Oochi's SC300 LSX Build
So I pulled the engine back out. And I thought - "I might as well paint the engine bay while I'm at it." So I prepped and painted it a dark silver color which turned out pretty cool.
Cleaned my steering rack and subframe. Also notched more out of the rear part of the front subframe to make it even on both sides for the oil pan and painted it. Along with front lower arms and calipers. Then installed new prothane arm bushings and Battleversion endlinks.
Then my Fortune Auto Coilovers came in on April fools day! These look so good.
Grabbed some LS7 lifters and LS2 lifter trays
And hauled my car down to IA Atlanta with my buddy and his 1J SC and drifted for 2 days straight. It was an awesome time.
Last edited by Oochi; Jul 6, 2017 at 03:26 PM. Reason: Screw Photobucket
So it's literally been over a year since I have updated this but since photobucket screwed everyone over, I couldn't leave ya'll hanging since I needed to fix my picture links anyway.
So the weakest link of the LS1 block is the rod bolts. And because of that, I decided to throw some ARP rod bolts into the motor. Which means the pistons have to come out...which means engine rebuild. So i got it torque-plate honed and hot tanked, micro polished the crank, with new cam bearings, rod bearings, main bearings, and rings.
And while I waited on that, i got the lines and fittings to delete the ABS and convert all the hard lines into -3an lines.
Cleaned up the oil pan and installed the Improved Racing baffle.
Got the dash out and pulled the massive HVAC unit. Which is bittersweet because i would have loved to have heat but at the same time it takes up way too much space and weighs a ton.
I got the crank installed, the pistons and rods installed, and the valley cover. PLUS picked up a new BTR Stage 4 cam.
So installing the cam I noticed something off...it was SUPER hard to get it installed and SUPER hard to turn by hand. So I pulled it back out and noticed the brand new cam bearings had weird wear spots on them.
So after getting frustrated with that, I had to take EVERYTHING back apart to a bare block to return to the machine shop to get the correct bearings put back in.
Got my knuckles cut for the mad angle and painted them poopy purple
And last thing before getting the engine back was installing the T56 -3an adapter and clutch line
A buddy gave me a used ls6 clutch and flywheel but I decided to ditch the clutch and picked up a new KYclutch kit and mounted the trans on the motor. I swear I fitted and pulled the motor by myself 5 times, smashing the trans tunnel and making it fit.
Next up was fitting the clutch pedal and clutch slave. I mounted the pedal and had to weld a nut in the tire well since this car was an auto before.
Another challenge was adapting the Wilwood Clutch Master to the car since the stock master is mounted in a wonky position. I ended making an adapter plate out of some 1/4" aluminum.
Since I'm using a factory fbody driveshaft, I needed to adapt it to the drifmotion adapter. I did so by using an adapter u-joint to a 1350.
Now for the trans mount, my kit did not come with one. I bought a welder so I might as well use it, right? I got some scrap steel from a local dealer and made my own bracket, saving a handful of cash.
For the fuel setup, I pulled the tank and swapped the return and vent bungs on the tank so that the return and feed were the same in order to use -6an line throughout. I mounted the corvette fuel filter/regulator under the car and ran the lines as shown.
Celebrating Lexus & Toyota from Around the Globe
I also needed to create a panel for the switches and fusebox. Ended up taking an old Dell computer case cover and cut it up to fit temporarily.
Picked up a Sparco seat
Another huge task was the wiring harnesses. I ended up rewiring the engine bay body harness and relocated the fusebox under the passenger side dash. That was a huge pain. The next huge pain was the engine harness. www.lt1swap.com is the lord and savior for this task.
I took it to my buddy's shop where he banged out the rest of the headers and intake pipe and we were able to fire it up for the first time. I was super pumped!
Idle clip, open headers
https://photos.app.goo.gl/GJmVRgXv1DR3NN8a2
Next up was alignment and the scariest part of any build...the dyno tune. Peep the video. It made 380whp/340tq on a Dyno Dynamics dyno.
Oh, and finished the exhaust setup. Dual 3" with x-pipe back to 3.5" Vibrant resonators and 4" tips.
Last edited by Oochi; Jul 17, 2017 at 07:17 AM.


