jayman Posted July 21, 2009 Report Share Posted July 21, 2009 hey guys, finally acquired a 3.8 from my step fathers scrap yard he recently closed. took the complete interior and engine wire harness, as well as the engine and transmission complete with the K frame, out of a 99LSS with 90k, im looking to put this in my 94 vert, was wondering if anyone has done this or has any tips to save time mounting and making this motor work. current progress on the project is going well, cleaning up the motor and changing pumps/pulleys/gaskets etc.. heres a few pics of the project and more to come. thank you for your time any advise or tips on mounting etc.. would be much appreciated Quote Link to comment Share on other sites More sharing options...
Crazy K Posted July 21, 2009 Report Share Posted July 21, 2009 :willynilly: :willynilly: Irondogg wanted the car you just cut up! nice. good luck on the install! Quote Link to comment Share on other sites More sharing options...
jayman Posted July 21, 2009 Author Report Share Posted July 21, 2009 lol theres not a whole lot left of the car..lol everything i didnt need got pretty much shredded Quote Link to comment Share on other sites More sharing options...
hotrodolds Posted July 21, 2009 Report Share Posted July 21, 2009 You will need a OBD-2 wiring harness for the inside of the vehicle. You'll probably want one from a 1997 car. You'll use your outer CV joints, axles, and inner tripod. You'll use the tulip from the 4T64E-HD trans. Since yours is coming out of an H-Body, you'll need to get the mount brackets from a W-Body. You may need the lower mounts from a W-Body as well. ZZP would be the place to get poly or solid lower mounts. The first L67 swap was done in a Cutty 'Vert. My Cutty has a blown up L67 in it. You being OBD-1 will make this more involved. Quote Link to comment Share on other sites More sharing options...
hotrodolds Posted July 21, 2009 Report Share Posted July 21, 2009 You'll need a W-Body '99 GTP PCM as well, probably. Quote Link to comment Share on other sites More sharing options...
jayman Posted July 21, 2009 Author Report Share Posted July 21, 2009 hmm... so for the pcm out of the gtp, i have the one out of the LSS, is it different or are they programmed different? Quote Link to comment Share on other sites More sharing options...
hotrodolds Posted July 21, 2009 Report Share Posted July 21, 2009 If you have the one from the LSS, and never plan on modifying the engine, that's OK. But, if you plan on taking the engine to any more real power, the GTP PCM's are easier to tune and what not. Quote Link to comment Share on other sites More sharing options...
Dark Ride Posted July 21, 2009 Report Share Posted July 21, 2009 94 is OBD 1.5, shouldn't be too bad. Plus if you are swapping the whole harness i don't *think* you will need a different PCM, although the hardest part will be convincing the OBD 2 harness engine side to talk to the OBD 1.5 harness and electronics from the interior side, it most certainly can be done. Mounts will be needed, I would look for a junkyard Lumina LTZ or Monte Carlo with the 3800 since they used the same subframe, you could swap the mounts. Quote Link to comment Share on other sites More sharing options...
hotrodolds Posted July 21, 2009 Report Share Posted July 21, 2009 '94 is OBD-I. '95 was OBD-1.5. '96 was OBD-II. He will probably want the interior harness from a '96+ car, equipped like his. You're correct about the mounts. Any W-Body with a Series II 3800 (L36/L67/L26/L32) would work, though, so that opens up a ton of cars. For tunability, he'll want the GTP PCM, ideally from model years 1998-2002. Quote Link to comment Share on other sites More sharing options...
Dark Ride Posted July 21, 2009 Report Share Posted July 21, 2009 What was so special about a GTP PCM? 94 is OBD 1.5 I know because I took a ECM out of a 94 cutlass to put in a 95 lumina and it works. Quote Link to comment Share on other sites More sharing options...
jayman Posted July 21, 2009 Author Report Share Posted July 21, 2009 i had planned on replacing all gauges with aftermarket ones to change the look, i think we had planned on using very little wire from the new harness, we have Mitchel etc.. for wire diagrams and all that to match up compatible wiring from the new and old... unless.. it would be wise to go to that extent and change the whole harness..., not quite sure on the plan for upgrading the motor just yet. it seems like a a headache right at the moment. but a definite in the near future. but i will definitely look for that gtp computer. agian... thankyou for the input and! one more thing... the crank pully is being a pain...does not want to come off.. cant remember if its reverse thread or not.. anyone have the same problem? Quote Link to comment Share on other sites More sharing options...
hotrodolds Posted July 21, 2009 Report Share Posted July 21, 2009 There isn't anything overly special about the GTP PCM, but it is easier to tune than the H-Body. For what reason, I can't tell you that I know for sure. But, it is the PCM of choice for swap cars. Even guys with Bonnevilles, and stuff use GTP PCMs sometimes. If he has no intention of ever hooking a tuner up to it, it's no big deal. And, I'm not saying that an H-Body PCM can't be tuned. But, there is more support for the GTP PCM. As far as OBD1.5/OBD2, you may well be correct. I forgot that some '94 W-Body got the 3100 which was the OBD1.5 stuff. My bad on that one. Quote Link to comment Share on other sites More sharing options...
Dark Ride Posted July 21, 2009 Report Share Posted July 21, 2009 I don't know much about tuning OBD II, I wasn't doubting you on the PCM, i was just curious since I'm swapping the 3800 out of a lumina into the TGP soon and planned on using the LTZ PCM. I think the lumina's were the only W-body car to get OBD I and the 3.1 for 94 everything else got the 3100. I would swap the whole engine side of the harness and then make the two halves work together, I think it would be easiest. Quote Link to comment Share on other sites More sharing options...
95 vert Posted July 22, 2009 Report Share Posted July 22, 2009 98-9 Lumina or Monte 3800 harness will make it so much easier. Mates up to your bulkhead connector with just moving a few wires around. Same year GTP Pcm with ZZP L67 conversion kit. (For supercharger valve and map extension). I've done one and I'm in the process of doing two more. Another 95 convertible and Anthonys old car, the black 96 coupe. Got any questions let me know. Quote Link to comment Share on other sites More sharing options...
AL Posted July 22, 2009 Report Share Posted July 22, 2009 When you go to sell the 96 Coupe, let me know! Quote Link to comment Share on other sites More sharing options...
GP4U2NV Posted July 22, 2009 Report Share Posted July 22, 2009 I used a 99 Monte Harness for my swap. The interior harness is still stock. Also, if you have the vin for engine/trans I can run it to give you the gear ratio. I would be concerned that it has a "highway" gear. A lot of the bonny's and LSS's had a highway gear. Real doggy down low. Bad AS$ on the highway though. Quote Link to comment Share on other sites More sharing options...
jayman Posted February 10, 2010 Author Report Share Posted February 10, 2010 Bringing this back up. lol ive decided to keep the car and attempt this swap. swapping stock motors are much easier lol anyway, ive figured out the mounting for all but one mount. the front lower mount.. can anyone explain what to do here? again the motor is out of an LSS and from what i see the mounting and placement of somethings are a lot different from a GTP or monte. Got the wiring under control its just the mounting of this mount and the upper 2 in the front ill have to get. anything helps thanks Quote Link to comment Share on other sites More sharing options...
jayman Posted February 11, 2010 Author Report Share Posted February 11, 2010 heres some pics so far. starting to look good. in the second picture in the yellow i just modified my old mounts to fit the trasmission. but the arrow is what i had to remove to make the oil filter fit, and below that is where im stuck.... anyone have pics or know what i need to use to mount the motor here? teh H-body mount applies to the transmission on the drivers side but does not match up to the frame. as well as my old mount on the passenger side doesnt mount up either due to a big aluminum pice used to mount the compressor... lol what a nightmare lol Quote Link to comment Share on other sites More sharing options...
95 vert Posted February 12, 2010 Report Share Posted February 12, 2010 You need to use an oil filter adapter for a W-body and a steel oil pan so you can use a W-body passenger mount. W-body pass mount bracket won't fit the aluminum pan. Balancer is a bitch to get off sometimes on these engines since it's press fit. I've had a few I just couldn't get to break loose. Quote Link to comment Share on other sites More sharing options...
jayman Posted February 12, 2010 Author Report Share Posted February 12, 2010 You need to use an oil filter adapter for a W-body and a steel oil pan so you can use a W-body passenger mount. W-body pass mount bracket won't fit the aluminum pan. Balancer is a bitch to get off sometimes on these engines since it's press fit. I've had a few I just couldn't get to break loose. It is a steel pan on this one, and teh oil filter looks right to me. as in its not hitting aything anymore lol this is with the piece cut out of the frame. please tell me i should have done that lol on the left in picture 2 is where i just modified my old mount to fit in the frame. in picture 3 is where im thinking a mount should go, as opposed to under the crank pulley. also which i couldnt get off lol Quote Link to comment Share on other sites More sharing options...
Crazy K Posted February 12, 2010 Report Share Posted February 12, 2010 This thread is full of fail a 3800 swap for a 96+ series II (III as well?) requires the use of the components, mounts, brackets, and accessories from a donor 1996 Buick 3800. This is the 1996 3800 motor mount. It goes in the cradle mount on the passenger side of the frame that you just cut off....YOU JUST WRECKED YOUR FRAME. Quote Link to comment Share on other sites More sharing options...
GP4U2NV Posted February 12, 2010 Report Share Posted February 12, 2010 I am concerned. I was not able to use the pf52 long filter, but the correct filter a pf47 fitted fine. Quote Link to comment Share on other sites More sharing options...
GP4U2NV Posted February 12, 2010 Report Share Posted February 12, 2010 This thread is full of fail It goes in the cradle mount on the passenger side of the frame that you just cut off....YOU JUST WRECKED YOUR FRAME. Ouch, are you trying to put a L67 from a C/H car in it with those mounts? I have heard it done but, I know that the best and easy way is to use w-body engine mounts. I have a 2000 Regal mount set up in mine. You will have to switch the oil filter adapter as said. But, I think you might be getting a new engine frame before long. Quote Link to comment Share on other sites More sharing options...
95 vert Posted February 12, 2010 Report Share Posted February 12, 2010 Ok, the w-body oil filter adapter is straight and sticks out further (and a little higher) than the H body. With the correct adapter you would have been able to use the correct mount that goes under the pan. I think you did alot more work here than you needed to my friend. Quote Link to comment Share on other sites More sharing options...
jayman Posted February 12, 2010 Author Report Share Posted February 12, 2010 Ok, the w-body oil filter adapter is straight and sticks out further (and a little higher) than the H body. With the correct adapter you would have been able to use the correct mount that goes under the pan. I think you did alot more work here than you needed to my friend. a ha, well the way it sits i guess it'll work. Ive got some flat stock and the original mount from the 3.4 for the front. and just mock up a mount for the front... getting regal or w-body part for this thing local here in Niagara falls is like pulling teeth. i don't have the time or money to wait for shipping. i have have one more wrecker to check this weekend which is an hour away.. i don't think the frame's wrecked tho. i still have that mount intact i just removed the weld from it. but if i can make a mount for the front then i believe ill be alright. Quote Link to comment Share on other sites More sharing options...
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