I dont know alot about these LS engines.But,A guy is suppose to have a LS4 engine.Its a 5.3 2005 engine.Its suppose to come out of some kind of high dollar Grand prix.It also looks like it was in a front wheel drive car.Question can this be what it suppose to be.A 5.3 LS4??Some body help me out.Im going look at it and see if I want to buy it.And I have no idea if its a LS4 engine or not.
Don't know if the ls4 can go from front wheel drive mounting to rear wheel drive mounting. But here are some of the obstetricals you will face.
It needs to come with computer, wiring harness and drive by wire throttle system. You will have to source an oil pan made for rear wheel drive car. I don't know if ls4 can use a ls1 pan or not.
You might have to ditch the accessory mounting system because of interference. In that case, you would probably have to fabricate what you need.
I assume that ls1 4l60e or t-56 will work with ls4, but I'm not positive.
Next hurdle will be the motor mounts. Transverse engine has completely different motor mounts than rear drive. And since engine was produced for front drive only, this will probably involve custom fabrication again.
Now the question is, are you able to undertake such a job. Do you have the drive needed to take job from start to finish. Or do you have a bunch of money to pay a professional to do the job.
The W-body LS cars had those sideways LS motors. The biggest differences are the crank is a bit shorter (to fit the engine bay) and, more importantly, they use the FWD V6 bellhousing bolt pattern, which is not on 4L60 transmissions. You might be able to get a bellhousing custom-made (especially if you want to do a T-56 swap as well).
Like said before get one out of a silverado from a junkyard. If it was me id skip the 5.3 and yank a 6.0 ot of a silverado from a junkyard. My buddy picked up a 5.3 for like 500 bucks
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
LS1LT1 Forum
549.5K posts
33.7K members
Since 2004
A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts. Come join the discussion about performance, specs, builds, conversions, swaps, modifications, troubleshooting, maintenance, and more!