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LS1 into a Mustang part 3

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LS1 into a Mustang Part 1

LS1 into a Mustang Part 2

LS1 into a Mustang Part 3

LS1 into a Mustang Part 4

    Well it's been a while since I've updated the progress so I'll bring you up to speed with where I'm at in the build.  Since the last entry, I have started the long process of putting the car back together. I have installed the Roll Bar along with some of the interior panels so it is starting to feel like a car again instead of an empty shell. By the way this is our Cloth upholstry we offer for the 87-93 Sport seats

LS1 Fox Body Mustang Project

After we got that installed I took the car over to a buddy's shop to have the Rear Anti-Roll Bar welded in.  It's designed to keep the car level when launching instead of one side "squatting" more than the other.  UPR makes a really nice product and installation wasn't difficult.

LS1 Fox Body Mustang Project

 

LS1 Fox Body Mustang Project

 

LS1 Fox Body Mustang Project

 

While I was there I also had him relocate my Steering Rack.  It wouldn't bolt up because it was hitting the oil pan.  We welded in a piece of 1" square tubing to drop it down which was enough to do the trick. I still have to get a set of  Offset Rack Bushings to get it exactly where I want it.

LS1 Fox Body Mustang Project

Here you can see the HPM Crossmember I used to bolt up the transmission.  It is specifically designed for the Tremec transmissions to bolt in the factory location on the Mustangs.

LS1 Fox Body Mustang Project

While I was there I also installed the HPM Driveshaft Safety Loop as well since the car will see ALOT of Track time.

LS1 Fox Body Mustang Project

Another obstacle I had to overcome was the clutch setup.  If you remember the clutch fork I used was a 94-04 unit so it was longer than the normal Foxbody one, which in turn caused it to hit the floor pan.  I had to clearance the floor pan to clear.  This was done with a Precision instrument that is commonly referred to as a "sledge hammer".  I'll go back in and do body work to it to make it look better and repaint this area.

LS1 Fox Body Mustang Project

 

The second thing to address is the clutch cable mounting location.  I'm going to enlarge an existing hole on the bellhousing to allow the cable end to fit in it and us a factory retaining clip to hold it in place.

LS1 Fox Body Mustang Project

 

That pretty much gets the Underside of the car ready to go. When the car is ready to Drive I will install the Aluminum Driveshaft to finish out the driveline.

With the mechanical aspect of the build coming together I then turned my focus to the appearance.  I started the process of restoring all of the factory trim that I had taken off the car in the beginning. It was all still in pretty good shape so all it needed was a thorough cleaning, scuffing, and a fresh coat of trim paint .  After the paint dried I installed new door weatherstriping and reinstalled the parts.

LS1 Fox Body Mustang Project

LS1 Fox Body Mustang Project

 

Slowly but Surely it's coming along and hopefully in the near future I will have the final chapter in the build along with some video clips of it at the track

 

Published Oct 13 2008, 01:01 PM by SCOTTY2THAG
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Comments

 

Lee said:

It's so close!

October 13, 2008 3:37 PM
 

nate said:

You gotta be precise with that sledge hammer!

Lookin good though!

October 13, 2008 3:55 PM
 

SCOTTY2THAG said:

oh I was....there were others that tried their preciseness as well. :)

October 13, 2008 4:10 PM
 

jjimenez said:

Looks like the project is going together pretty quick.... I guess its all those precision tool you have.

October 14, 2008 9:11 AM
 

Hank said:

Would rather see a Mod Motor in a Corvette

October 14, 2008 3:57 PM
 

colter said:

your gonna BURN for this Scotty!!!  ; )

good to see it coming together

October 15, 2008 8:04 AM
 

SCOTTY2THAG said:

It's nothing I haven't heard before

October 15, 2008 9:35 AM
 

Young_buck said:

Yea mod motor in a vette would be interesting like a 5.4. Sweet build though this is like luke skywalker of the automotive universe, Ford and chevy's baby haha.

October 15, 2008 11:09 AM
 

cobra mark said:

I understand using a Fox body (plenty of them, that means cheap to come by. LIGHT weight, weight...everybody's enemy. and the most important part, they look BETTER than a slomaro ! LOL)  remember, next time you pull up to a stop light. and a 03 or 04 Cobra is next to you he or she might be packing 650-800 RWHP.........be prepared ! Well, good luck to a fellow gear head. Like I always said.......WRENCH- UP...and... DO IT YOURSELF !!

"A mans got to know his limitations"......Dirty Harry

October 19, 2008 7:08 PM
 

cobra mark said:

                                              THE SNAKE IS BACK !!!

I missed the the pics and blog on the LS-1. So, is this motor stock? power adders? got dyno numbers?    As far as dropping a GM in a FORD, this kinda stuff has been going a long time........look how many 350s are in '32 FORDS.

"First it raises to waist height, then you hear the load hiss, by that time it's to late you have just been bit by one of the worlds deadliest snakes........THE COBRA !!"

                                        DARE TO BE DIFFERENT !!

                                      KEEP UP THE GOOD WORK !!

October 23, 2008 7:30 PM
 

SCOTTY2THAG said:

The only performance modifications are a decent size cam, victor junior intake, and long tube headers.  Haven't cranked it up yet but power estimates are going to be about 350hp at the wheels. I do plan on adding a power adder just not sure if it will be a blower or Nitrous. as soon as it's together I'll get it dynoed and will post track results along with video.

October 24, 2008 8:28 AM
 

Allen said:

Why?  Its like a 350 in a T-bucket.  My neighbor has his T_Bucket right.  Flathead Ford V8.  LOL lots of luck!

October 28, 2008 7:34 PM
 

1wickedlq4stang said:

350 rwhp?   scotty2thag thats what they  do with just headers, i have built 2 datsun  ls1 the first was a stock ls1 with headers and no tune it made 348 rwhp. the second was heads and cam and a tune it made  430 rwhp.  my new project is 6.0 ls1 big cam victor jr  efi intake   it should put down 450-475 rwhp  car weighs  2680 (w/o) driver so im not to worried about 3800 lb 700 hp cobra plus theres always the Squeeze.

November 14, 2008 2:47 AM
 

SCOTTY2THAG said:

The reason I had a Lower power number is based on the fact that it's a 5.3 and not the normal 5.7.  I haven't seen aloth of dyno's done on manual 5.3 so I was going off of an estimation from automatic numbers I've seen.  I figured anything more than I was guessing would just be an added bonus.  and yes there are plans to add a power adder to this car.  Just not sure yet if it is in Bottle form or Forced Induction.

November 14, 2008 8:22 AM
 

1wickedlq4stang said:

wanted to know?  did you use the ford tremec or the gm tremec for your swap?

November 15, 2008 2:45 PM
 

cobra mark said:

I say go forced induction. Sounds like the car will be a quick one what ever way you go. good luck and can't wait to see the end results. and BTW, 1wickedlq4stang,  3800 lb that would be a stock rag top Cobra...who the hell races rag tops?  try, twin turbo, 823 rwhp (on the stock lower end!) roll bar REQUIRED,  9" rear w/436 gear, AUTOMATIC tranny. 3,100 lb w/my fat butt in it and a street legal LS1-LS2 KILLER !!

             450-475 RWHP, CAR 2680 LB  PLUS 6.0 MOTOR, PLUS DRIVER

                                                  VS.

                                    823 RWHP, CAR 3100 LB

                                   see you at the drag strip !!

November 15, 2008 11:04 PM
 

SCOTTY2THAG said:

I used the Mustang version of the TKO Lakewood makes a bellhousing to adapt this tranny to a Small Block Chevy.  I'm leaning toward the blower Idea, either way I will have to upgrade the Roll bar to be Legal.

November 17, 2008 8:10 AM
 

1wickedlq4stang said:

cobra mark!  thats sweet you should let everyone no your secret. you where able to add Hundreds of pound to your car via twin turbos a 9" and cage. and drive a car thats not gutted to all hell so it looks like a daily driver SWEET!!!! and we all know for did a great job with the 03-04 short blocks they have all the right stuff. my fox is gutted to all hell and weighs 2650 plus my 6' 5"  320lb ass.  

November 19, 2008 12:17 AM
 

1wickedlq4stang said:

SCOTTY2THAG...  are you still using the stock truck pan?  my pan is like 2" off the ground so im going to cut and reweld it so it cleared.

November 19, 2008 12:58 AM
 

SCOTTY2THAG said:

Yes I'm using the stock truck pan for now.  There is a new pan that alot of people are using because of its compact size.  it is the pan they use on the hummer H3.  If I have to change pans this is the one I will use.

November 19, 2008 8:45 AM
 

1wickedlq4stang said:

SCOTTY2THAG... i was wondering what bell housing you were using, and if you had a part number.

December 8, 2008 7:26 PM
 

SCOTTY2THAG said:

The bellhousingis a Lakewood Blowproof unit that adapts a Tremec Tranny to a chevy motor.  Part number LAK-15030 from summit and it will come with the adapter pilot bearing too.  I don't know if you followed the previous installments where I described the modifications I made to it though.  I had to enlarge the hole the clutch fork came out of and welded a retaining nut on the opposite side of the input shaft for the new pivot ball location.  These alterations "or any for that matter" to the bellhousing will void your SFI certification that comes from Lakewood. This didn't matter to me because I will not be running the car at any sanctioned events plus my bellhousing was old enough that the cert ran out anyways. If you have any other questions let me know. I'll be more than happy to help where I can.

December 9, 2008 8:54 AM
 

cobra mark said:

I assume you will go with a centrifugal blower? Make-up your mind on what brand? and 1wickedlq4stang..... The state I live in has NO vehicle inspection. 1-race seat, NHRA legal roll bar(we all know they have less pipe than others, NASCAR, etc., which means less weight) Stock dash.. (I even took the A/C vents out.) steering wheel w/air bags. and that's it! Take a car apart, it's no secret, you would be amazed at the x-tra weight you can shed. Yeah, they look like legal bumpers..BUT..look again! I have been racked across the coals by 03-04 Cobra owners for doing this to a limited edition car. If you are familiar with these cars then you know they are on RECORD at 9.xx seconds at 3,500 lbs. Hell, The new Shelby Super Snake at 4,1xx lbs does 10 second pass' out of the box !!......remember.....4,000 plus LBS !!  BTW, The Ford 9 inch rear end weights LESS than the stock I.R.S. unit, and what's a daily driver supposed to look like?    HEY SCOTTY2THAG,  Sorry to hi-jack. good luck with the build.......see'ya at the track !!      

December 28, 2008 10:33 AM
 

leo said:

wow, this is phenominal. having read this a few times, I just started shopping for a fox to swap. I'm curious as to the clutch you used, however- since it's a ford specific trans on a chevy motor, assuming different input shafts did you use a ford disc and gm pressure plate or some other arrangement? And, assuming one was buying a trans and bellhousing new (yep,  I was just browsing your site), would a gm specific tremec save some efort, in your opinion?

March 11, 2009 2:36 PM
 

SCOTTY2THAG said:

The flywheel and clutch are f-body replacement parts.  The TKO uses the 26 spline input shaft like the GM units do so I didn't have to mix and match clutch disks.  If you shose to use a normal T-5 you would have to switch the disk out with the 10 spline unit. I'm not 100% sure what the differences "if any" there are between the TKO we sell and one that is classified as a GM unit.  From what I've seen they are virtually identical.  I chose this tranny for multiple reasons.  #1 I already had it sitting in the shop, #2 I knew that if I got the motor in the same physical location and the 5.0 then everything would bolt together and fit in its proper location on the Fox Chassis, shifter,crossmember,driveshaft etc. As far as the bellhousing goes, we don't have this particular one set up on our site yet.  I am in the process of doing that  as I'm typing.  It should show up tomorrow once everything updates.  Quicktime has just released a LSX specific bellhousing to a Tremec TKO500/600, 3550,as well as T-5 transmissions.  From the Photos I have seen the pivot ball location is already moved so you wouldn't have to modify it to make it work, just bolt it up and go.  I wish this would have been available when I started.  It would have saved me some time, on the other hand I wouldn't have gotten to use my creative thought process of making things work :) It looks like things are evolving to where this will be a truely bolt in application.  If you have any other questions I can help with please let me know.  

March 12, 2009 9:28 AM
 

leo said:

Thanks, that's great info. I think my confusion was due to off the shelf ford clutches taking a slightly smaller input shaft (1 1/16" vs. gm's 1 1/8"). I didn't consider the aftermarket nature of the tremec, which I assume uses the larger input, for strength, maybe? good to hear about the qt bellhousing option too, anything to simplify a cross-breed swap like this is a plus in my book.  Thanks again for the information, I look forward to seeing this car all the way ready to run.

March 12, 2009 8:26 PM

About SCOTTY2THAG

My dad always worked on Airplanes and cars while I grew up and I was right there perched under the hood throughout my childhood so naturally being a car nut is engrained into who I am. I have a tendency to take on projects normal people would not attempt like swapping motors into cars they werent intended to go in or fabricating parts I need instead of buying them. It is a sickness and luckily for me there is no cure.