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    In theory

    if you install an HO in to a pickup that did not have an HO it would not run well, would it?
    2000 Grand Marquis LS
    2000 F150 XLT 6 inches of lift.
    1987 Bill Blass Mark VII - Sold
    1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
    Mercury Owners Group member
    Save The Whales, Restore an Old Station Wagon!!

    #2
    Originally posted by 85MercPark View Post
    if you install an HO in to a pickup that did not have an HO it would not run well, would it?
    Elaborate.

    I don't see a problem, really. If it's an EFI 5.0, they both use 19-pound injectors....worst case, re-use the stock truck cam. I would insist on using the 302 EFI intake, and porting the lower, as it's a phenomenal unit....and toss on a set of headers. I'm tossing around the idea of maybe buying a 1988-1992 Bronco (before the E40D), and using my 306 stuff with that instead, as I need a 4x4 around here for at least 6-7 months of the year....I'm sick of the near-death experiences I get every time I drive my peg-leg 2wd Astro van around in the snow and ice due to the back of the vehicle sliding around everywhere, even with studded tires and a ton or so of extra weight in the back....

    The problem you're really going to have to deal with is where to put the knock/detonation sensor, which goes onto the passenger side of the block truck; it's not used on a 5.0 car. I have an idea as to how to make it work....
    Last edited by ; 07-21-2009, 01:50 PM.

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      #3
      The ECM would need swapped? Correct?
      2000 Grand Marquis LS
      2000 F150 XLT 6 inches of lift.
      1987 Bill Blass Mark VII - Sold
      1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
      Mercury Owners Group member
      Save The Whales, Restore an Old Station Wagon!!

      Comment


        #4
        What year truck is this? is it a speed density truck or mass air?

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          #5
          86.

          speed density I assume.
          2000 Grand Marquis LS
          2000 F150 XLT 6 inches of lift.
          1987 Bill Blass Mark VII - Sold
          1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
          Mercury Owners Group member
          Save The Whales, Restore an Old Station Wagon!!

          Comment


            #6
            of course it would if you did it right..
            Give a man a fish and he will be fed for a day. Teach a man to fish and he will promptly forget that he once did not know, and proceed to call anyone who asks, a n00b and flame them on the boards for being stupid.

            Comment


              #7
              Originally posted by cld783 View Post
              of course it would if you did it right..

              no shit Dick Tracy...
              2000 Grand Marquis LS
              2000 F150 XLT 6 inches of lift.
              1987 Bill Blass Mark VII - Sold
              1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
              Mercury Owners Group member
              Save The Whales, Restore an Old Station Wagon!!

              Comment


                #8
                EFI engines in the trucks are already pretty close to HO spec's
                I am not sure I would use a HO cam in a truck motor, but they are fairly similar so it should work. the only thing that changes is the ignition firing order between truck and HO cam.

                If its an 86 Y/M truck, it wont have E7TE heads, but it should have 19lb injectors.
                E7 heads (or something better) would help wake the motor up.
                Keep the stock Truck ECM since its batch fire instead of SEFI... pretty sure the pin outs on the HO (car) ECM are completely different from the truck ECM.
                2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
                89 Crown Victoria LX HPP -- SOLD 9/2010
                88 Grand Marquis LS - The Original -- Totaled 5/2006


                I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

                Comment


                  #9
                  This is all great info, but the question still is,

                  If an HO motor is put in a non HO truck will it run right as it is? Or will it need mods?
                  2000 Grand Marquis LS
                  2000 F150 XLT 6 inches of lift.
                  1987 Bill Blass Mark VII - Sold
                  1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
                  Mercury Owners Group member
                  Save The Whales, Restore an Old Station Wagon!!

                  Comment


                    #10
                    it should run as is... all that would be required is swaping the IGNITION firing order to HO/351 because of the cam
                    2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
                    89 Crown Victoria LX HPP -- SOLD 9/2010
                    88 Grand Marquis LS - The Original -- Totaled 5/2006


                    I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

                    Comment


                      #11
                      Cool

                      Thanks
                      2000 Grand Marquis LS
                      2000 F150 XLT 6 inches of lift.
                      1987 Bill Blass Mark VII - Sold
                      1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
                      Mercury Owners Group member
                      Save The Whales, Restore an Old Station Wagon!!

                      Comment


                        #12
                        Originally posted by 88grandmarq View Post
                        it should run as is... all that would be required is swaping the IGNITION firing order to HO/351 because of the cam
                        That would actually make sense because of the batch-fire injection system.

                        Be interesting to hear how the truck ECM deals with the bigger cam.
                        2012 Mazda5 Touring | Finally working on the LTD again!

                        Comment


                          #13
                          Honestly... the HO cam is not much different from the truck cam.

                          The spec's for the 5.0L Truck engine are;

                          Int. Lift -- .422
                          Ext. Lift -- .448
                          Int. Dur. -- 256
                          Ext. Dur. -- 266
                          Lobe Center Line 116

                          That compares with the following spec's for the 5.0L HO engine;

                          Int. Lift -- .444
                          Ext. Lift -- .444
                          Int. Dur. -- 266
                          Ext. Dur. -- 277
                          Lobe Center Line 115.5
                          2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
                          89 Crown Victoria LX HPP -- SOLD 9/2010
                          88 Grand Marquis LS - The Original -- Totaled 5/2006


                          I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

                          Comment


                            #14
                            I ask beacuse I am looking at an HO that a guy put in a truck. After 17000 miles it's running really rich.
                            2000 Grand Marquis LS
                            2000 F150 XLT 6 inches of lift.
                            1987 Bill Blass Mark VII - Sold
                            1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
                            Mercury Owners Group member
                            Save The Whales, Restore an Old Station Wagon!!

                            Comment


                              #15
                              Lots of things could make it do that, vacuum leaks being high on the list. I also wouldn't figure than an HO motor under stock truck intake and ECM would be a problem. If anything, it would run slightly lean since its got slightly more cam lift and the HO motor has better heads than an 86 would have. In reality though, I seriously doubt it would be a problem unless you were trying to drive the truck like a Mustang.
                              86 Lincoln Town Car (Galactica).
                              5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                              91 Lincoln Mark VII LSC grandpa spec white and cranberry

                              1984 Lincoln Continental TurboDiesel - rolls coal

                              Originally posted by phayzer5
                              I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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