www.impalassforum.com
Thanks for the LS3 intake recommendation. I forgot about the port design on the heads. I suppose that depending on the donor model, I could possibly use the truck intake if it’s not too tall. I heard something about maybe the Trailblazer SS intake being a little shorter. I will look into that.You will need an ls3 intake for the rectangle port heads on an l92.
If you use the factory pcm remember to get the maf and gas pedal from the donor.
Thanks, I live close to an area that is chock full of all sorts of automotive shops so that shouldn’t be a problem.If new A/C lines are needed just go to your local big truck repair shop. They should have the tools and parts needed for them.
Do you know if the LS3 intake has an integral fuel regulator, or would I need the separate corvette one?You will need an ls3 intake for the rectangle port heads on an l92.
You can retain the stock lt1 ac compressor by using this bracket which mounts it up top on passenger side ls conversion brackets-LSSimpleHD6 Compressor mount kit 1994 Caprice Roadmaster / 1993-1996 Camaro Firebird V8 fs — LSSimple email [email][email protected][/email] with desired combonationsThe LT1 in my ‘96 is toast. Internal damage and the oil is chock full of metal that looks like I dumped glitter into it. I have been planning for a while to swap in an LS, so now is the time.
I hope you guys can take a quick look at this and let me know if I’m going to run into any issues.
I’m looking to put in a L92/L94/L99 variant.I’ve read the threads regarding swaps and have settled on the following:
I’m in the San Francisco area in California, and would need to keep all smog components functioning. I’m ok with the engine being stock for now. I can always change things out later. Originally I wanted to put in a LSA from a Cadillac CTS-V, but those are quite pricey. However I am thinking of swapping out the intake for a LSA supercharger in the future among other things like headers, cam, etc…
- L92/L94/L99 Gen IV engine (from a truck/SUV)
- F-body (LS1 style) oil pan (w/pickup, dipstick and tube)
- Truck/SUV FEAD (I will be using an AC compressor and don’t want to notch the crossmember)
- LS1 or LS6 intake manifold (truck intake is too tall) EDIT: LS3 intake to match the rectangular head ports
- KDS mounts (for stock engine placement)
- F-body exhaust manifolds w/F-body catalytic converters
- 4L60e transmission with flex plate spacer. (I had my stock tranny rebuilt recently by a reputable builder who corrected all the factory weak points, so it is more robust than the stock one, but is not a ‘performance’ build.
- Factory transmission crossmember (KDS mounts apparently allow for this)
- Extended rear control arms (From what I understand, the tranny is shifted back slightly from stock, so if I want to use the stock driveshaft, I will need to add the extended rear control arms)
- PCM from the donor truck
- Harness from the donor truck
- Drive by wire throttle (I would prefer a physical cable setup for simplicity, but apparently these were only available up to ‘03, which would force me to get a different harness than what came from the donor truck, and would require modifying) EDIT: pedal assembly, harness and MAF should come from donor truck
- Factory fuel lines apparently do not need to be modified and will plug into the LS1 intake fuel rail (assuming it has a built in regulator)
- Factory radiator will be ok capacity wise, but I’m not sure if the inlet and outlet are in the optimal locations
- Intake plumbing and filter box from the donor truck?
- Emissions equipment from the donor truck
FYI, My ride is mostly street, however I auto cross it occasionally.
The big item I’m not sure about is the PCM and harness. I am reading up all I can in the threads about this subject and am slowly getting accustomed to what is involved. I understand that both the Impala and new wire harnesses would be needed to be married together. I want all the smog components to work when I’m done.
Any other roadblocks I am missing?
Those are 2 separate brackets, the ac bracket actually works in conjunction with the stock ls truck fead, and the ac bracket doesn’t have the logo on it.I will put this under " to each their own "
That AC ounting sure takes up a lot of real estate
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Not on my car thanks.
The other thing that sticks in my craw is paying large money for something and they make you advertise for them with giant etched or or milled name or logo
Need the vette one
Got it. I did a YouTube search based on what you said and there are a couple videos where this guy went through the process and it was very easy.Returnless style, so the larger feed is the only one used up front.
The larger feed line will plug into the LS3 fuel rail but is a tad long if I recall.
Think I shortened mine a bit.
You can get replacable stainless ends but one thing is these lines harden with age.
My fronts were less than 10 years old at the time.
Even if keeping the nylon which I did , now might be a good time to run new..
Also a good time to loose the coupling hiding in the left frame rail behind the front wheel
If you do the return type corvette you can put it in the stock location and remove the return forward of that point.
