89 240sx LS1 swap
Thread Starter
Teching In
Joined: Feb 2007
Posts: 6
Likes: 0
From: Missouri
89 240sx LS1 swap I have an 1989 240sx that is in almost flawless condition aside from the blown KA. I already have a 90 with a Sr20det and some mild upgrades, blaw, blaw, blaw. I'm so tired of messin with with 4 bangers. I recently discovered that an LS1 swap is becoming increasingly popular. A chevy small block is a thousand times cooler anyway. I can handle the physical aspects of the swap like the motor and trans mount, driveshaft, radiator, etc. The only problem that I feel I may have is with the dash wiring. Will the 240 tach and speedo work with the LS1? Does anybody know of any bugs that often pop up during this swap? Any links to wiring the whole thing up now that I think of it? Sorry for all the questions, but where can I find a good LS1 for a reasonable price?
TECH Apprentice
Joined: Aug 2006
Posts: 301
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From: Mobile AL.
ls1 wiring is easy. it was finding the wires on the 240 is were i had problems. alot of it i just ran new wire. fuel, ign and starter are the ones i ran new wire on (that i can remeber). these other guys can help with the 240 wire. some f plug they are usein. wish i knew about it.
Originally Posted by Ben Gloe
I have an 1989 240sx that is in almost flawless condition aside from the blown KA. I already have a 90 with a Sr20det and some mild upgrades, blaw, blaw, blaw. I'm so tired of messin with with 4 bangers. I recently discovered that an LS1 swap is becoming increasingly popular. A chevy small block is a thousand times cooler anyway. I can handle the physical aspects of the swap like the motor and trans mount, driveshaft, radiator, etc. The only problem that I feel I may have is with the dash wiring. Will the 240 tach and speedo work with the LS1? Does anybody know of any bugs that often pop up during this swap? Any links to wiring the whole thing up now that I think of it? Sorry for all the questions, but where can I find a good LS1 for a reasonable price?
we are about to pick up a 90 hatchback to start on our 2nd swap to say weve played both ends of the feild with this swap
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Originally Posted by Ben Gloe
Thanks. Anybody got anymore info on the wiring for an S13? 
How cheap are LS1 parts if something breaks?
How cheap are LS1 parts if something breaks? Thread Starter
Teching In
Joined: Feb 2007
Posts: 6
Likes: 0
From: Missouri
Thanks again. This swap is starting to look very doable. It's kinda funny because my buddys 98 Z28 got rear ended and totalled out last weekend. He wants $4500 for engine and tranny and everything to make it run. Sounds kinda steep, but its only got 55K on it. Might be able to talk him down a little. Any advice? 
On The Tree
Joined: Oct 2006
Posts: 123
Likes: 0
ls1 go for good money somtimes, my friend picked up his 02 m6 ss motor with ls6 components stock for 2600 had under 25k on motor. thats is a damn good deal. i had to pay 3k for a 98 m6 package with 45k. I didn't have to but i just really wanted a ls1 lol!! Talk your friend down.. he is a friend right ? i wouldnt pay more then 3k for a 98..
Thread Starter
Teching In
Joined: Feb 2007
Posts: 6
Likes: 0
From: Missouri
haha...you guys are right. I think I got him down to $3800. I know I already asked but where are these majical places that sell such cheap motors? What would be the best way to make NON solid motor mounts to be easier on the block?
hey Ben Gloe, check out www.silviav8forums.com there's some more info there, it's dedicated to 240
s with v8's =) i'm currently doing mine also right now, enjoy!
s with v8's =) i'm currently doing mine also right now, enjoy!
Thread Starter
Teching In
Joined: Feb 2007
Posts: 6
Likes: 0
From: Missouri
Sorry guys but the LS1 240 swap is being put on hold. I just dont have the funds right now. So I guess I m going with a turbo four banger. I just need to finish engineering school. Then I'm going to do a LS1 240 real real big!! 
I just need to finish engineering school. Then I'm going to do a LS1 240 real real big!! 