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04 4.8L 5MT SC build.


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#1 SIXJAK

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Posted 05 February 2013 - 03:37 PM

Hi all this is my build thread. I purchased this truck on Jan 5. It was a clean non smoking truck with 148k miles on it. It took a while to find a 4.8 with a manual. That is what I wanted. I was also open to a GMC but honestly the more I looked at the Chevy, the more I liked the cat eyes. The truck I found had 20" wheels and a Flowmaster weld in. I'm not sure which muffler it is but it sounds pretty good.Posted ImagePosted ImagePosted ImagePosted Image

First order of business was removing the chrome wheel well trim. Not my taste.Posted ImagePosted Image

Luckily there wasn't any major corrosion underneath the chrome trim.


I purchased a Magnuson TVS 1900 SC a couple of weeks ago. It was installed in 5.5 hours by Whiteside Customs in McKinney, TX on Superbowl SundayPosted ImagePosted ImagePosted ImagePosted Image

I also removed the bumper last Thursday.Posted Image
I purchased a steel Street Scene roll pan from Summit Racing that is being prepped and painted as I write this by Whiteside Customs.

They are also installing a set of ceramic coated Pacesetter LT's/mid pipe-not my installers first choice he wanted me to go with KOOKS but that's all I can afford at the moment. He has a different name for the Pacesetters lol.

Truck should go on the dyno Thursday or Friday and I'll report back in a few days.

Edited by SIXJAK, 05 February 2013 - 04:12 PM.

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04 Silverado 4.8L/5MT - Ceramic coated Pacesetter LT headers/mid pipe, Flowmaster weld-in muffler with turndown, 20" MB Motoring Wheels. Magnuson TVS1900 SC HPTuners custom tune.

10 2LT RS Camaro 6MT - IPF SC kit w/ Vortech V3 Centri, Stainless Works LT headers, Random Tech HFC's, ARK DT-S mirror polished 304 SS catback, VMAX TB, 9mm insulator, ported IM, BC Racing BR Type coil overs, Pfadt adjustable sways and endlinks, Pfadt rear arm package, Pfadt differential bushings, BMR rear cradle full bushing kit, SS Brembo brake upgrade, custom built racing clutch.

12 Jeep Wrangler Unlimited - stock.....for now.

#2 LD03SS

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Posted 05 February 2013 - 04:00 PM

Looks like your going the right path, nice truck man
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#3 diggerdan11

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Posted 05 February 2013 - 04:05 PM

Very nice. How is the power on that 4.8? I have always heard the 4.8L sucks as a stock engine, but with some power adders it can be a pretty sweet engine.
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#4 Chris

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Posted 05 February 2013 - 04:15 PM

Very nice. How is the power on that 4.8? I have always heard the 4.8L sucks as a stock engine, but with some power adders it can be a pretty sweet engine.


I had the 4.8, it was a good engine. Great on gas, ran good, and then Justin from black bear woke it up. And it became better

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#5 jddmj

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Posted 05 February 2013 - 04:17 PM

I rock a 4.8 as well. A couple of bolt ons, and your doing good.

I rock a 4.8 as well. A couple of bolt ons, and your doing good. But not a 6.0 though lol
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#6 SIXJAK

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Posted 05 February 2013 - 04:29 PM

Very nice. How is the power on that 4.8? I have always heard the 4.8L sucks as a stock engine, but with some power adders it can be a pretty sweet engine.


With the stick, it stays with a stock v6 Camaro from a dig up to about 70-80 then the wind begins to take its toll.

On hills downshifting into 4th is a must.
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04 Silverado 4.8L/5MT - Ceramic coated Pacesetter LT headers/mid pipe, Flowmaster weld-in muffler with turndown, 20" MB Motoring Wheels. Magnuson TVS1900 SC HPTuners custom tune.

10 2LT RS Camaro 6MT - IPF SC kit w/ Vortech V3 Centri, Stainless Works LT headers, Random Tech HFC's, ARK DT-S mirror polished 304 SS catback, VMAX TB, 9mm insulator, ported IM, BC Racing BR Type coil overs, Pfadt adjustable sways and endlinks, Pfadt rear arm package, Pfadt differential bushings, BMR rear cradle full bushing kit, SS Brembo brake upgrade, custom built racing clutch.

12 Jeep Wrangler Unlimited - stock.....for now.

#7 LilEz02

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Posted 05 February 2013 - 05:06 PM

very interested in this build. ill be watching for updates. looks good
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#8 JC03SS

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Posted 05 February 2013 - 05:29 PM

Good luck with the build its coming along nicely.
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 Zippy tune,volant Cai and ram air tube, Comp cam 224/230 .581 .592 114, Circle D 3000k stall converter, Transgo HD2 shift kit,Vette servo 40k true cool max trans cooler,comp 918 springs,42lb injectors,comp cam chromoly rods,Ported throttle body,long tube pacesetters, magnaflow dual exhaust, 3" dougs cutouts, 160 t-stat, electric fans,blue 10.4mm taylor wires, shopman bowtie, 6k hids, 5 piece street sceen grill, beltech shocks escalade style gauge cluster,blue carbon fiber dipped engine covers, beltech 2 inch rear shackles, SSBC slotted rotors,Styline Cowl hood, amsoil fluids, clear headlight and bumper lights. 305/50/20 good years on chrome 20's.

Go Zippy N Send em Home. .
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#9 SIXJAK

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Posted 05 February 2013 - 05:30 PM

Thanks all. Down the road I plan on installing a Corsa side exit catback. I may do a cam and some heads and change out the pulley to up the boost. Would like to have an honest to goodness 500RWHP truck.

Katskin interior SS or RST instrument panel

Full repaint with stripes.
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04 Silverado 4.8L/5MT - Ceramic coated Pacesetter LT headers/mid pipe, Flowmaster weld-in muffler with turndown, 20" MB Motoring Wheels. Magnuson TVS1900 SC HPTuners custom tune.

10 2LT RS Camaro 6MT - IPF SC kit w/ Vortech V3 Centri, Stainless Works LT headers, Random Tech HFC's, ARK DT-S mirror polished 304 SS catback, VMAX TB, 9mm insulator, ported IM, BC Racing BR Type coil overs, Pfadt adjustable sways and endlinks, Pfadt rear arm package, Pfadt differential bushings, BMR rear cradle full bushing kit, SS Brembo brake upgrade, custom built racing clutch.

12 Jeep Wrangler Unlimited - stock.....for now.

#10 1BAD2K

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Posted 05 February 2013 - 07:38 PM

Nice, gotta love the 1900. So are you from MO, or mckinney tx? Mckinney is just on the other side of town from me.
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Current build: 2006 RCSB 4x4 - LS6, magnacharger, 4l80e, circle D, hydroboost, corsa, arh, beltech, coilovers, nvg149, baer+z06 upgrade, intro wheels... full on SS clone in the making.

#11 KleanKustoms

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Posted 06 February 2013 - 12:27 AM

Damn, I was hoping for a white clone build, but it still looks good. Nice truck man.
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#12 SIXJAK

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Posted 06 February 2013 - 12:37 AM

Nice, gotta love the 1900. So are you from MO, or mckinney tx? Mckinney is just on the other side of town from me.



I live in the modding mecca of Branson, MO. LOL. There are so few options in Southwest MO. I know the owner of Whiteside Customs and I'm on a short tour right now that went through McKinney so I dropped off my truck this past Sat evening. He installs 4-6 Maggie's a month and has it down to a science. He sent me pics and a short video at 2:34 PM on Sunday showing the SC running. I'm giggin in AZ right now and then swinging back through Dallas on Fri and them picking up my truck on Sunday.

Edited by SIXJAK, 06 February 2013 - 12:45 AM.

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04 Silverado 4.8L/5MT - Ceramic coated Pacesetter LT headers/mid pipe, Flowmaster weld-in muffler with turndown, 20" MB Motoring Wheels. Magnuson TVS1900 SC HPTuners custom tune.

10 2LT RS Camaro 6MT - IPF SC kit w/ Vortech V3 Centri, Stainless Works LT headers, Random Tech HFC's, ARK DT-S mirror polished 304 SS catback, VMAX TB, 9mm insulator, ported IM, BC Racing BR Type coil overs, Pfadt adjustable sways and endlinks, Pfadt rear arm package, Pfadt differential bushings, BMR rear cradle full bushing kit, SS Brembo brake upgrade, custom built racing clutch.

12 Jeep Wrangler Unlimited - stock.....for now.

#13 SIXJAK

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Posted 06 February 2013 - 02:48 PM

Damn, I was hoping for a white clone build, but it still looks good. Nice truck man.


Not out of the realm of possibility my friend.
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04 Silverado 4.8L/5MT - Ceramic coated Pacesetter LT headers/mid pipe, Flowmaster weld-in muffler with turndown, 20" MB Motoring Wheels. Magnuson TVS1900 SC HPTuners custom tune.

10 2LT RS Camaro 6MT - IPF SC kit w/ Vortech V3 Centri, Stainless Works LT headers, Random Tech HFC's, ARK DT-S mirror polished 304 SS catback, VMAX TB, 9mm insulator, ported IM, BC Racing BR Type coil overs, Pfadt adjustable sways and endlinks, Pfadt rear arm package, Pfadt differential bushings, BMR rear cradle full bushing kit, SS Brembo brake upgrade, custom built racing clutch.

12 Jeep Wrangler Unlimited - stock.....for now.

#14 SIXJAK

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Posted 09 February 2013 - 06:20 AM

The truck was dyno'd yesterday on a Dynojet 248 and the numbers have me scratching my head a little.
Baseline numbers were:
170RWHP
157RWTQ
Those just seem pathetically low. Like 6 cylinder low. Don't most of these 4.8's put out around 220 or so RWHP?
Post blower numbers:
313RWHP
358RWTQ

My installer explained that this particular Dynojet consistently reads about 10-15HP lower than others and that my wheel/tire combo is responsible for another 20-30 HP loss.

Does this sound right?

At any rate I picked up 143RWHP and 201RWTQ. The Maggie TVS1900 more than doubled my TQ.
I don't have the graphs yet but when I do get them, I'll post them up.

I'm picking it up on Sunday morning and driving it home from McKinney back to MO. Sunday evening I'll post up some driving impressions and maybe take some video.

My goal is a solid 500RWHP so it looks like I have my work cut out for me.
Cam
Heads
Pulley swap
And a different Dyno ha ha.

That is all for now.
  • 0
04 Silverado 4.8L/5MT - Ceramic coated Pacesetter LT headers/mid pipe, Flowmaster weld-in muffler with turndown, 20" MB Motoring Wheels. Magnuson TVS1900 SC HPTuners custom tune.

10 2LT RS Camaro 6MT - IPF SC kit w/ Vortech V3 Centri, Stainless Works LT headers, Random Tech HFC's, ARK DT-S mirror polished 304 SS catback, VMAX TB, 9mm insulator, ported IM, BC Racing BR Type coil overs, Pfadt adjustable sways and endlinks, Pfadt rear arm package, Pfadt differential bushings, BMR rear cradle full bushing kit, SS Brembo brake upgrade, custom built racing clutch.

12 Jeep Wrangler Unlimited - stock.....for now.

#15 JC03SS

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Posted 09 February 2013 - 09:35 AM

Those are good numbers after install. Ill tell you it's gonna be one fun ride home.
  • 0
 Zippy tune,volant Cai and ram air tube, Comp cam 224/230 .581 .592 114, Circle D 3000k stall converter, Transgo HD2 shift kit,Vette servo 40k true cool max trans cooler,comp 918 springs,42lb injectors,comp cam chromoly rods,Ported throttle body,long tube pacesetters, magnaflow dual exhaust, 3" dougs cutouts, 160 t-stat, electric fans,blue 10.4mm taylor wires, shopman bowtie, 6k hids, 5 piece street sceen grill, beltech shocks escalade style gauge cluster,blue carbon fiber dipped engine covers, beltech 2 inch rear shackles, SSBC slotted rotors,Styline Cowl hood, amsoil fluids, clear headlight and bumper lights. 305/50/20 good years on chrome 20's.

Go Zippy N Send em Home. .
  Jasonsig_zpsd0558c87.jpg

2015 Stone Blue Met. GMC Denali 1500
6.2 ecotech V8 8 speed trans.
Volant Cai, 3.5" Magnaflow Exhaust




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