2000 Tahoe Z71

Performance modifications, tips & tricks

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Whipped383
Posts: 2104
Joined: Mon Mar 01, 2010 9:12 pm
Location: Salt Lake, 97K1500,ECSB, 383,Whipple,0411,Marine, 03K2500,CCSB,8.1&Allison, Whipple in progress

2000 Tahoe Z71

Post by Whipped383 »

Just picked up this gem for the mere price of $600. I think the wife has claimed it already tho. Anyway has no compression on #4 so hoping its just in the heads. Interior need a good scrubbing so little time and a little elbow grease I hope to have this turd polished up!

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97k15004wd
Posts: 1167
Joined: Fri Oct 27, 2006 7:32 pm
Location: Waikikamukau

Post by 97k15004wd »

NICE!!

z71gmc06
Posts: 1016
Joined: Tue May 08, 2007 12:45 pm
Location: Michigan

Post by z71gmc06 »

Yeah, what he said. Good find!

CrazyHoe
Posts: 6228
Joined: Tue Feb 19, 2008 8:30 am
Location: Mtl; '98 2dr4x4 Tahoe, L31,Hookers Long T, 0411,EFIlive, 4L80-E,dual 3",marine int+inj

Post by CrazyHoe »

X3.

So, broken rings?

97k15004wd
Posts: 1167
Joined: Fri Oct 27, 2006 7:32 pm
Location: Waikikamukau

Post by 97k15004wd »

first project: 4L80E
second project: whipple
third project: 14 bolt
fourth project: 454

thought i'd help you along! LOL!
Last edited by 97k15004wd on Wed Dec 07, 2016 5:59 pm, edited 1 time in total.

Whipped383
Posts: 2104
Joined: Mon Mar 01, 2010 9:12 pm
Location: Salt Lake, 97K1500,ECSB, 383,Whipple,0411,Marine, 03K2500,CCSB,8.1&Allison, Whipple in progress

Post by Whipped383 »

Not sure what my plans are yet. Might be the wife mobile. Might strip everything off my truck and put on it. Definetly wont get a big block tho, the reason for getting it was more economic family hauler. Would like to swap a 9.5 14 bolt tho when the rear end blows. Probably keep the 4l60e and might go AWD

CrazyHoe
Posts: 6228
Joined: Tue Feb 19, 2008 8:30 am
Location: Mtl; '98 2dr4x4 Tahoe, L31,Hookers Long T, 0411,EFIlive, 4L80-E,dual 3",marine int+inj

Post by CrazyHoe »

Whipped383 wrote:might go AWD
If it involves an nv149 and an 4l80e adapter, I'm in.

Whipped383
Posts: 2104
Joined: Mon Mar 01, 2010 9:12 pm
Location: Salt Lake, 97K1500,ECSB, 383,Whipple,0411,Marine, 03K2500,CCSB,8.1&Allison, Whipple in progress

Post by Whipped383 »

Ha Ha. Im still rocking the 4l60 in my truck, they work well for me

Speeder
Posts: 10772
Joined: Fri Apr 30, 1999 9:12 pm
Location: 2015 Tahoe 2WD 5.3L 6L80E, 2008 Colorado work beater, 2003 Dodge Dakota pro-touring project

Post by Speeder »

Mileage eh? Junkyard 6.2L with an 8 speed trans, keep the AFM. Done. Hell, the 6 speeds in a Suburban 5.3 with AFM will pull down in the 20s when you drive them nice. The extra juice in a 6.2 should keep it in 4cyl mode longer than a 5.3.

Whipped383
Posts: 2104
Joined: Mon Mar 01, 2010 9:12 pm
Location: Salt Lake, 97K1500,ECSB, 383,Whipple,0411,Marine, 03K2500,CCSB,8.1&Allison, Whipple in progress

Post by Whipped383 »

by mileage I meant better than my 8.1 gets. while its a very comfortable truck to drive my ass puckers every time i fill it. My other truck pulls of 17 easy but is not as roomy. But for ultimate MPG machine I have thought about an LS swap. Just not sure I want that much project or to spend that kind of money.

Whipped383
Posts: 2104
Joined: Mon Mar 01, 2010 9:12 pm
Location: Salt Lake, 97K1500,ECSB, 383,Whipple,0411,Marine, 03K2500,CCSB,8.1&Allison, Whipple in progress

Post by Whipped383 »

So it appears to me its dropped a valve seat on cyl#4, no compression and leakdown test fills a glove over the tail pipe. the exhaust valve tip is also lower than the intake valve, backing off rocker immediately makes rocker loose, so no preload. Also see slight piston contact through my borescope, valves cant really be seen. They are the 062 castings, I do have a pair of 906 castings laying around but condition is un known. Machine shop says he almost always sees the 906 heads cracked. So Im thinking buy new GM heads and slap this thing back together. So are the 12558060 heads what I want from GM?

Whipped383
Posts: 2104
Joined: Mon Mar 01, 2010 9:12 pm
Location: Salt Lake, 97K1500,ECSB, 383,Whipple,0411,Marine, 03K2500,CCSB,8.1&Allison, Whipple in progress

Post by Whipped383 »

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Well theres your problem!

Found some heads locally for sale for a good price and was able to get it all tore down and back together in a weekend

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Put a new spider in just because

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Got the inside all scrubbed down to with some help from my wonderful helper! this thing was filthy!

CrazyHoe
Posts: 6228
Joined: Tue Feb 19, 2008 8:30 am
Location: Mtl; '98 2dr4x4 Tahoe, L31,Hookers Long T, 0411,EFIlive, 4L80-E,dual 3",marine int+inj

Post by CrazyHoe »

Well done

z71gmc06
Posts: 1016
Joined: Tue May 08, 2007 12:45 pm
Location: Michigan

Post by z71gmc06 »

Nice job. Nice vehicle for what you have into it.

Around 1000-1200?

Your helper is a cutie. I miss those days, my girls are both married now.

Bushwacker
Posts: 110
Joined: Wed Jul 04, 2012 4:05 pm

Post by Bushwacker »

Well how's it run?

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