more comes down to I make much more than she does, so I can afford it. I also pay double what she does on the house and other mutual expenses. I'm sure that if/when we get married, that will all change....along with many others things; which we have discussed other threads. :doh:
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Old 12-15-2004, 06:52 PM
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aaaahahaha
ive still got a couple more 10 years before that will happen
post some picks of that pick-up
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Old 12-15-2004, 06:55 PM
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just as long as she doesnt make you say bye-bye to the z when the baby makin starts :headspin:
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Old 12-16-2004, 05:59 AM
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ha ha ha ......... Soon after I was married, I talked about buying a new motorcycle. The wife said if I bought a motorcycle she'd leave me, I said "Goodbye" and bought it. 24 years later, numerous motorcycles, and a crap load of cars and she's still hanging in there. In fact she loves the Z and looks pretty hot in it. She even ended up riding a quad herself for 7 - 8 years when the kids were riding.

Oh well, sorry to hiJack your thread.
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Old 12-16-2004, 05:30 PM
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Sounds like a nice truck 91. One question though. If you wanted a truck to modify, why didn't you get the lightning. Or better yet the syclone! Now that's a truck!
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Old 12-16-2004, 08:21 PM
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Because those things are Pavement Princesses. You don't want to take them off road anymore than you would a Z. I wouldn't buy the lightning because it's a Ford. I'm a Chevy/GMC guy. The psyclone could be fun, but you wouldn't go out and play in the mud with it. I don't like Dodge either, so I'd never consider the SRT.
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Old 12-16-2004, 09:21 PM
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I guess, I like street trucks.
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Old 12-17-2004, 08:43 AM
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Avavlanche

I talked the wife into getting rid of the graeded Mini-van, and get a truck. We test drove evry crew cab truck on the market. We decided on the Chevy Avalanche. It has the most interior room,( with 2 boys this is important). It is very well designed, and I an off road in it. The biggest reason was ride qaulity. i have 2 4" rods in my lower back so i cant have a jarring ride like the Dodge and Ford. The Chevy 1500 Z71 was a nice ride but the Avalanche had more usability. You get the interior room of a suburban without the back seat. A water tight bed that locks, so all your goodies are safe inside. And I get up to 23mpg on the interstate. The body molding protects the paint when off roading thru the sage brush.

The unuiqness make its resale value better then a pick-up. When I was looking for a truck I went with what was hardest to find on a used car lot. In March of 2004 i did a search for Avalanches in a 500 mile radius, I founf none used. I did a search for the new F-150 and Duramax. i found a lot of those. I used this to determione that people who buy Avalanches dont get rid od them.
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Old 12-17-2004, 04:42 PM
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Does your Avalanche have the 5.3 liter? When the Avalanche 1st came out, I didn't like the way they look. They're growing on me a bit, but it's not there yet.

Why'd you change your name?
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Old 12-17-2004, 04:47 PM
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My Avalanche has the 5.3. My brother has the 8.3. I think the 327 is plenty of motor for the truck. I get twice the mileage that mt brother gets in his.

As for my account I could no longer post with it. I created a new one and problem solved.

If you havent drivin and Avalanche go and treat yourself one day. I gaurantee that the loks are appriate for the truck. They handle great for a full size truck. They are very quiet and comfortable.Kinda like you ZXTT when you first drove it.
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Old 12-17-2004, 05:10 PM
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Originally Posted by 280Z4ME
My Avalanche has the 5.3. My brother has the 8.3. I think the 327 is plenty of motor for the truck. I get twice the mileage that mt brother gets in his.
That 8.3 is a beast. That's the 502, right? His must sound awesome. Almost worth the extra $.
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Old 12-31-2004, 01:43 PM
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He bought it cause when have you ever said I have too much motor. He also goes off roading a lot outside of Denver in the mountains. I takemine off roading a lot also and have not found anything that I cant drive thru or over yet. I also like having the plastic molding cause it protects the paint from Sage brush and door dings.

I just got back from a 2500mile trip. I drove the whole trip. i went from Pocatello to Fresno going across 80 thru Reno then down 50. I drove from Fresno to Morgan Hill and back on 1/2 tank.
When I drove home we across the desert on highway 58 to 15. Then north home. I did see a lot of Z,s on 15 heading towards LA.
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Old 01-21-2005, 10:10 PM
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Anyone know who makes a set of long tube headers for this truck? I've been told that Supermaxx could be the best, but I'm having a hard time finding a retailer. I'd also like to install a larger y-pipe. If I go with the long tubes, I may have to have one custom made.

I'll be doing this after the Z is back and running. I'm just doing a bit of research now.
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Old 01-22-2005, 05:13 AM
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Have you checked out summit racing? jegs? paw? I don't know if they have Supermax, but they have alot
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Old 01-25-2005, 08:51 PM
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Thanks, I'll check it out.
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Old 01-25-2005, 09:25 PM
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NICE yeah My dad has a 2001 GMC Sierra Extended cab. it also comes with the 5.3L vortec V8. We currently justa have a flow master and a set of edelbrok headers from Jegs. we are saving up to supercharge it. we have a pretty good quote with Procharger. the package is 4900$. it is worth every penny tho. this is what it includes;

Supercharger
K&N intake
FMIC
all of the piping
larger injectors
superchips ECU tuning (removes speed limiter)
high flow fuel pump

U can safely boost up to 12 PSI. if U add a bigger throttle body and spacer. forged pistons, aluminum heads, and conecting rods. then u can do 18 - 22 PSI. and U probably be working betwen 500 - 650 RWHP. i've done the math.

Now if U add 2 oil coolers 1 for motor and 1 for trany. a stronger drive shaft and tourque converter a Z06 drive shaft. U will be spanking on lightningas and SRT10's oh yeah did I mention U can still offroad?

Last edited by bardabe; 01-25-2005 at 09:30 PM.
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Old 02-18-2005, 04:11 PM
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You also might want to check with Borla. I am going to use their system on my 02 Avalanche. They make a sweet cat bak system with dual exhaust running straight back. I am going to put in my Cold Air Intake first then do the exhaust otherwise the exhaust would not make a difference.

Just a thought.
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Old 02-18-2005, 08:52 PM
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I have the Gibson cat-back system already installed. Dual out the back.
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Old 02-21-2005, 10:25 AM
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Look 91 U might be intrested this is what our truck sounds like. it's only got a set of flow masters. and a K&N intake cone

he he he http://www.geocities.com/memorockz/truck.wav
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Old 02-21-2005, 08:52 PM
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The Gibson isn't as loud as the flowmaster, but it flows better, so it makes more power. I have a MAC intake; which fits better than the K&N as well.

Thanks for the suggestions though.
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Old 02-22-2005, 06:45 PM
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I recorded the sound from inside the cabion that is Y it's nto that loud it be hella louder from outside. Hope UI noticed that little hammer I did.
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