billyboy47

I believe your the only one that understands.

billyboy47

BINGO! I keep my low mileage engine with a Chevy installed cam and retain my warranty.

v26278

For use on public roads, I dont think GM can legally install engine parts that deviate from the stock EPA validated specs. The engine would have to be validated with and without the cam, which is likely too expensive to justify. Pretty much all the GM performance parts are sold for "off-road use only" nudge nudge wink wink. I think it amounts to a little more than a nudge and a wink if GM authorizes their dealer to install the gear in your street car.

ProfessorDeath

Mostly warranty issues. Plain and simple.

billyboy47

Unless you BUY their crate engine.

maustin195

With the crate engine I would imagine the warranty would only cover the engine and void the rest of the powertrain coverage.

irok

I work on 3 of these engines.they pass California emissions as easily as the stock cam and aren't any more stressed than stock.they have less lift than the stocker and just as reliable.GM thinks their reliable enough to offer them with a 2 year 50,000 mile warranty

unclecookie

If you don't want to be embarrassed, just let the new Camaro or Mustang go on their way. You don't have to race everyone that challenges you. There is always going to be someone faster than you. Even if you did get your extra 50 horsepower, are you going to be satisfied? I doubt it. JMHO

theblue

Emissions is enough of a reason, but there are plenty more if you need them.

irok

read post 27

KABAL182

Guys GM will never offer multiple HP versions of the same engine. The 60's aren't going to happen with a 436hp, 480hp, LS3 option. The tuning would be different because of the different spec engines. Corporate Fuel requirements would be harder to meet. And lastly I myself would never be confident having any warranty work done at a dealer if I had a "special" optioned car. How many poor guys have have nightmare stories just getting a oil change with a "DRY SUMP SYSTEM" and the techs over filled or under filled etc. Way to much trouble for the manufacturer , we were lucky to get 3 C6 versions of corvettes each with its own performance threshold. LS3, LS7,LS9.

billyboy47

No one takes time to read what others have posted so we keep getting the same answers over and over. I didn't think emissions had anything to do with the Chevy engine otherwise they would have mentioned "not for sale in California." Which we all know is very strict when it comes to cars.

billyboy47

So your saying that our cars wouldn't give those 2 cars a run with a little HP boost? That's hard to believe when they weigh a little more than the corvette.

unclecookie

No, that's not at all what I said! My point was, if you are not satisfied with what you have now, you will never be permanently satisfied with just another 50 horsepower. Eventually you will want more, especially when that Camaro or Mustang you choose to race has also added horsepower to their cars. Been there, done that! That's why I choose to keep my car as it came from the factory. I don't care if someone else is faster than me. I enjoy my car the way it is.

thegame

Wait what is this "just let it go on their way" that you speak of? I have never heard of this method

simplegto

You think about resale? Most here would not buy anything with engine work and some dealers won't take them as trades. It is not about who did the work but about the way the car was driven.

96GS#007

So lemme see if I understand.....

People whine and complain to no end about dealers and their workmanship.

Given the above, you expect GM to trust random dealers to modify your engine and then honor the factory warranty.

I can see there being a select dealer network that could accomplish this if GM saw a business case to offer it. However, not every run of the mill dealer would qualify or want to participate.

You want a warranty, buy the crate engine. It's assembled in a controlled environment and that's why GM has confidence to offer the 2 year warranty on it. Keep in mind, it's only the *engine* that gets that warranty. I'll bet if something in the driveline goes south, GM will say "too bad".

Kent1999

Do you know how much it costs to validate an additional drivetrain package for EPA? It is far from cheap... some sources quoting many hundreds of thousands of dollars.

PD has it right. And remember, the entire powertrain has a factory warranty, not just the motor. The LS3 is quite stout enough to handle the additional HP, but that's not to say the transmissions and other driveline parts can take the higher HP *reliably* for a guaranteed 100,000 miles.

Would you be happy if GM offered to install the cam -- keeping the engine warranty, but voiding the rest of the powertrain? I suspect you would NOT find that acceptable.

billyboy47

You have a point. But like I stated, 40 more HP is all I'm looking for. Like others stated, going more than that could be a little much for the tranny which is the last thing I need.

Roger O'Dell

The eng's are great I put the ls3 480 in a 59 Impals, and an ls3 525 in a 63 split window. If you want a new over the counter motor 3 hp options 430,480,525