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So I blew up my civic (2007 lx) and I bought a donor car (2006 si) and I'm wandering before I start to get into it all how what should I know and what parts am I gonna need to strip from the donor car

 
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Did you search? Not a common swap but it is doable.

The R18 is a very capable engine and can be modded for some nice power.

Sell the 07 and buy a old hatch or Civic to put the K into, more bang for the buck.

 
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The lx was my first car so it's one of those things like I would pay more than it's worth to fix it just so I could keep my first car

 
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Ah ok I understand that. Well there isn't anyone on this forum currently that has done that swap but if you google R18 to K20 swap lots of stuff comes up. I would start reading through to see what you can find. From my quick and dirty search it looked very custom and expensive but can be done.

Good Luck!!

 
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You have both cars so there should be no major issues.

Wiring harness may cause issues. The best idea would be to us the k series harness, just double check to make sure it will plug into your gauges/and interior. You could also try using the r18 harness, but make sure the ECU pinout is the same.. in order to run the k series ecu.

If the chassis is the same, you should be able to use the k series subframe for the torque mounts, then change the engine mounts if needed. If that doesn't work the use the r18 subframe and buy/fabricate mounts.

 
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Thanks then wiring was really my main concern I just didn't know if I was gonna have to cut on the harnesses

 
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don't quote on me, but there are differences between auto and manual trans. what are the ones you have?

 
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Both manual

 
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Hey guys I’m new to the forum.
PLEASE READ EVERYTHING
Im currently doing the swap right now From a 09 lx to an Si. I brought the whole swap from a donor car. Engine, engine harness, motor mounts the whole 9. I basically left the engine bay empty.
To make story short, this new motor had electric power steering the old one didn’t. So I’m order to keep the electric on I had to swap the whole harness that goes behind the dash as well.
After removing the dash everything plugged in except one connector (it’s a blue one that’s right next to 2 white ones, in the driver side kick panel).
The new harness connector doesn’t match with the original harness in the car.
is started splicing some cables and I got the rpm gauge to finally read. The cluster stopped giving me those weird code, but now I have an immobilized problem. Has anyone had this issue with this connector? Can anyone help me find the wiring diagram for this connector? I just need something.