6.2L (L9H) Owners - Get all your questions answered here

[RyanbabZ71]

Engine information and HP/Torque curve

http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=39827&vehicleid=10430&section=engineAxle

 

V8, Flexible Fuel, 6.2 Liter [L9H]Incl.Incl.

(N/A w/Axle Ratio-GU4) (N/A w/Suspension Pkg-Z85 ex When in Combo w/Trailering Pkg-NHT) (Std w/Trailering Equipment-NHT) (Req's Trailering Equipment-Z82, Auto Trans-MYC & Suspension Pkg-Z60 or Z71)

Includes Power F&R Disc Brakes & HD External Engine Oil & Transmission Oil Cooling.

 

Suspension Pkg , High Performance [Z60] 3.23 rear end

Suspension Pkg , Off-Road [Z71] 3.23 rear end

Trailering Pkg, Max Plus Pkg-PCM[NHT] 3.73 rear end

 

Axle Ratio, 3.42 [GU6]

(Req's LMG 5.3L Engine on Work Truck 2WD) (Req's L9H 6.2L or LMG 5.3L Engine on LT 2WD)

 

Axle Ratio, 3.73 [GT4]

(Std w/Trailering Pkg-NHT) (Req's L20 4.8L Engine on 2WD Models) (Available & Included Only w/Trailering Pkg-NHT on LT 4WD & LTZ)

 

Automatic, 6-Spd HD w/Overdrive [MYC]

 

GVWR, 7000-lb [C5W]

(1659-lb Payload)

 

GVWR, 7300-lb [C6A]

(Payload N/A on LT & LTZ 4WD; 1509-lb Payload on Hybrid 4WD) (Available & Included Only w/Trailering Pkg-NHT on LT & LTZ 4WD)

 

*Data pulled from kbb.com 11-29-11

 

Photos are of a 2010 6.2L Un-modified and also the same engine with an Airraid MIT intake tube installed

[RyanbabZ71]

Also please stay on topic. Any posts off topic will be removed (you have been warned)

[2010LTZ4x4]

This is great!

Thanks RyanbabZ71 for making a sticky on the 6.2

[Carder09]

What's the high performance package about.

[RyanbabZ71]

Tell tale sign of a 6.2 (single rear exit exhaust passenger side)

 

What's the high performance package about.

 

 

Its more of a sport suspension.

 

(Z60) High-Performance Suspension Package

Edited November 30, 2011 by RyanbabZ71

[2010LTZ4x4]

Little more info for anyone that would be interested.

more 6.2 engine specs.doc

2010 Hydra-Matic 6L80.doc

2010 Hydra-Matic 6L80.doc

more 6.2 engine specs.doc

2010 Hydra-Matic 6L80.doc

more 6.2 engine specs.doc

2010 Hydra-Matic 6L80.doc

more 6.2 engine specs.doc

[2010LTZ4x4]

Tell tale sign of a 6.2 (single rear exit exhaust passenger side)

 

What's the high performance package about.

 

 

Its more of a sport suspension.

 

(Z60) High-Performance Suspension Package

 

I have the sport suspension and for a 6000lbs truck it handles pretty good. Would be even better with a rear sway bar though.

[Wolfmanjohn]

Thanks! This is some good ol' ego boosting educational information and knowledge!

[ChevyTech77]

The L9H club. I like it!

[2010LTZ4x4]

Quoted from the GM info. on the L9H 6.2

Theres more great reading in the link I put in the above thread.

Like we need any more reason to love our 6.2 powered trucks.

 

The new Vortec 6.2L is a fourth-generation descendent of one of the most important and successful engines in automotive history-the original Chevrolet small-block.

 

The 6.2.L is the most powerful of GM's Gen IV Vortec V-8s; indeed, it is the most powerful small-block truck engine ever, with the most torque. It delivers new levels of refinement to go with brute strength, and industry exclusive technologies such as cam-in-block variable valve timing.

[GPGuy]

I'm just going to hang out here and hopefully I don't get kicked out and dream about buying a 6.2L in my next truck!

[Garrett Street]

I've been reading on this forum and haven't been able to find a good towing review from any 6.2 owners. Everything I've read seems to say it's the best half ton tow rig right now (Ford 6.2 is STILL untested). I'm def going to try and find a 6.2 in my next truck. They're simply amazing! Jealous..

[manley]

What else does the NHT package get you?

I have the 6-speed with the HD tow package, Z82, 9.5" rears, 17" discs, and was just wondering what I didn't get...

Thanks!

[Stevens03]

What else does the NHT package get you?

I have the 6-speed with the HD tow package, Z82, 9.5" rears, 17" discs, and was just wondering what I didn't get...

Thanks!

 

 

Well, it gets you the 6.2L, HD springs, HD locker, and 3.73 gears mainly.

 

Off GM's website.

When equipped with the awesome Max Trailering Pack, a Silverado^® Crew Cab™ can haul up to 1980 lbs.¹ of whatever it takes to get the job done, and Extended Cab models can tow up to 10,700 lbs.² The package includes the powerful Vortec^® 6.2L V8 SFI engine, heavy-duty automatic locking rear differential, Handling/Trailering Suspension Package, 9.5" rear axle, 3.73 rear axle ratio, 4 – 17" x 7.5" 6-lug aluminum wheels, P265/70R17 on-/off-road blackwall tires, fog lamps, front and rear disc brakes and Trailering Package. Standard Box only. Not available on Z71^® Off-Road Package.

¹ Maximum payload capacity includes weight of driver, passengers, optional equipment and cargo.

² Maximum trailer weight ratings are calculated assuming a properly equipped base vehicle plus driver. See dealer for details.

 

 

In order to choose this feature, you also need to add: Vortec 6.2L Variable Valve Timing V8 SFI engine -GVWR, 7300 lbs. (3311 kg) -Rear axle, 3.73 ratio17" x 7.5" 5-spoke aluminum wheelsOn-/off-road blackwall tiresAntilock 4-wheel disc brakes

Edited December 5, 2011 by Stevens11

[RyanbabZ71]

Leaf springs and gears. They both are available with the G80 locking rear end