Well first of all posting this from my phone so its gonna be all bunched up so i am sorry but hopefully someone comes and helps. The motor comes from a 97 bird. 78k miles motor had lt's and 3100 stall and was sopossably tuned. I picked up the motor harn and comp for 625. Engine is on the stand and ready. Here are my questions. 1) all that is left of the old lo3 is the block i planed to just to remove the motor and leave the trans and just drop in the lt1 any tips on getting the four trans bolts from the top well the ones that can be
reached from there i tried with a key but could not get enough force to loosen these bolts should i just yank the trans out with the motor since that seems that would be easier. Any tips? 2) the oil pan got alot of dents due to getting lifted and i dont want to risk getting leaks would the pan from my lo3 fit fine from my understanding it might fit but the oil level sensor will be unused. 3) i plan tn keep the 700r4 and have it built later on i know that i need the throttle bracket and longer tv cable would a tpi trans cable work? I also plan to run dekotas unit as well to get everything right. 4( how would i bypass vats i figured the vats box is inside the car like our third gens and i will prob run into problems with it im sure. Everything else seems to ae covered

Remove and install everything from the bottom. Saves time and swearing trying to line up the 6-800lb engine/trans

don't worry about the oil level sensor. It's just another leak point that you can get rid of by swapping the oil pans.

Sounds good. What about Vats bypass? I think the guy who sold me the LT1 might have included some wires going into the interior. I was thinking of getting a VATS box from a yard car and then just bypassing that box instead of sending out my pcm or buying the equipment to disable it.



My other question is the throttle/trans cable. Would tpi cables make the fit?

In order to get a functional vats you will have to get a new key and body control module to integrate with the PCM. Otherwise, it won't work. You're better off disabling it completely. In order to get the 700r4 connected correctly, you will need a tv cable, throttle body, and throttle bracket from a 93 camaro. The tpi cable is too long and will burn up your trans. You can use a lokar adjustable also. It may be worth the extra money to get an aftermarket throttle body since it will come with provisions for a tv cable and it will flow better.

Any brands to look into for the TB? Or is Holley the go to brand?

Dealers choice.....Holley, Edelbrock (BBK), TPIS, ASM all have good products.

I was looking at TPIS TB, looks good. I will be looking more into Holleys Stud kit. As for the TV cable. Mind linking me the Lokar cable?

I will see how it turns out, I got the bracket yesterday for free from a yard car but the TB was gone already. I was wondering, do TPI TB fit LT1s? If so how can I make the updated TPS and IAC work?

Aight just to make sure:


The 700R4 can be made to work with my 97 LT1, with the aid of a 92-93 LT1 Bracket which I have acquired. 92-93 LT1 Detent cable and using a 93 Throttle body or an aftermarket one. Like I said before, Would Tps and IAC work with the throttle body swap? As for getting the speedo to work, what would be needed? I heard about using the dekota box. Need more info on this. Also for the detent cable, I have had no luck finding one, does any aftermarket vendors sell one? Would an adjustable work? Also for the TC lock up, what is needed for that as well basically what kit do people go with.


My first and most concern is VATS, I have read around and have seen that I will need to disable it via tuning or having it disabled for me. I have seen prices ranging from $150 to $250 and think its outrageous. I figure if its that much, I might as well buy the hardware/software and do it myself and have the freedom to tune the car down the road. Anyone know what would be required or even better a programmer that can do the simple task of disabling vats and emission equipment?


Thanks,
Carlos

Use the add-on stud bracket for the TB or source one from a 92-93 car. 90-92 TPI TV cable will also fit
http://cgi.ebay.com/ebaymotors/89-92...item1e5f5ad34e
http://cgi.ebay.com/ebaymotors/TPI-T...item588502d8a4

[quote]Like I said before, Would Tps and IAC work with the throttle body swap? [quote]

Yes. The LT1 PCM reads them fine, heck your TPI ECM will read them fine

Swap the 40 tooth reluctor ring from a 4L60E into your 700R4 under the tailhousing and plug it strait in to the LT1 wiring. You could use a converter box but I wouldnt. It'd be converting 4,000ppm (pulse per mile/700R4) to 40ppr (pulse per revolution/4L60E)

TCC lockup requires and external vacuum switch and related wiring

Go for it. Be aware there are 3 types of tuners required depending on the PCM you use. 92-93 used SD old ECM much like 90-92 TPIs and is tuned in the same manner burning removable chips. 94-95 are considered the golden years because it's still OBDI and can be tuned on the fly. 96-97 are OBDII and tuned similar to the 94-95's but the program is significantly more expensive

I agree with swapping the reluctor ring but not the TV cable. The TPI cable is too long for the LT1 and it won't work right. I tried this on mine before my 6 speed swap and the trans never shifted properly. I finally went to the dealer and got a 93 TV cable and it solved my problems. They probably don't make them anymore so you will have to go with a universal TV cable, such as this http://www.summitracing.com/parts/LO...00TP/?rtype=10

Thanks 81LT1, Bookmarked it for future reference.

@Pocket, I been told alot about the 94-95 being the golden years for LT1 PCMs. Mine is a 97. As far as the software, I can probably pick that up later, but know anywhere where they just sell the hardware? The other thing is well that I can probably pick up a 94-95 PCM for cheap locally. Thats counting every other LT1 including B-Body, etc. I know it will probably need to be reprogrammed but it is compatible with my current harness? If so what is the complete list of LT1's for that year? Im heading over to Wiki for that info.

If you're looking for the cables to hook up and scan the computer, search for akm cables. He's got a good product and I don't think it was too expensive. As far as the years, in my opinion, 95 was the best year since it was still ODBI and is easily tuned with most software. 96 and 97 are both OBDII and they have a crank sensor and 2 extra 02 Sensors, among some other wiring changes. The OBDII systems actually made a little more horsepower but due to the wiring and extra sensors, most people stay away from them if they can get a 95 system. You could use a 95 PCM and harness with a 97 engine and just leave the crank sensor disconnected if you want, and then you could wire in a ODBI ALDL so you can scan and reprogram. I know you think the fee for tuning is a little high but you will have to get it done before the car will run. You will run into too much hassle trying to integrate the VATS just to save a couple of bucks. Look at this way, your paying the company to tune to the computer, which will almost always include disabling the VATS if you tell them to. You can buy the software and cables and do it yourself, but you will already be at the price of what a good and knowledgable tuner will charge you. Just my opinion though.

Looks like I shall sent my PCM to get it done.

Also I stretched my LT1 Harness and boy I think he might of included some interior harness. I checked Pockets LT1 Harn thread and did not see a fuse/relay box so I guess he indeed include interior since my harness has two body moldings (Like the one that goes into our pass side fender and onto ecm)

So I took some pics to where he cut some wires. Which I am guessing leads to the 4th gen cluster and electronics? Here are the pictures.

http://item.mobileweb.ebay.com/viewi...id=96587864848

Would that be the reluctor ring to get? I want to get anything I need to adapt the trans before dropping it in the car. I would love to just have to do wiring after the motor and trans are in.

[QUOTE=Carlos773;4743772]Looks like I shall sent my PCM to get it done.

Also I stretched my LT1 Harness and boy I think he might of included some interior harness. I checked Pockets LT1 Harn thread and did not see a fuse/relay box so I guess he indeed include interior since my harness has two body moldings (Like the one that goes into our pass side fender and onto ecm)

So I took some pics to where he cut some wires. Which I am guessing leads to the 4th gen cluster and electronics? Here are the pictures.


You might check with J. Solomon at

http://www.lt1pcmtuning.com/

I believe he can use your OBDII computer and tune it to OBDI specs but you should contact him to confirm this. His prices and time line seem to be very good.

That reluctor will work on your trans fine. Be sure to get a VSS for it too. Pretty much all 4L60E vehicles will have one (except 4x4's) and they're alot easier to get off than the ring which is pressed on the output shaft

OBDI and OBDII PCMs are different. You cant delete the OS of one and load it on the other. Fortunately Delphi used the same pinout for both, just adding a few pins when converting to OBDII. Switching from OBDII to OBDI only requires the older PCM. The extra wires required for OBDII are unused and can be deleted

Pictured is a 92-93 LT1 harness, either from a C4 or Fbody. It's going to take alot of work to update to even the OBDI PCM. You can tell by looking at the PCM ends
94-97 LT1

Old TPI, but SD LT1s look similar

Thanks for the info. I ordered the reluctor ring. About the Vss sensor. What sensor would be needed? Would a replacement from Autozone for a 97 fit the bill? Also my uncle tried to be nice and somehow got ahold of a pcm from a 95 caprice. I remember seeing someone that was able to flash it to a 95 fbody specs. Would it really be worth it to use the 95 pcm?

94-95 are considered the golden years for LT1 PCMs because of ease to tune

A 97 VSS will work, but its expensive new. Grab one from a JY for cheaper. Its a non contact part so if its not been hit with something, they usually dont go out

Its under $25 not that much. Got like $32 bucks in autozone rewards that I haven't used.

Also to t make sure I need to swap the reluctor on my 92 700r4. From what I have been told all electronic were 40 tooth so all I would need is the vss. Is this true.

No. 90-92 4L60s used a gear driven VSS. It's still an electric unit, just not the same as the newer 4L60Es used

Cool thanks pocket. Also any tech article on the reluctor swap? I was told some special tools are needed while others said jaw pullers would work.

Also I have a question about the harmonic balancer. I removed it and left in a bad place. It go dropped and moved around. I had it marked but me removing it four times already three marks are there. What is the install procedure for it? Or just bolt it on any way possible?

Nice job so far man. I'm in the middle of a 97 ltx swap aswell. Keep up the good work!

Balancer is neutral balanced so you can clock it any direction. It does have a specific front/back so make sure the wider part of the pulley points forward. One side has about 1/8" of belt flange, the other about 1/4". Wider side to the front

Reluctor came in and I have removed the tail housing. Just to make sure the part I am replacing is the red gear?

Right

So autozone had the small vss. Guy checked the 3.8 and it was the right one or seemed so.


So what's going on here? Would a v6 vss work? There's a ton of caprices at local yards would they have the fat one I need?

If they have a 4L60E, then it will work. Only small VSS I know of was for 4x4 S10's. Same signal, just doesnt fit the hole

Alright ill probably get one from a caprice tomorrow. Ill see. Also pocket since I'm doing this then vss pcm disable is unnecessary correct? As for the TC lockup what's the best kit for that?

All that's left now is buying a OEM detent cable and a way to hook it up to the TB.