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Ive been eyeing a base model gmc 2500 or 3500 single rear wheel crew cab truck. They are not a ailable with the 6.2L so I was wondering about swapping in a new LSX 376. Anyone done this or know what all it would take? I was hoping all the accessories and intake and oil pan would swap over. Figured you might have to tune the computer and get plugs and injectors. I dont plan to supercharge this, just wanted more power.
I didnt know they were different. Just wanted more power. I could roll it in my financing and it would have a factory warranty. I think the lsx376 comes with 2yr warranty and if my buddy who is a dealer installed it then I figured they would warranty a gm product too.
Yeah, that's not going to work. And if you think GM is going to warranty it, well, you're wrong. You'll end up with a engine warranty and an out of warranty brand new truck.
If you want to spend a whole bunch of money to make power, pick up a Magnuson supercharger and call it a day. Can have it installed in a weekend instead of hacking up a brand new truck.
Yeah, that's not going to work. And if you think GM is going to warranty it, well, you're wrong. You'll end up with a engine warranty and an out of warranty brand new truck.
If you want to spend a whole bunch of money to make power, pick up a Magnuson supercharger and call it a day. Can have it installed in a weekend instead of hacking up a brand new truck.
I didnt know they were different. Just wanted more power. I could roll it in my financing and it would have a factory warranty. I think the lsx376 comes with 2yr warranty and if my buddy who is a dealer installed it then I figured they would warranty a gm product too.
What is different about the engines?
A bank or lender won't let you finance an engine swap on a new truck.
Ive been eyeing a base model gmc 2500 or 3500 single rear wheel crew cab truck. They are not a ailable with the 6.2L so I was wondering about swapping in a new LSX 376. Anyone done this or know what all it would take? I was hoping all the accessories and intake and oil pan would swap over. Figured you might have to tune the computer and get plugs and injectors. I dont plan to supercharge this, just wanted more power.
Any feedback is appreciated.
The GMC 2500/3500 for 2015&16 come with a VORTEC 6.0 (if not Duramax). I don't believe that is a DI engine. So an LSX should swap.
I've never looked though....to see if they are running the new computer or the old one.
However....
That 6.0 motor can take a lot of boost (just en evo-LQ9)....so throw a whipple on it and and make way more than an LSX without boost. Easy 500+.
Back in 97 I had a vortech on my 97 z28 and loved it but the car wasnt 100% right and I sold it. I was hoping to avoid supercharging but I guess that could be an option. How much is a supercharger these days and what is the best decently priced unit?
Back in 97 I had a vortech on my 97 z28 and loved it but the car wasnt 100% right and I sold it. I was hoping to avoid supercharging but I guess that could be an option. How much is a supercharger these days and what is the best decently priced unit?
Now you have me really curious about which computer they are running with the L96. If they are running the new computer that means any 58X LSX engine can been swapped into the new vehicles (fitment excluded). If they are running the old computer that means you can run any 58X LSX engine in the new vehicles by swapping the computer and the harness.
I'm gonna go look and see what computer they are running.
Now you have me really curious about which computer they are running with the L96. If they are running the new computer that means any 58X LSX engine can been swapped into the new vehicles (fitment excluded). If they are running the old computer that means you can run any 58X LSX engine in the new vehicles by swapping the computer and the harness.
I'm gonna go look and see what computer they are running.
I thought he meant he had a Vortech supercharger on the Z28????
I think that is what he said.....they just happen to share the same name.
My point was the new 6.0L 2500 truck still has the genIV engine, so any LSX motor should swap in there.
I being the path of least resistance person would just slap a whipple on that 6.0L and go from there....cheaper and way faster.....and easily reversed.
But you could always slide an LSX 454 in there and see if 600hp was enough.
OP, superchargers range from $5K to $7K + install....I just like whipples on trucks cuz they run cold, make lots of power at low rpms, and are easy to install.
Nice. Yes I had a Vortech supercharger on my 97 z28. It was awesome. Huge seat of the pants change and ai did head porting cam and computer exhaust at the same time. Not sure if the transmission was giving out or what but it would cut out and kind of bang and sputter at full throttle sometimes. Anyway it wasnt 100%. I didnt think the dealer would finance that in and warranty but I could ask. Thought the gm lsx motor would be an option. 454 would be awesome but figured the 376 was all I could afford.
My brother has a diesel and its a little torq happy driving in traffic where I am 75% of the time and diesel+allison is another 10k.
Just kind of dreaming with this lsx swap. But if someone had done it and lived it I might guve it a whirl. I wish they just offered the 6.2L vortec as an option from the factory. Why only in half tons? I guess epa mileage?
Ive narrowed it down to a 3500 crew cab single rear wheel long bed gas truck. Discussed supercharging and other options with my dealer. He acted like I could finance it in and was going to discuss with his shop department and see what options I had. He thought warranty would be retained.
What about that super charger gm puts on the cadillacs?
I think lsx 376/454 block swap might be too difficult and I wonder what kind of gas mileage I would end up with.
That big of a truck and the money your looking at spending, look at a duramax. If the duramax's stock 397 hp and 765 ft lbs arent enough power for you, an efi tune can add 150 hp to the rear wheels.
My brother has a diesel and its a little torq happy driving in traffic where I am 75% of the time and diesel+allison is another 10k.
I don't know what your dealer is smoking,but a supercharger,installation,tuning,new exhaust and
all the aggravation that is going to go with all
that is gonna cost you way more than the
$10k step to a Duramax...
What are you going to do with a 2500 or 3500 truck? Tow/ haul real large loads? 5th wheel camper? Have you test drove any 1500 pickups? Sounds like you will drop a lot of money just to say you "x amount" of horsepower. A salesman will tell and sell you anything...
12-27-2015, 03:49 PM
LSX 376 swap into a brand new 2500 truck 
