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Corvette Z06 Cam In A 5.3l

PainlessTexas

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PainlessTexas Enthusiast

PainlessTexas

Posted
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I just bought a 2008 2WD Silverado Crew Cab w/ 5.3L. Was told that you can install the Z06 cam and springs in the engine and pick up around 30 HP and not sacrifice MPG. Also told that the factroy ECM would compensate for the cam change after a few start/stop cycles. Sounds almost too good. Anyone done this swap? Of course there are warranty considerations. So if any GM people are reading this please toss in your 2 cents worth on this. Not looking to build a race truck. Just want some more HP. Considered the 6.0L but I understand they are gas hogs. I drove an '03 6.0L on a road trip recently and it definitely sucked the gas.

2000DV4.8 Senior Enthusiast

2000DV4.8

Posted
Posted

I'd look into a custom tune before tearing apart the motor. Do a search on here, you'll find plenty of info.

 

Welcome to the site, too. :rollin: We'll also need pictures of the truck. :sleep:

Griffin86 Enthusiast

Griffin86

Posted
Posted
I'd look into a custom tune before tearing apart the motor. Do a search on here, you'll find plenty of info.

 

Welcome to the site, too. :rollin: We'll also need pictures of the truck. :sleep:

 

+1 Welcome! :sleep:

Draenor Senior Enthusiast

Draenor

Posted
Posted

You can. You will only net about 10-15 horses. You will want to change the intake, heads and the Torque converter. Then get a tune. Once you change a cam, you move the whole rpm range around.

 

IMO since you 'just' bought a new truck, get a tune. No need to tear apart the motor for just a cam, unless you want to do it right.

24v Enthusiast

24v

Posted
Posted

I'm not so sure you can run a non AFM cam in an AFM engine. I'm pretty sure the AFM cams require a smaller base circle.

PainlessTexas Enthusiast

PainlessTexas

Posted
  • Author
Posted

I did not want to put a tune on it. If it goes in for warranty they can see a tune, and they're looking. After the warranty, I'll be doing several changes. We have HP Tuner in our R&D department so I can play with that later. The cam sounded interesting as it would be hard to detect. I was told you can swap the cam without pulling the intake or radiator on the trucks. Just enough room to get it out without pulling the rad.

 

Good point on the AFM. That will require some research.

 

On changing intake, etc. I wouldn't think 15 HP would require a new torque converter. Am I missing something here? New intake and heads would probably increase HP even more but I wouldn't think they would be necessary. Once again, trying to keep the warranty issues in mind.

2000DV4.8 Senior Enthusiast

2000DV4.8

Posted
Posted
I did not want to put a tune on it. If it goes in for warranty they can see a tune, and they're looking. After the warranty, I'll be doing several changes. We have HP Tuner in our R&D department so I can play with that later. The cam sounded interesting as it would be hard to detect. I was told you can swap the cam without pulling the intake or radiator on the trucks. Just enough room to get it out without pulling the rad.

 

Good point on the AFM. That will require some research.

 

On changing intake, etc. I wouldn't think 15 HP would require a new torque converter. Am I missing something here? New intake and heads would probably increase HP even more but I wouldn't think they would be necessary. Once again, trying to keep the warranty issues in mind.

 

You don't think they'll notice the cam...? :)

Draenor Senior Enthusiast

Draenor

Posted
Posted
I did not want to put a tune on it. If it goes in for warranty they can see a tune, and they're looking. After the warranty, I'll be doing several changes. We have HP Tuner in our R&D department so I can play with that later. The cam sounded interesting as it would be hard to detect. I was told you can swap the cam without pulling the intake or radiator on the trucks. Just enough room to get it out without pulling the rad.

 

Good point on the AFM. That will require some research.

 

On changing intake, etc. I wouldn't think 15 HP would require a new torque converter. Am I missing something here? New intake and heads would probably increase HP even more but I wouldn't think they would be necessary. Once again, trying to keep the warranty issues in mind.

I am not sure with the AFM also.

 

The Z06 cam is for an engine designed for high horsepower on a car. This is something the truck is not really engineered for. Our trucks are designed with torque in mind. When you swap in this cam, you are not just adding horse power, your moving the entire power band around. Cams can be tricky, why dont you come over to Here, and look around. There are numerous upon numerous threads relating to cams.

 

As for warranty issues, All GM has to do is put a scanner on the ECM and notice the parameters have been moved around to compensate for the cam. They will know. If you have HPT, play with it. Once you dial in the tables, you can do alot to really wake the 5.3 up. And if you have to go to the dealer, just load the stock tune, the dealer will never know.

24v Enthusiast

24v

Posted
Posted
i think they will detect the timing isnt the same or the firing order isnt the same with the cam.

What does a cam have to do with firing order or ignition timing? :D

24v Enthusiast

24v

Posted
Posted
And if you have to go to the dealer, just load the stock tune, the dealer will never know.

They would know the calibration has been changed, just not what you did to it.

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted
And if you have to go to the dealer, just load the stock tune, the dealer will never know.

They would know the calibration has been changed, just not what you did to it.

 

 

:D

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