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Hello and thank you for reading...
I will be (when weather cools down) transplanting a 94 lt1 into my jag, No progress on swap itself yet, but I bought and rebuilt the entire drivetrain from a 94 Pontiac formula, everything from AC condenser back to the driveshaft.
I know I will be using just about everything except the driveshaft, May even get to use it if I am really lucky (which I never am).
I got to drive car before buying the drivetrain, but it was running pretty rough, so I tore motor down, what I wasn’t told was that car must have been sitting a while because I had pistons where the rings were stuck.. other than that everything looked ok. To be safe I sent block and crank to machine shop and was nice to hear that all it needed was a hone and crank needed polishing.. along with standard bearings and freeze plugs etc, so I got it all back and started the reassembly, I used the original rods and pistons (after machine shop got the rings off of the two) I went with the lt4 hotcam installed 2 degrees advanced (I know it’s old school tech, but drove a friends caprice years ago that had one and loved everything about it), and 1.6 roller rockers, other than that it’s pretty stock. I will be running rams horn manifold as it’s about the only thing that works and will clear the steering shaft, so not ideal, but I opened them up best I could to be close to the d port shape.
I have already sent pcm off to Moe Bailey and he made all necessary changes for me, also while I had the opti off (even though it ran) I sent it off to the opti guy on eBay and had it rebuilt.
i have downloaded everything I can find to help me with this swap from shoebox and lt1 swap etc, I already have scan9495 as well, I should be in pretty good shape, but be ready for my questions.... I will of course be detailing this swap on here with lots of photos as I proceed .
stay tuned!
Let me apologize in advance for a duplicate post in case the mods dont catch it, I posted a couple of pics of where I am.with this, but didnt notice it said that its awaiting approval, so when it didnt show up, I did it again.... anyways.. until a mod checks in, im.looking for best advice on car direction... car facing in means I have to push car back and forth for engine/ trans pull and install, or car facing out means I have to deal with engine hoist against a 2 inch step at entry of garage.... both ways are a pain, but which way would you go???
P.s. working entirely in driveway would be optimal however HOA says it's a no-no..
Well, a few months have passed, lt1 is in the jag, amd looks like it belongs there!, had a few issues in getting it running, all my own fault.... jag has certain cicuits that are hot in different key positions, after figuring that out she fired right up, ran like crap, but ran!! Next was injector issue, previous owner had swapped in 42 lb injectors but not programmed for them, so i put in a set of stock ones and she purrs like a kitten, albeit an angry kitten, the hotcam has a fantastic idle!!
will try to upload some phots separately as last time it went to moderation and never showed up...
Well...shes finally finished!! Its been a journey for sure. After i got it all in and running, transmission went out, sent it out for a rebuild, got it back reinstalled, no 4th, back to transmission shop, this time they can pull it... on thier dime!! Takes them a month of incorrect diagnosis before deciding to rebuild again.
All is fine for 4 days, then i am leaking power steering fluid, rack is old and all seals have given up the ghost!! Took a while to find a new/rebuilt one, that had correct inner tie rods.. showed up with wrong ones of course, nowhere to be found is the outer tie rod ends to match so i ended up swapping them from old rack to new ( inners).
I figured while it was out and ledt side exhaust down pope out as well i should probably have new lines made. Only way to have that done was to add fittings to rack, which in turn increased height of where line goes, althiugh i finally got it to go one, i wish i had told hydraulic shop to cut iff and braze my old fittings onto the new lines.
Anyway, shes all done finally, i have only gotten a few hundred miles on her, so shes not broken in yet,
but she runs like a dream! So glad i did this swap!!!
That turned out pretty slick. Congrats on your efforts.
your site was invaluable during my endeavor.
there have a been a few people that i couldn't have done this without!
shbox.
Moe Bailey.
injuneer.
Gary Doug.
Thats just the big hitters that got me through the major hurdles, amd countless other across the varied forums i joined that answered my questions!
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Lt1 into 83 jag xj6 progress to date 
