engine swap

hiofsr · November 24, 2003

Any thought on switching the 4.8L out of my 2000 siera for a 405hp ZO6 corvette crate engine (gm part number 12562190)? I've got some bad spark knock so why not get the LS-6 engine to replace it? will the emisions all hookup and funtion properly, has anyone tried this?

TROYROBO · November 24, 2003

welcome aboard------sounds like a swap--wouldn't mind that myself

SportSide 5.3 · November 27, 2003

I've heard of people putting a 350 windsor in a Mazda so I bet it would all work out. Plus, I believe the engines (4.8,5.3,5.7L) can use each others parts in certain cases or in all cases. Head over to www.LS1tech.com and see if you can find some more information on this.

Wingnut · November 27, 2003

I believe the valve train is waaaay different.

You would also have to change out the entire electronics package.

I have a friend that swapped the 6.0 liter in for a 4.8.....Those were his main gripes. It wound up costing him much more than just the cost of the new motor.

But (other than the money) it can be done pretty easily. He said just about everything bolted right in.

Just my .02

GmPartsDirect.com · November 29, 2003

Any thought on switching the 4.8L out of my 2000 siera for a 405hp ZO6 corvette crate engine (gm part number 12562190)? I've got some bad spark knock so why not get the LS-6 engine to replace it? will the emisions all hookup and funtion properly, has anyone tried this?

Yes this swap will bolt right in using your truck intake and wiring. Get your PCM reprogrammed from LS1 Edit are PCMforless.com.

Check this link out for crate engine.

http://www.gmpartsdirect.com/results.cfm?s...1&partnumber=C5

Thanks, Marc

GMPartsDirect.com

http://www.gmpartsdirect.com/results.cfm?s...number=SS-Truck

SportSide 5.3 · November 30, 2003

This is what flyer had to say from the Truck forum over at LS1TECH.

"The F-body car intake sits to low to put on our trucks. It will hit the water neck on the pump. I don't think the water pump will fit on because of other things. I wonder if it if you had E-fans? As far as the LS6 conversion, it wouldn't apply to our engines since they are different displacements, but of course the cam and the heads will work on there.

I would just go with the head/cam package. Although, if the price is right, you could sell the intake and the water pump and come out on top since the kit includes all the gaskets and bolts you would need."

I hope this helps......

Farmtruc · December 13, 2003

The long block will swap over very easy, why not just replace the long block and keep all the truck front accessories and intake.

I just did one of these swaps last weekend. 2002 ec 4.8L --> LQ9 6L, with 224 cam. It turned out great and everything off of the 4.8L swapped over fine.

The truck runs great, but you'll need pcm tuning for sure, the pcm doesn't like adjusting from a 4.8 to a 6L, lol.

good luck and enjoy the new engine,

allen

02denali · December 13, 2003

oh yay. do it. oh yay hey gmpartsdirect do they sell the side skirts for the ss's and how much are they.

alwcurlz · November 11, 2008

The long block will swap over very easy, why not just replace the long block and keep all the truck front accessories and intake.

I just did one of these swaps last weekend. 2002 ec 4.8L --> LQ9 6L, with 224 cam. It turned out great and everything off of the 4.8L swapped over fine.

The truck runs great, but you'll need pcm tuning for sure, the pcm doesn't like adjusting from a 4.8 to a 6L, lol.

good luck and enjoy the new engine,

allen

Wow, this is an old topic..anyway... I was wondering if you could provide any input for a 4.8 to 6.0 swap? Jonesz0003 has ideas of tuning up his 4.8 or swapping to a 6.0. Here's the forum link: 2003 4.8l Silverado, More Power

flyin6 · November 12, 2008

This would be an easy swap! Just use the intake package from your truck and have the computer retuned. I have done a lot of work with the LS6. Definately a street friendly motor, but not the one I would choose for a truck. It has a redline which the factory set at 6500. My retuned LS6 had it's redline set for 7,000 RPM street, and 7300 for the track. The motor will live forever at those RPM's, HOWEVER...I wouldn't want to sling a gallon of fluid around in a heavy torque convertor at those speeds. This motor is a rev happy monster that has all sorts of power that you simply can't get to.

I think the better play would be going to the 6.2 (BY FAR) 378 cu in vs 346 cu in for about the same price. In vette form it makes, what 436hp?? Best of all that power is much lower in the RPM band where you use it all the time. I drive my Denali with the 6.2 and am VERY IMPRESSED by the torque. Ablip of th throttle at 70 mph and that truck is at 90 in seconds. All that with better than 16MPG.

The cheapest solution would be to buy a used LQ4 6.0 and install the L92 heads and intake. All a small cam and you would economically be over 500HP with gobs of torque. Or just put a larger bump stick in the L92 6.2L and have even more! decisions, decisions, decisions

mike4x4 · November 13, 2008

The long block will swap over very easy, why not just replace the long block and keep all the truck front accessories and intake.

I just did one of these swaps last weekend. 2002 ec 4.8L --> LQ9 6L, with 224 cam. It turned out great and everything off of the 4.8L swapped over fine.

The truck runs great, but you'll need pcm tuning for sure, the pcm doesn't like adjusting from a 4.8 to a 6L, lol.

good luck and enjoy the new engine,

allen

i have a 4.8 in my truck and i want to put a 6.0 in it will it work with out having to change the wirin harnes and all that... all i should do is have the com tuned for the 6.0

Schmids5.3l · November 13, 2008

correct

2000DV4.8 · November 13, 2008

correct

Are the injectors different, or no?

Schmids5.3l · November 13, 2008

4.8/5.3/6.0 injectors are...I'm pretty sure they are anyways, they probably change throughout the years tho, IE 1999 5.3 - 2003 5.3 - 2007 5.3. Cars have different injectors and fuel rails. I haven't really looked into a car intake manifold swap, I just know the fuel stuff from trucks doesn't work on car intakes, truck injectors are taller supposedly, which would get in the way of the fuel rail.