Conversions & Swaps LSX Engines in Non-LSX Vehicles
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1992 Nissan 240sx coupe

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Old 10-02-2014, 10:25 PM
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Default 1992 Nissan 240sx coupe

I know right, another rice rocket.

Power/current specs:
HP 384
TQ 370
Dyno Dynamics 450 DS


Engine:
- 5.7L LS1
- Fast 102mm intake
- Fast 102mm big mouth throttle body
- Holley EFI LS fuel rails
- 243 z06 heads with sodium filled valves
- 650" dual valve spring kit
- LS7 lifters
- Comp Cams trunnion upgrade kit
- Comp Cams 7.3" 5/16 push rods
- Comp Cams XFI XR277HR cam
- Forged Mahle pistons and ring set
- stock rods
- Clevite H series race bearings
- Melling oil pump


Engine Dress up:
Holley LS valve covers
Chasebays - relocation brake lines
Plasti dipped intake
MSD wires

Suspension and handling:
s15 5 lug conversion
Stance GR+Pro LS swapped specific
Sikky front swaybar 32mm tubular
Tanabe rear swaybar 27.5mm

Wheels and tires:
Work VS-KF burning black
front: 18x9.5 +7mm (107mm Lip) 225/45
(needed 4mm spacers to clear the z32 caliper)
rear: 18x11 +20mm (120mm Lip) 265/35
(needed to bash rear inner tub, 8mm spacer to clear the inner wall)
Braking System:
front: s15 4 pistons
rear: stock

Exterior
s13 silvia front conversion
s13 silvia aero front bumper
s13 Vanquish silvia aero front lip
s13 chuki 180sx side skirts
s13 Bomex Bonneville rear lip
s13 Dmax roof spoiler
s13 Circuit Sports taillights




Love these s15 seats






Rusty frame rails repair.



New metal!





Por15


On some ugly *** MRR 19x8 and 19x9


Temporary fix... Varrstoens. 18x9.5 18x10.5



Onto a face lift. Good bye number5 and hello silvia




Ugh.. don't like the fitment of these Origin fenders..


added Bomex Bonneville rear.... It's RARE!



I got a free jdm aero bumper for free but it was cracked and warped but I got it fixed! Like brand new again!



Back with the oem metal fenders


Very last order of these VSKF from Ravspec


So lucky to buy these brand new





18x11 +20(12)265/35 needed inner tub bashing and a 8mm spacer



18x9.5 +7 225/40 (needed a 4mm spacers to clear the z32 caliper)
18x11 +20(12) 265/35



Found a aero lip for sale.. not sure the brand.. Vanquish? Looks like the old school Chargespeed aero lip rep.



It's getting hard to find oem parts. Found this from a zilvia member in Thailand.







An impulse buy... should have gone with a crate engine instead...

Last edited by Boost Infested; 10-04-2014 at 02:22 AM.
Old 10-02-2014, 11:07 PM
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She's going under the knife.




What a mess..






Can't decide on cutting the factory tubs out or not. F@ck it go big.. more work.


Old 10-03-2014, 12:15 PM
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I'm really digging the OEM+ theme with the Silvia front end.

Street/strip car? Or something else planned? looks like a great blank canvas.
Old 10-04-2014, 02:20 AM
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Originally Posted by LQ4-E39
I'm really digging the OEM+ theme with the Silvia front end.

Street/strip car? Or something else planned? looks like a great blank canvas.
It's a street car.

Don't judge too hard first time doing this lol. I don't have a plasma cutter everything was cut by a die grinder. This is also my first time doing this sort of work.




















Ok, I am so sick of grinding. I cheated with seal sealer over welded area.











BNR34 white QM1






Old 10-04-2014, 09:07 AM
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Looks good! Commendable job for the first time. I am about to get at the rusty areas of my 240Z the same way.
Old 10-04-2014, 07:16 PM
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looks good! lovin all the ls swapped 240s in here recently. my buddy has a s13 im trying to convince him to swap an ls/t56 into it, will get it eventually lol
Old 10-05-2014, 11:38 PM
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Mahle forged pistons with Comp cams XFI XR277HR cam 54-418-11


low mileage 243 heads from a LS6(z06) with sodium filled valves. Manley Valve dual spring kit with titanium collars .650" lift max.




a quick test fit..

Old 10-06-2014, 10:55 AM
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Nothing looks better than a freshly painted white engine bay.
Looking forward to seeing this thing get finished. Good work!
Old 10-06-2014, 02:35 PM
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Pretty soon there's going to be more 240's with LSx motors than with the KA it came with, swap looks good
Old 10-10-2014, 12:17 AM
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Sikky LS swap parts bought with Wiring Specialties.
















My stock intake came broken. So I replaced with the FAST 102 intake and throttle body.




ChaseBays z32 brake master hide away brake lines.


Tremec Magnum 6spd. The length from the bell housing to the shifter is 26.6" vs oem t56 is 29.5" The difference of 2.9". The oem t56 is already about 1.5" away from the center of the s13 shifter hole. To fix this you must use Sikky's 350z LS swap magnum shifter. Version 2 is ready to roll (June 22nd). You also have to get a Spicer slip yoke(1330 Series 31 spline) and YOU HAVE TO SHORTEN THE SIKKY DRIVE SHAFT.




A quick test fit with just the bell housing bolted up to the long block.



Monster Clutch Level 3 700 HP/TQ with light weight billet 18lbs flywheel.

Old 10-10-2014, 09:38 AM
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Dude you could literally eat off of your car and setup. Cant wait to see this done.
Old 10-10-2014, 09:49 AM
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Awesome build! Nice Monster!!!
Old 10-10-2014, 10:14 AM
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Nice build! So the turbos going in the trunk or what?

Old 10-10-2014, 11:20 AM
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Beautiful! Love it all lol.
Old 10-10-2014, 11:23 AM
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Subscribed, this thing looks like a bad bitch!!!
Old 10-10-2014, 06:24 PM
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Originally Posted by SNLPerformance
Awesome build! Nice Monster!!!
I like my monster


Last edited by Boost Infested; 10-10-2014 at 09:57 PM.
Old 10-10-2014, 09:29 PM
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Final assembly

New oem tray, trimmed and installed. Sikky oil pick up and oil pan sealed.






243's from a Z06, Ls7 lifters, trays and 0.650" valve springs. Comp cams trunions upgrade.



Last edited by Boost Infested; 10-10-2014 at 09:36 PM.
Old 10-10-2014, 09:53 PM
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almost there...




Yup the older coil packs are too short.



Finally I got the right coil packs for the Holley LS valve covers.



First world problem.. Engine and trans bolted together and back into the engine bay. 1 7/8 header is just touching my frame rail....







driver side: top view and bottom view


passenger side last runner is touching the frame rail: top view and bottom view
Old 10-11-2014, 03:21 AM
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Hindsight is 20/20 but it's always a good idea to test fit first. I can't tell you how many times I HAVE NOT followed that advice.

Awesome build man. Very nice work for your first time. The wheels, stance, bumpers, everything is ****. I'll be following this one.
Old 10-11-2014, 08:47 AM
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Odd, you sure those are s13 headers and not the s14 headers, the only explanation I can see to the header touching the frame, unless you lowered the subframe

Last edited by Nissan LS240; 10-11-2014 at 08:54 AM.


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