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HP & TQ for a 04 8100?

04GMC8100HD

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R Dogg 56 Senior Enthusiast

R Dogg 56

Posted
Posted

:smash::sleep::cool::lol::D

 

I've looked all over the GM main site, GMC site, the Vortec adjunct, and even the Chevy site, and they all say 340/455 for 2003, but not a word on the 2004. Only thing I saw for 2004 were a few new models, but nothing on the 8100. Maybe I didn't look hard enough, but do you remember where exactly you saw the low numbers? Were they on a spec sheet for GMC, or on a seperate page from the GM corporate site ?

 

Hope to be of more help to you once I know what the dilly-yo :D

04GMC8100HD Enthusiast

04GMC8100HD

Posted
  • Author
Posted

I saw it when I was building my truck on gmbuypower.com. I selected the 8100 option and it came up 320hp and 440tq. Hopefully it's just a glitch in the system.

 

Randy

Zane Senior Enthusiast

Zane

Posted
Posted

Remember guys, there is a lower rated version for the suburban. :smash:

ridnlow Enthusiast

ridnlow

Posted
Posted

When i went to GM Buy Power the only automobile i could build for 2004 was a Pontiac... so i decided to build a 2003.. and ill paste the engine options..

 

ENGINE

Engine, Vortec 8100 V8 SFI (320 HP [253.6 kW] @ 4200 rpm, 440 lb.-ft. [614.2 N-m] @ 3200 rpm)

Code: L18 $850.00

Engine, Duramax 6600 Turbo Diesel V8 (300 HP [223.8 kW] @ 3100 rpm, 520 lb.-ft. [702.0 N-m] @ 1800 rpm)

Code: LB7 $5,010.00

Engine, Vortec 6000 V8 SFI (300 HP [223.8 kW] @ 4400 rpm, 360 lb.-ft. [486.6 N-m] @ 4000 rpm)

Code: LQ4 $0.00

1BADHD Enthusiast

1BADHD

Posted
Posted

All 04's are getting a good boost across the board.

 

Engine Specs

 

Click on TRUCKS. Then choose which model. Then click SPECIFICATIOns on the left of the screen. 8.1 is getting 340/455. 6.0 is getting325/365, 5.3 is 295/330, 4.8 is 285/295. :fume:

ShortCrew Enthusiast

ShortCrew

Posted
Posted

In looking at that article, I see their DROPPING power by 10hp on the '04 big block.

 

Quote....

 

The Duramax 6600 6.6L diesel V-8 - with world-class performance in a remarkably quiet package - kicks out 300 hp (224 kw) at 3100 rpm and 520 lb.-ft. (705 Nm) of torque at 1800 rpm. An optional Vortec 8100 8.1L V-8 gas engine has 330 hp (246 kw) at 4200 rpm and 455 lb.-ft. (617 Nm) of torque at 3200 rpm. The Vortec 6000 V-8 produces 300 hp (224 kw) at 4400 rpm and 360 lb.-ft. (488 Nm) of torque at 4000 rpm.

1BADHD Enthusiast

1BADHD

Posted
Posted

You have to go to specs. It appears it depends on what the big block is put in. In the 2500HD its 340/455. In other models its less.

hirsch21n Enthusiast

hirsch21n

Posted
Posted

THIS IS WHAT I SEE FOR 2004 SIERRA HD ENGINES HOPE IT MAKES SENSE

 

Engines Vortec 6000

6.0L V-8 (LQ4) Vortec 8100

8.1L V-8 (L18) Duramax 6600

6.6L V-8 (LB7)

Type: 6.0-liter V-8 8.1-liter V-8 6.6-liter V-8

Displacement

(cu in / cc): 364 / 5967 496 / 8128 403 / 6599

Bore & stroke

(in / mm): 4 x 3.62 / 101.6 x 92 4.25 x 4.37 / 107.95 x 111 4.06 x 3.90 / 103 x 99

Block material: cast iron cast iron cast iron

Cylinder head material: cast aluminum cast iron cast aluminum

Valvetrain: OHV OHV OHV

Ignition system: coil near plug, platinum- tipped spark plugs, low-resistance spark plug wires coil near plug, platinum-tipped spark plugs, low-resistance spark plug wires compression, glow plug start aid; platinum-tipped spark plugs, low-resistance spark plug wires

Fuel delivery: sequential fuel injection sequential fuel injection direct injection diesel with high pressure common rail

Compression ratio: 9.4:1 9.1:1 17.5:1

Horsepower

(hp / kw @ rpm): 300 / 224 @ 4400 340 / 254 @ 4200 (L18)

325 / 242 @ 4000

(MD L18 with LRW option)

295 / 220 @ 3600

(MD L18 with LRZ option)

225 / 168 @ 3600

(MD L18 with LQR option) 300 / 224 @ 3100

Torque

(lb-ft / Nm @rpm): 360 / 488 @ 4000 455 / 617 @ 3200 (L18)

450 / 610 @ 2800

(MD L18 with LRW option)

440 / 597 @ 3200

(MD L18 with LRZ option)

350 ./ 475 @ 1200

(MD L18 with LQR option) 520 / 705 @ 1800

Recommended fuel: 87 octane 87 octane Diesel

Maximum engine speed (rpm): manual: 5600

auto: 5600 manual: 5000

auto: 4000 3250

Emissions controls: three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system three-way catalytic converter, exhaust gas recirculation, positive crankcase ventilation, evaporative collection system turbocharged, intercooled, catalytic converter system

:cheers:

  • 2 weeks later...
hirsch21n Enthusiast

hirsch21n

Posted
Posted

just checked with two dealers on their puters,& one phone call to the general. bad news i was wrong!!!! the hp of the L18 8100 ENGINE IS 330HP---450FT/LBS TORQUE. NO TYPO OR GLITCH. COULD THEY JUST LOWERED IT FOR INSURANCE, OR REALLY TOOK AWAY 10 HP & 15 TORQUE. regards LIONEL. ANYONE KNOW FOR SHURE?? TKS :cheers::flag:

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