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

RyanbabZ71
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RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
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The NHT leaf springs do have a different part number (as when I was having issues I looked into going that route). I have no idea what the difference is.

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DanMan_S
DanMan_S

This is a video showing how the 6.2L sounds with headers and a corsa catback. The crew cab is my 6.2L, the 2005 extended cab is a 5.3L with a magnaflow muffler welded in.    

gonzoid
gonzoid

finished product  

2010LTZ4x4
2010LTZ4x4

Where did you get the 6.2L badge in you avatar?  Heres the info for the 6.2L badge Top Flight Reproductions is proud to announce the addition of the 6.2L emblem to our emblem product line. This embl

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ChevyTech77 Senior Enthusiast

ChevyTech77

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Posted (edited)

That's pretty much what I was saying in post # 222 but it's interesting to note that neither the Z82 nor the Z85 suspension packages show anything about any heavier springs. In the parts catalog there are only two different part numbers for leaf springs on 1500 series trucks (which I also find hard to believe but I can't argue with the GM parts catalog), NHT/HP2 and NON-NHT/HP2, that's it.

 

HP2 = Hybrid propulstion system.

Edited by ChevyTech77
EX-F150 owner Enthusiast

EX-F150 owner

Posted
Posted

2 questions about the transmission in our NHT trucks.

 

1st, is it any different than the non NHT trucks?

 

2nd, Is it based of the Allison transmission?

 

I have been told that the 6 speed transmissions in our trucks with the NHT package are more heavy duty than the standard 6 speed and that the technology in them is based off the Allison transmisson.

becker87 Senior Enthusiast

becker87

Posted
Posted

yep NHT 3.73 14 bolt,where did you find info about wider springs than non NHT? have info a link?

 

 

Sorry i do not have a link, i know the NHT and non-NHT springs are different as others have stated, i assumed they were wider. I hope somebody can chime in on the exact difference between the two.

 

Ryan, don't the NHT trucks have the tranny cooler, or do all the 6 speeds?

RyanbabZ71 Senior Enthusiast

RyanbabZ71

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Mine has a tranny cooler, it was part of the PDU (power pack plus pkg). It was with the trailering pkg and 6 speed trans

michigan2500hd Senior Enthusiast

michigan2500hd

Posted
Posted

Wondering why our 6.2s have the tailpipe going straight out under the bumper..is it because its a loud engine?..might make a person in a vehicle next to us uncomfortable? Lol..anyone know ??

becker87 Senior Enthusiast

becker87

Posted
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Wondering why our 6.2s have the tailpipe going straight out under the bumper..is it because its a loud engine?..might make a person in a vehicle next to us uncomfortable? Lol..anyone know ??

 

 

Just to distinguish itself from others is the best guess I can come up with.

michigan2500hd Senior Enthusiast

michigan2500hd

Posted
Posted

They sure sound tough at least to me. It seems to un-nerve the wife if she is anywhere close to the back of the truck when I start it. ( hehehe)..wouldn't dream of looking for an aftermarket exhast system for the 6.2 :)

Wolfmanjohn Enthusiast

Wolfmanjohn

Posted
Posted

Wondering why our 6.2s have the tailpipe going straight out under the bumper..is it because its a loud engine?..might make a person in a vehicle next to us uncomfortable? Lol..anyone know ??

 

 

Fewer bends in exhaust piping = freer air flow and healthier sound.

becker87 Senior Enthusiast

becker87

Posted
Posted

Wondering why our 6.2s have the tailpipe going straight out under the bumper..is it because its a loud engine?..might make a person in a vehicle next to us uncomfortable? Lol..anyone know ??

 

 

Fewer bends in exhaust piping = freer air flow and healthier sound.

 

 

The helthier sound comes from bigger pipes, and the one less bend in the exhaust, while it is fewer, im sure has no effect on HP(or extremely minimal)

ChevyTech77 Senior Enthusiast

ChevyTech77

Posted
Posted

I'm pretty sure that the size of pipe was used for less backpressure but making a 90 degree-ish bend, right after the resonator, wasn't going to happen in that amount of space with that size of pipe, is my guess. And an educated one, at that.

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