Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Old Aug 4, 2014 | 12:16 PM
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Default D1SC Procharged LS2 RX8 Ronin 8.8 Rear End

Hey guys. I'm building an lsx swap RX8.

I used to build sportbikes for fun, as I'm only 20 and funds have never been sufficient for a car build.

Well, I decided to change that.

I picked up an 04 RX8 with blown Apex Seals in PA for 1500$



Brought her back to the mitten and stripped her down.








Later that week I found an 09 TBSS LS2 for 1600$ that looks brand new.



Found a T56 from an 01 Camaro SS with 70k for 800$



I purchased the LSX conversion kit from Stephen Villavaso (3500$)

LS1 water pump (140$)
LS1 Tensioner Pulley
LS1 Alternator (160$)
LS1 Balancer (65$)
LS2 Timing cover (85$)
LS1 Alt Bracket (75$)

T56 Bellhousing
T56 Rebuild kit
Trans lube (650$)

LS6 intake/injectors/fuel rail & 85mm TB purchased (570$)

Oil pan kit (85$)
Pro 5.0 Short Shifter (140$)

Will post pictures later. At SOS now.

I need help on my wire harness options. I can swap my DBC harness and use DBW since I have the 58x reluctor wheel or get the lingenfelter converter box and keep DBC. I'm pinching pennies now.. So I'm all ears for suggestions.

Last edited by Coda634; Apr 4, 2016 at 03:07 PM.
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Old Aug 5, 2014 | 10:00 AM
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Purchased an e40 ECM and harness with DBW TB and Pedal along with a Lingenfelter converter box.

Now I just need some gaskets, a TOB Tube for the trans, a clutch, and a custom exhaust.

Build progress will start more this week.

Thanks to everyone on the forums offering the knowledge and awesome used parts to help complete this build!
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Old Aug 6, 2014 | 07:32 PM
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Great collection of parts man. Look forward to seeing some progress.
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Old Aug 7, 2014 | 01:41 PM
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Thanks man, so far my tab looks like this..

RX8 - 1500$ 2500$ spent on trip
LS2 - 1600$ 1750$ spent on trip
Deluxe Kit - 3500$
LS6 intake/85mm TB/Rail/inj - 570$
E40 Harness - 225$
Lingenfelter TRG002 - 150$
Alternator - 140$
Water pump - 125$
Tensioner pulley - 15$
Belt - 15$
Alternator bracket - 80$
Oil pan - 160$
Oil pan kit - 85$
T56 - 800$ 1000$ spent on trip
T56 5.0 Shifter - 140$
T56 Rebuild - 400$
T56 Bellhousing - 250$
T56 Mainshaft - 250$
LS7 Clutch & Flywheel 445$
OEM Slave Cylinder - 50$
Fender Liners - 200$
F. Bumper impact absorber - 60$
R. bumper reinforcement - 50$
Mazda Speed Body Kit - 550$
Gaskets - 95$


11,455$ on car build
12,805$ + traveling costs


Just waiting on parts to arrive now
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Old Aug 11, 2014 | 09:02 AM
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Poke around for pics of Rapper Dan's Sikky RX8 if you need some ideas or inspiration
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Old Aug 11, 2014 | 11:28 AM
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Dang, man, you are finding some deals.

OK, just saw all the rebuild prices on the T56. That cuts into it a bit. Still, good hunting.
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Old Aug 11, 2014 | 12:03 PM
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Originally Posted by Coda634
I purchased the LSX conversion kit from Stephen Villavaso (3500$)


Maybe reading comprehension escapes me...but what parts does his kit contain exactly...???
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Old Aug 12, 2014 | 09:03 AM
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Originally Posted by BoostinIx
Poke around for pics of Rapper Dan's Sikky RX8 if you need some ideas or inspiration
That thing is sick!


Originally Posted by Pop N Wood
Dang, man, you are finding some deals.

OK, just saw all the rebuild prices on the T56. That cuts into it a bit. Still, good hunting.
Yeah, but it was the best deal I could find. Plus once its rebuilt it will be a fresh trans.

I've been nickle and diming every bit where I could.

Originally Posted by CattleAc
Maybe reading comprehension escapes me...but what parts does his kit contain exactly...???
Nearly every bit to make the swap very straight forward.

DELUXE KIT
Includes everything needed for the swap to save both time & money

Power-Train
• Engine Stands & LSX Adaptors & Rubber Engine Mounts
• Transmission Crossmember With Torque Arm
• Polyurethane Transmission Mount
• Custom Steel DriveShaft
• Aluminum CNC Machined Trigger Wheel
(Engine speed for instrument cluster)

Exhaust
• Exhaust Manifolds

Acceleration
• Throttle Cable
(I used a 2 Gen Rx7 throttle pedal. Will also
come with install hardware for the Rx7 pedal. Just
let me know your plans for this part)

Fuel Delivery

• In-Tank High Volume Fuel Pump
• Filter/regulator• Custom quick Disconnect Fuel lines
(This is for a returnless fuel rail. Contact me if otherwise)

Hydraulics
• Clutch Line
(For stock F-body Slave Cylinder)
• 7/8 Bore Clutch Master Cylinder
(The clutch is about the same as the stock feel of the Rx8)

Suspension
• Rack and Pinion Relocation Bracket
• Sway Bar Spacers
• Strut Bar Spacers
• Bump Steer Kit
(To correct the geometry of lowering
the rack for oil pan clearance)

Induction
• Crome Air Intake With Washable AirFilter

Battery
• Battery Relocation Cables

MISC
• Shifter Cover
• Shifter Relocation

Stephen himself answers questions regularly for me and that alone has been worth purchasing one of his kits. Very nice guy.
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Old Aug 13, 2014 | 07:29 PM
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Updated pricing

RX8 - 1500$ 2500$ spent on trip
LS2 - 1600$ 1750$ spent on trip
Deluxe Kit - 3500$
LS6 intake/85mm TB/Rail/inj - 570$
LS1/411PCM&Harness - 350$
Lingenfelter TRG002 - 150$
Alternator - 140$
Water pump - 125$
Tensioner pulley - 15$
Belt - 15$
Alternator bracket - 80$
Oil pan - 160$
Oil pan kit - 85$
T56 - 800$ 1000$ spent on trip
T56 5.0 Shifter - 140$
T56 Rebuild - 400$
T56 Bearing Shims Snaprings -190$
T56 Bellhousing - 250$
T56 Mainshaft - 250$
LS7 Clutch & Flywheel 445$
OEM Slave Cylinder - 50$
Fender Liners - 200$
F. Bumper impact absorber - 60$
R. bumper reinforcement - 50$
Mazda Speed Body Kit - 550$
Gaskets - 95$
Bolts - 50$


11,720$ on car build
13,270$ + traveling costs

Sold old pcm & harness since pedal wouldn't fit for a 411pcn & harness (350$)

Sold harness for 225

(+125 overall)

Bolts + 50$

Needed bearings, races & snap rings for the t56 (+190$)

Oil pan came in today, cleaned it up.

Doing body work while waiting on engine parts. Now doing trans rebuild also.

Conversion & body kit should arrive over the weekend progress pics will reoccur soon.
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Old Aug 21, 2014 | 03:41 PM
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Motors finally assembled







Working on the trans rebuild
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Old Aug 21, 2014 | 04:30 PM
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I hope you've measured the mainshaft for the 5-6 cluster gear fitment and verified the 3-4 fork isn't wallowed at the shift rail or just picked up a new iron fork.

Cool build.
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Old Aug 25, 2014 | 05:58 PM
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Originally Posted by jmd
I hope you've measured the mainshaft for the 5-6 cluster gear fitment and verified the 3-4 fork isn't wallowed at the shift rail or just picked up a new iron fork.

Cool build.
Everythings measured and replaced. All good to go finally complete.


Just finished the T56





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Old Aug 26, 2014 | 03:09 PM
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Just ordered Hinson/Stainlessworks Long Tube Headers (1 7/8ths" inlets with 3" outlets)
Hinson/Stainlessworks Y-Pipe
(3" outlet)

For 1150$ shipped.

New the headers are 935 + shipping

New the Y-pipe is 435 + shipping.

These connect into the stock or aftermarket Mazda muffler.

I will be using a 3.5" aftermarket muffler.
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Old Oct 25, 2014 | 12:41 AM
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Holy **** do you just hate money? Your budget has you in C6 territory. I'm confused are the travel and on car costs separate? I'm doing an RX 8 swap and my realistic budget is a fraction of that. A very small fraction
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Old Dec 17, 2014 | 12:49 AM
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Bump for update
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Old Jan 15, 2015 | 04:36 PM
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The travel cost is including what was spent on the car. Uhaul is expensive.

No updates yet, its below freezing in Michigan and I don't have a heated garage. Mom's fiance bailed and took all the tools, will be having it sent to a friends shop and finishing the work there.

I wish I could afford a C6, but I'm under 15k total invested. Can't find a C6 under 30k.
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Old Jan 15, 2015 | 05:34 PM
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**** the haters bro, nice project.
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Old Jan 16, 2015 | 09:01 PM
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I'm an RX fan but good lord the 8 is slower than dirt and responds very little to bolt-ons. Awesome project but that mount/conversion kit is crazy expensive. Looking forward to seeing the end product.
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Old Jan 19, 2015 | 10:25 PM
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I'm swapping an RX8 as well. I'm rounding third base. Just exhaust, finish the fuel system and tune it. And yes LS2 C6s can be had under 20k
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Old Sep 17, 2015 | 03:10 PM
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Forgot I had a thread on here, been posting progress on no rotor.


Bent lip around engine bay for clearance

Dropped steering rack and sway bar so its ready for relocation once lip bending is finished

Stainless works long tubes and Y pipe


Test fit




Test fit is a success, & headers only fit if we took off the K member then reinstalled it.
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