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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 10-23-2008, 08:25 AM   #1
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Question installing hot cam

DO you guys think if i got the dealer to install the hot cam the car would still be the same? If they pulled the motor out then they could probably put it back to normal but if they decided to leave the motor in and just tear off the front end would they be able to assemble it back to factory condition? Would the gaps still look perfect?
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Old 10-23-2008, 08:31 AM   #2
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If the dealer knows what they are doing then yes. But after owning a 4th gen, I would drop the cradle. Much easier IMO.
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Old 10-23-2008, 08:57 AM   #3
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cam swaps are EASY. I don't see any issues. I could swap mine in less than 2 hours on my 4th gen with the motor in the car.

and yes, it should still be in 'factory' condition with everything looking normal
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Old 10-23-2008, 09:17 AM   #4
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^^^ im with him, swapped mine in my 4th gen in about 3 hours. It was fun too.
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Old 10-23-2008, 09:20 AM   #5
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^^^ im with him, swapped mine in my 4th gen in about 3 hours. It was fun too.
How did you get the lifters out of the way without removing the heads?
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Old 10-23-2008, 09:56 AM   #6
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How did you get the lifters out of the way without removing the heads?


With pen/stick. Magnets in place of the rods
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Old 10-23-2008, 10:09 AM   #7
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LS engines have keeper boxes in the valley, just give the cam a full rotation and they stay in the up position.
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Old 10-23-2008, 10:20 AM   #8
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so what exactly is a hot cam? also i have never had a new cam installed in a car. what benifits does a new cam offer?
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Old 10-23-2008, 10:25 AM   #9
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so what exactly is a hot cam? also i have never had a new cam installed in a car. what benifits does a new cam offer?
The "Hot Cam" is a more aggressive cam made by GM with slightly wider durrartion and higher lift. Think of the cam as the mechanical brain of a engine, it tells the valve how far to open, for how long, and at what point in reference to the opposite valve, thus controling the flow of air and fuel into the cylinder and ultimatly the power output. Remember, an engine is a big air pump, so more air in+more air out=more power!
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Old 10-23-2008, 01:54 PM   #10
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Not to mention the extra 50 horses GM is claiming it will give the LS3 engine!
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Old 10-23-2008, 02:09 PM   #11
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but will it smog?

see the maggie will 50 state smog.
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Old 10-23-2008, 02:14 PM   #12
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According to GMPP smog will not be able to detect a significant enough difference. Not only that, neither will almost everyone who gets one installed. The idle and sound will be about the same. Unless you're a GM engineer who helped develop the engine, you should have no idea until you're pasted to the seat as you accelerate.
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Old 10-23-2008, 02:28 PM   #13
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so there is a GM hot cam for the LS3??
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Old 10-23-2008, 02:52 PM   #14
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Not to mention the extra 50 horses GM is claiming it will give the LS3 engine!
Oh ya, plus the 30+ most people are claiming on headers and cat back for the C6 and your well into the 500hp numbers! Bad @ss!

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so there is a GM hot cam for the LS3??
Yes, it's the same one for the LS1, LS2, LS6, etc.
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Old 10-23-2008, 06:28 PM   #15
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so the best route to change the cam would be to pull off the front end?
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Old 10-23-2008, 06:38 PM   #16
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yup
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Old 10-23-2008, 06:48 PM   #17
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so the best route to change the cam would be to pull off the front end?
I would suspect you could remove the serpentine setup and pull the radiator. After that its all about thinking happy thoughts and holding your tounge just right.
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Old 10-23-2008, 06:50 PM   #18
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Quote:
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LS engines have keeper boxes in the valley, just give the cam a full rotation and they stay in the up position.
while that is a great idea... and ive done about 7 LS camswaps. on the 7th one, we had a lifter back out and drop. granted we got it out with a magnet, but if you are going to do it that way, shut off the stereo, pray you dont have an earthquake or that someone doesnt bump the motor too hard.

if it were me, id just pull the lifters.

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so the best route to change the cam would be to pull off the front end?
the front end of the motor. along with the radiator and probably the condenser.

http://www.ls1howto.com/index.php?article=23

cam swap on an LS1 4th gen
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Old 10-23-2008, 08:16 PM   #19
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If it's GMPP, is it covered on warranty if the dealer installs it? Any effect to engine warranty?

No need to change lifters, rod, etc. Just tune afterwards?

Does it effect MPG?
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Old 10-23-2008, 08:27 PM   #20
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If it's GMPP, is it covered on warranty if the dealer installs it? Any effect to engine warranty?

No need to change lifters, rod, etc. Just tune afterwards?

Does it effect MPG?
considering the lifters/rods/etc will be brand new, you shouldnt need to worry about changing them.

and a hot cam should work with the stock valvespring max lift. now if you go with a bigger cam, you will need to make sure your valvesprings are up to the job.
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Old 10-23-2008, 08:33 PM   #21
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Old 10-23-2008, 11:47 PM   #22
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How hard do you think it'll be to get the dealership to give it the ls376/480 flash when they're done? I'm assuming the new cam needs a different tune, and the official program should not violate any warranty you're trying to keep by having the dealership swap them.
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Old 10-24-2008, 06:09 AM   #23
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Quote:
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The "Hot Cam" is a more aggressive cam made by GM with slightly wider durrartion and higher lift. Think of the cam as the mechanical brain of a engine, it tells the valve how far to open, for how long, and at what point in reference to the opposite valve, thus controling the flow of air and fuel into the cylinder and ultimatly the power output. Remember, an engine is a big air pump, so more air in+more air out=more power!
Anyone know the part number and a link to where I can see this Cam?
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Old 10-24-2008, 08:01 AM   #24
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IT's on the GM Performance Parts website. Here is a link.

https://store.gmperformanceparts.com...chText=Hot+Cam
Last one on the page.

You will also need a 3 bolt 4X Cam gear. The LS3 cam gear is now a single bolt design. A LS2 non GTO gear would work. The chain and tensioner are good to go.

This modification would not be covered under warranty. Also GM does not have a calibration that would work in the Camaro. As you know GM Performance Parts has a controller that is available for their crate LS376/480. That controller is not compatable with the Camaro.

I am sure that most tuners would be able to tune that cam change.

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Old 10-24-2008, 08:07 AM   #25
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Oh ya, plus the 30+ most people are claiming on headers and cat back for the C6 and your well into the 500hp numbers! Bad @ss!



Yes, it's the same one for the LS1, LS2, LS6, etc.
LS3 heads take a completely different cam profile than LS1/2/6 based stuff. the heads are quite different. Huge runners and a lot of flow

I know it will fit and function, it just takes a different grind.
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