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The XJ6.0 L98 & 6L80E Conversion (1982 XJ6)

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    The XJ6.0 L98 & 6L80E Conversion (1982 XJ6)

    Hi All

    As they say, if its not online it hasn't really happened - so its time to start a build thread for my 1982 XJ6 Jaguar LS conversion.

    After owning the car for almost 17 years, including 4 to 5 years as daily drive, 2 blown head gaskets, 1 fully rebuilt motor and endless hours of frustration Ive finally decided Ive had enough and its time to enjoy driving it without being concerned. It a beautiful car to look at, great to drive but has one of the most frustrating power plants known to man.

    Ive recently purchased a reasonably low K (140,000) L98 and 6L80E from a WM Caprice - Ive got the whole donor car sitting on my driveway so I can grab anything else I need during the conversion process.

    Although there are a number of 'off the shelf' kits available from the US for the LS into XJ6 conversions after doing my research I was unimpressed with the quality, or lack of. With many of the kits being adapted from SBC to LS using mounting technology from mid 60's Chevs. Ive decided to use a pair of US made Trans Dapt LS mounts coupled with VZ LS rubber mounts which will mount onto a fabricated base bolted to the original Jaguar mounting flanges.

    Ive also sourced an off the shelf LS rear hump sump and oil pickup from Aeroflow (HQ Style) which gives me the perfect clearance without any modification. As I'll be running a custom made stand alone wiring loom, i'll be removing all unnecessary Jag wiring as well as rewiring and concealing all of the headlight and indicator wiring.

    Progress over the past 2 weeks:

    * Remove Jag 4.2 boat anchor and trans

    * Start removing any surplus engine bay wiring

    * Commenced stripping all ancillary items from donor motor ready for removal this weekend

    * Taken countless measurements and notes to assist in initial mock up of mounts for trail fitment of new motor and trans

    * Trial fit VE/WM Radiator (minimal modification required for final fitment)

    * Sourced and ordered OTR, extractors, adjustable trans shift arm (to run standard Jag shifter)

    I plan on having the new motor and trans in for the first time this weekend to finalise the fabrication of the mounts etc, then I can finish up the mods for the radiator mounts.

    I'll keep you all posted as I progress.

    Dean
    http://www.performanceforums.com/for...0&d=1499502554
    Attached Files
    Current Garage

    1987 Mercedes 560 SEC (Ece)

    2007 BMW E60 530i

    2004 BMW E46 318i

    1982 XJ6 Jaguar 4.2

    #2
    Aeroflow HQ rear hump sump & Trans Dapt LS Engine mounts with 75mm VZ mounts.
    Attached Files
    Current Garage

    1987 Mercedes 560 SEC (Ece)

    2007 BMW E60 530i

    2004 BMW E46 318i

    1982 XJ6 Jaguar 4.2

    Comment


      #3
      Excellent. These are an awesome cruiser and would be epic with the 6.0 litre. Subscribed.
      Originally posted by thebluerx7
      The fact they want to ban cash makes me want to go out and use it full time again now .

      Comment


        #4
        Great start. How tight is the 6l80 looking?
        Der Führerwagen II E55 wagon
        p̶u̶r̶p̶l̶e̶ damson red shitbox XJ6 LS1 - gestating

        Comment


          #5
          After long-term ownership, it's great to read that you're keeping on, just in another phase.

          Subscribed, this is going to be good with the LS!

          Comment


            #6
            Originally posted by Rascasse View Post
            After long-term ownership, it's great to read that you're keeping on, just in another phase.

            Subscribed, this is going to be good with the LS!
            Exactly this.

            Comment


              #7
              Originally posted by drscrote View Post
              Great start. How tight is the 6l80 looking?
              Not sure yet - will know one Saturday once I've got both BW66 & 6L80E side by side.

              Im planning on running btw motor and trans around 25 to 40mm closer to the front from where yours appears to sit and both possibly 15 to 25mm lower in the bay and trans tunnel than the 'off the shelf' kits I've seen....thats the plan at this stage. Obviously if I run the whole set up lower in the body i'l have to shim the centre tail shaft bearing to suit - but thats no big deal.

              I'm not against 'realigning' the trans tunnel with a hammer and dolly or grinder if I need to.

              Did you run a one or 2 piece tail shaft in yours?
              Current Garage

              1987 Mercedes 560 SEC (Ece)

              2007 BMW E60 530i

              2004 BMW E46 318i

              1982 XJ6 Jaguar 4.2

              Comment


                #8
                I had one of these for a few years as a daily, very pleasant cars to drive, engines are massive, slow and stupidly temperamental. Super cool conversion. If youre SOR and ever need an extra set of hands let me know

                Comment


                  #9
                  Mine has a one piece tailshaft.

                  What are doing for headers? Mine has stock Corvette ones on opposite sides, but I've got a custom set waiting to go on which need a left hand starter conversion.
                  Der Führerwagen II E55 wagon
                  p̶u̶r̶p̶l̶e̶ damson red shitbox XJ6 LS1 - gestating

                  Comment


                    #10
                    Awesome!
                    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower." - Mark Donahue Penske Porsche 917

                    "In Japan we no give fark for Subaru" - Trust Japan Technical Director
                    (TM - AVENGE)

                    "You can never have enough power. I remember when we had Group B cars... THEN we had enough power!"
                    Juha Kankkunen - Rally of Argentina '02

                    Comment


                      #11
                      Originally posted by drscrote View Post
                      Mine has a one piece tailshaft.

                      What are doing for headers? Mine has stock Corvette ones on opposite sides, but I've got a custom set waiting to go on which need a left hand starter conversion.
                      Hmmm... maybe its time to consider one piece. I got a price today and its about half that of going 2 piece with new centre bearing.

                      Ive got the choice of a set of VE HSV extractors or the stock WM manifolds. I'm hopeful that the HSV set will fit, even if I have to cut them off just below the collector and modify from there. What I like about them is they appear to be a great starting point and easy to cut/weld etc if need be. Ive taken the heat shields off and intent to paint them black then wrap then in black heat wrap tape.
                      Attached Files
                      Current Garage

                      1987 Mercedes 560 SEC (Ece)

                      2007 BMW E60 530i

                      2004 BMW E46 318i

                      1982 XJ6 Jaguar 4.2

                      Comment


                        #12
                        Had a chance to make a little progress after work this afternoon (the advantage/disadvantage of being self employed and working from home). The L98 is almost ready to lift out- coil packs off, injector and sensor loom off, a/c hoses and condenser gone and just the last couple of bolts to remove the rad support. Its great to have the opportunity to throw an hour here and there during the week getting ready to pull it out on Saturday.
                        Attached Files
                        Current Garage

                        1987 Mercedes 560 SEC (Ece)

                        2007 BMW E60 530i

                        2004 BMW E46 318i

                        1982 XJ6 Jaguar 4.2

                        Comment


                          #13
                          Oh yeah. Keep the updates coming!
                          Originally posted by thebluerx7
                          The fact they want to ban cash makes me want to go out and use it full time again now .

                          Comment


                            #14
                            Can't wait to see this one done

                            Comment


                              #15
                              Originally posted by Dean 560 SEC View Post
                              The shifter won't be a problem - it'll select PRND okay it just won't have the tip function. The guy who's building my new LS loom for me who's done a few L98 & 6L80E conversions into other cars is going to 'tune' the shift points etc once the install is complete.

                              Ive removed the Jag charcoal canister - i've decided to use the Holden on from the WM with the LS purge valve etc I'll see if I can get this in behind the master cylinder where the vacuum tank used to live. I'm also pulling both Saddle-bag tanks out and installing a new alloy fuel cell in the spare wheel well with a new tank vent running out under the boot floor (rather through into the C pillars). This will also allow me to use the Holden 'in tank' fuel pump/reg etc.

                              Did you have your PS lines made locally? Or did you modify the Commodore ones to suit the Jag rack? I'm planning on having mine made in 2 sections (like in my 560 SEC) which has a join in a discrete and convenient spot so the bottom sections (from the rack to the x-member to the right of the front pully) can be installed with the engine out.
                              I copied this quote from Dr Scrote's thread so as not to clog it up too badly.

                              That vacuum tank behind the master cylinder is part of the climate control. The old clockwork system in a 1982 model won't be very happy about you removing it.
                              Keen to see your new fuel tank setup, I've always thought the twin tank setup is the worst part of these otherwise good cars. They're never supposed to vent into the C pillars though It's supposed to be a vapour expansion tank, but they do rust from the inside out. They live in the C pillar cause it's the highest point that they could be located, so that any liquid fuel/condensate would drain back to the fuel tank. Not sure if a vent below the tank is a good idea.
                              Originally posted by Marlin
                              Chickens will slip under water in the cover of darkness like a seal team and FUCK YOU UP.

                              Comment

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