Conversions & Swaps LSX Engines in Non-LSX Vehicles
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My build PICS, 1990 300zx LS1/T56

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Old 12-28-2011, 11:01 AM
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Default My build PICS, 1990 300zx LS1/T56

So figured id finally make my build thread. Let me start by stating that LS1 Excitement in Durham NC is doing the conversion and Paul Falcon (Owner) is simply the best. His shop specializes in LS1 swaps/conversions. Before I got into this project everyone under the sun in the 300z community said fitting the LS1 WITH a T56 could NOT be done without gutting the interior and cutting the firewall back. Paul made that happen. Most all the guys attempting it complicated the entire swap with other issues and cutting the firewall was their best solution. To me that seemed crazy. And if anyone could figure out a way to do it, LS1 Excitement could. Ive known Paul for 15 years and hes a great guy and stand up business person. So the project started. Fast forward, He did not have to cut the firewall but he did have to cut the K-member and lower it 1 inch and reweld with angle iron. Bc the T56 bellhousing is so big, the motor has to sit forward pretty far and for the TB to clear the hood, it had to be done. We still had to notch the brace under the hood but no biggie. Also, we removed the hood latch and will run the air intake straight over the radiator bc there was simply no room to do a 90* elbow. We are using AeroCatch hood flush mount hood pins. Second, the paint shop that did all my bodywork is Absolute Bodyworks in Raleigh, NC. Owner Robbie is a great guy and did phenominal on my car. Im beyond happy as to how clean smooth and deep the paint is. As I post this, my car is "back" at the paint shop having the engine pay painted bc the mock up, cutting, grinding and welding is all done. After this, the car goes back to LS1 Excitement for Paul to start bolting everything in place. Still need custom exhaust, drive shaft, but for the most part, its almost done. Enjoy the pics!!

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Old 12-28-2011, 11:04 AM
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My car will still have heat (and AC down the road) bc we didnt cut the firewall. LS1 Excitement will put 90* elbows on the heat tubes.
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Old 12-28-2011, 11:06 AM
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Old 12-28-2011, 11:10 AM
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We left the front end off before Paul started working on it to keep it from potentially getting scuffs or anything with all the welding and cutting.
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Old 12-28-2011, 11:47 AM
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love it! ill keep an eye on this.
Old 12-28-2011, 12:33 PM
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Very cool. I was thinking a 300z or a 94ish RX7 would be a cool swap if you could find a decent body for a reasonable price. But I still have to finish my Wrx ls swap first, lol.
Old 12-28-2011, 01:44 PM
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Looks great, can't wait to see the finished result.
Old 12-29-2011, 12:00 PM
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FD RX7s are hard to find just a shell for. 300s are easy to find shells. But then RX7s are easier to do the swap into but more expensice. 300s are cheaper but harder to do the swap. So really its all about what you wanna spend or the time you have.
Old 01-31-2012, 06:53 AM
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Anymore progress?
Old 02-18-2012, 07:55 PM
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Not too shabby man. I put a LQ4 mated to a stock Z32 transmission in my 2+2 and its a blast!

Looking forward to updates on this one. It's cool to see how the shop you went to is dealing with the stuff. Have you decided on what accessory drive setup you are going with?

Here's a link to my build if it helps with anything:

http://www.tennspeed.net/forums/showthread.php?t=16532
Old 02-19-2012, 10:43 AM
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Sweet buuild. I always thought this would be a awsome swap canidate. I've always liked the bodystyle. Subcribed
Old 02-20-2012, 08:43 AM
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Some updates, picked up the car from paint for the last time. Had the front end put back on now that all mock up was done, had the engine bay painted and the LS1/T56 goes in for the final time today.
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Some notches on the underside of the hood we had to make to clear the TB.
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Old 02-22-2012, 11:31 AM
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for having both a 300zx and a ls1maro, i do have to say you got the best of both worlds!
Old 02-27-2012, 08:49 AM
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Few updated pics. LS1/T56 are in!
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Old 02-27-2012, 10:08 AM
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Awesome, I always liked the 300ZXs.
Old 02-27-2012, 10:27 AM
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sweet as hell
Old 03-04-2012, 06:17 AM
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Random Q. How much did that cost. I'm looking into some conversions myself.


The ride is sick man.
Old 03-22-2012, 09:47 AM
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Question.....what oil pan did you end up going with?
Old 03-22-2012, 09:51 AM
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What model and size XXR wheels are those?
Old 03-22-2012, 10:11 AM
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Oil pan is the GM "Muscle car LSx Hot Rod" pan. Thats actually what its called.

I think the XXR are 521s. 18x8 in front and 18x10 in rear.


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