Lq4 And T56 In A Fox Body Swap
#1
Staging Lane
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Lq4 And T56 In A Fox Body Swap
Just thought I would share some pictures with everyone of a swap I am doing. Hopefully this will help out some of the other people thinking and planning the same type of swap. We are using a 1991 GT 5.0L/5spd. car with just over 100k on the clock. The engine is a stock 2005 LQ4 short block with L92 heads and L76 intake. We will be using an AJE K-member and Kook's stainless swap headers. The T56 6 speed will be mated to the 6.0l using Mcleod's modular bellhousing and we will retain factory Fbody hydraulics. We are planning on taking this on Power Tour 2008 if everything goes well, so anyone who goes, feel free to hunt us down and look it over.
THE VICTIM: 1991 Mustang GT 5.0L 5spd. used to be red, now its "bass tracker black"
SHORT BLOCK DONOR: 68K MILE 2005 LQ4 OUT OF 2005 SILVERADO 2500HD
L92 HEADS: GM Factory components. D-shaped exhaust ports, new rectangular design intake port, 70cc combustion chamber, 2.160"/1.590" valves
THE VICTIM: 1991 Mustang GT 5.0L 5spd. used to be red, now its "bass tracker black"
SHORT BLOCK DONOR: 68K MILE 2005 LQ4 OUT OF 2005 SILVERADO 2500HD
L92 HEADS: GM Factory components. D-shaped exhaust ports, new rectangular design intake port, 70cc combustion chamber, 2.160"/1.590" valves
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Staging Lane
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Here are some of the parts I am using.
BMR tubular Kmember
Kook's stainless Fox body swap headers
Mcleod modular bellhousing
More of the L92 heads
The Kooks headers are some of the nicest headers I have ever worked with. They are definately worth every penny spent and every day that we waited for them. We had to do some small modifications to the K-member. Once we installed the mock engine and transmission, we noticed one of the header tubes was touching the control arm mount area on the rear of the passenger side control arm.
Modification
I definately recommed that anyone planning on doing this swap get a junk or bare LS block and mock up all of their assembly before dropping in the finished engine. It makes it really easy (especially if you use an aluminum block) to pull the engine out for modifications to the car.
Fitting/mockup
BMR tubular Kmember
Kook's stainless Fox body swap headers
Mcleod modular bellhousing
More of the L92 heads
The Kooks headers are some of the nicest headers I have ever worked with. They are definately worth every penny spent and every day that we waited for them. We had to do some small modifications to the K-member. Once we installed the mock engine and transmission, we noticed one of the header tubes was touching the control arm mount area on the rear of the passenger side control arm.
Modification
I definately recommed that anyone planning on doing this swap get a junk or bare LS block and mock up all of their assembly before dropping in the finished engine. It makes it really easy (especially if you use an aluminum block) to pull the engine out for modifications to the car.
Fitting/mockup
#3
TECH Apprentice
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So they do make those headers in stainless... I called and sent several e-mails to them last year when they first came out with the headers and I kept getting blown off so I decided against using them. They look good though.
#4
Thats a cool project!
I have a 1990 Mustang LX, I was thinking about the same kind of setup.
How does the shifter line up, did you have to modify the tunnel?
Heres my project...
http://www.ls1truck.com/forums/lsx-t...-progress.html
I have a 1990 Mustang LX, I was thinking about the same kind of setup.
How does the shifter line up, did you have to modify the tunnel?
Heres my project...
http://www.ls1truck.com/forums/lsx-t...-progress.html
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Staging Lane
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So they do make those headers in stainless... I called and sent several e-mails to them last year when they first came out with the headers and I kept getting blown off so I decided against using them.
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Staging Lane
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How does the shifter line up, did you have to modify the tunnel?
BTW: Your truck project looks fun!
#7
Staging Lane
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Pedal assembly and transmission crossmember
Here's the modifications to the factory 5 speed pedals required when using stock Fbody hydraulics.
Stock pedal assembly
Crossmember modification
I had to move the crossmember mounts back about 4" towards the rear. The brackets are spotwelded to the floor from the factory. A couple of hours of spot weld cutting and we were ready for fitment.
Shifter hole alignment
Stock pedal assembly
Crossmember modification
I had to move the crossmember mounts back about 4" towards the rear. The brackets are spotwelded to the floor from the factory. A couple of hours of spot weld cutting and we were ready for fitment.
Shifter hole alignment
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#11
Staging Lane
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Can you explain more about the pedal modifications you did. Im not following why this is needed.
thanks
thanks
#12
Staging Lane
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Here's the T-56 we will be using for this build. Nothing special, just a stock '98-'02 Fbody unit.
We got a decent amount of work done on Friday and Saturday. It is comming along nicely and all of the work mocking up the drive train is really paying off-everything goes together so much quicker when you already know it's gonna fit!
Engine installed
Had to modify the back of the oil pan for the Mcleod block plate to sit flush.
Before
After
Block plate and flywheel installed
We had to make a 3/16" shim for behind the slave cylinder assembly out of plate aluminum to compensate for the 3/16" the block plate takes up.
Here's a little issue Mcleod didn't think of. The bleeder screw for the slave cylinder contacts the bellhousing before the transmission is brought up against the bellhousing.
So, it was time for some more modifying. We cut a 1/2" section out to allow plenty of room for tools and accessing the bleeder.
Transmission, clutch, pressure plate and bellhousing installed
Time to layout the wiring! I am pretty sure this is the part where most projects like these get clucked off. I hope someone knows where all this wiring goes! Just kidding.
We got a decent amount of work done on Friday and Saturday. It is comming along nicely and all of the work mocking up the drive train is really paying off-everything goes together so much quicker when you already know it's gonna fit!
Engine installed
Had to modify the back of the oil pan for the Mcleod block plate to sit flush.
Before
After
Block plate and flywheel installed
We had to make a 3/16" shim for behind the slave cylinder assembly out of plate aluminum to compensate for the 3/16" the block plate takes up.
Here's a little issue Mcleod didn't think of. The bleeder screw for the slave cylinder contacts the bellhousing before the transmission is brought up against the bellhousing.
So, it was time for some more modifying. We cut a 1/2" section out to allow plenty of room for tools and accessing the bleeder.
Transmission, clutch, pressure plate and bellhousing installed
Time to layout the wiring! I am pretty sure this is the part where most projects like these get clucked off. I hope someone knows where all this wiring goes! Just kidding.
#15
Staging Lane
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What oil pan you using? You may have posted it but I may have missed it. How about ground clearance?
Here's a closer picture of the Fbody pan and K-member
Our original mock-up assembly had the factory 6.0L LQ4 truck pan on it. It is pretty obvious from the pictures below that it was not going to be something we would want to drive on the street with this pan!
#16
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Is that tranny tailshaft a little off centerline or is it just because the angle the picture was taken at?
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Nice write up guys. It really helps me get the visual for my plan of attack. I dont want to pay kooks for their gold plated headers though. Are there any other options using mustang 351 swap headers...?