When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Anyone have any idea if an LS3 swap will be possible on the new Lacrosse? I love the car, but it is very underpowered for what I am used to. I am reluctant to supercharge it or add a turbo until I know a lot more about the engine. So, the short answer would be to do a swap. Otherwise, I'll probably just go with the new Lexus IS-F.
Honestly, I'd get the Lexus; you'll have many less issues in your brand new car with that setup, and have something better sorted, vs. a swapped 2010 Buick.
Don't buy a Jap car I am sure it can be done. You must have some resources if you are considering that swap. Maybe you can buy a total and start from there that way you don't have the super high inital buy in.
i assume yours is a 3.6 or 3.8 liter? well considering you can get a ls6 headed 5.3 (ls4) in the lacrosse from the factory then why didnt you just do that. I dont think an actual ls3 will bolt right in due to the front drive 5.3 block being different but a cammed LS4 would make a ton of power. So sell the v6 one and get one with a LS4 already. just my .02
It doesn't come with a V8 anymore. That is the whole point of this discussion. I'd lean towards AWD so, I'd be stuck with a 3.0L 255HP engine. Just not enough to be an option in my book. I'd have to believe the LS engine would fit in that engine bay, but I may be wrong. Like I said, Ill probably end up with the IS-F and then see where things go. That way I can drop a twin turbo in it after a couple of years and it will feel like a totally new car.
Originally Posted by 1quickirocz
i assume yours is a 3.6 or 3.8 liter? well considering you can get a ls6 headed 5.3 (ls4) in the lacrosse from the factory then why didnt you just do that. I dont think an actual ls3 will bolt right in due to the front drive 5.3 block being different but a cammed LS4 would make a ton of power. So sell the v6 one and get one with a LS4 already. just my .02
Anyone have any idea if an LS3 swap will be possible on the new Lacrosse? I love the car, but it is very underpowered for what I am used to. I am reluctant to supercharge it or add a turbo until I know a lot more about the engine. So, the short answer would be to do a swap. Otherwise, I'll probably just go with the new Lexus IS-F.
I came across this with the same idea! Take a beautiful lacrosse and add the power the beautiful car deserves! Someone out there should make it happen! Obviously it will take a bit of fab work and some how to, but it's doable!
LS3 will not bolt up to transaxle at all
it has the V6 pattern
The LS4 has the V6 tranaxle bolt pattern.
LS4 also has a shorter crank by 10mm to fit in the FWD cars
LS3 will not bolt up to transaxle at all
it has the V6 pattern
The LS4 has the V6 tranaxle bolt pattern.
LS4 also has a shorter crank by 10mm to fit in the FWD cars
LOL, I knew that and totally forgot about that little technicality!! DOH!!!
Does any of this really matter in this 10 year old pipe dream thread???? The car in question was brand new when this thread was made, so wasn't a huge chance of any of it ever happening ...
LS3 will not bolt up to transaxle at all
it has the V6 pattern
The LS4 has the V6 tranaxle bolt pattern.
LS4 also has a shorter crank by 10mm to fit in the FWD cars
Do you think I could swap the 5.3 Ls into my Lucerne with the northstar
Anything possible if you put your mind to it and throw enough money at it here's my 2012 LS swapped Buick LaCrosse twin turbo with an Ford 8.8 rear diff 31 spline 373 ring and pinion
That's quite a project. Got a better overhead shot to show how the engine bay is packaged? Where are the turbos going to sit? What is the drivetrain setup?