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The World Famous Drag Week Durango - 5.2L Magnum upgrades

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  • #31
    We soaked the heads in Purple Power for about a week. Judd took them out today and pressure washed them. They look fantastic. Springs, seals and retainers will be here this week.

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    Life is short. Be a do'er and not a shoulda done'er.
    1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
    1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
    1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
    1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
    1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

    Comment


    • #32
      Gaskets arrived yesterday, valve springs today, retainers tomorrow and head bolts should be here Thursday. Things are rapidly progressing!

      Click image for larger version

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      Life is short. Be a do'er and not a shoulda done'er.
      1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
      1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
      1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
      1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
      1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

      Comment


      • #33
        Judd lapped valves and assembled the heads today!

        I plugged all our engine data into Desktop dyno just for fun and was surprised at what it spit out.
        ​​​​​​
        380hp @ 5500 and 400lbft @ 4000

        I don't expect it will make that much even though I was on the conservative side with my data input.
        If it makes 340ish we'll be doing back flips. Should perk up the Durango quite a bit.

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        Life is short. Be a do'er and not a shoulda done'er.
        1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
        1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
        1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
        1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
        1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

        Comment


        • #34
          Good to see Judd getting a head in life! (Sorry - I just HAD to do that.....)

          Dan

          Comment


          • #35
            As with any project, you occasionally run into unexpected issues. We were all ready to bolt the heads on when we realized the lifters needed to go in first. That's ok, we will just drop them in.... or will we?

            We poked the first set in and the link bar contacted the top back edge of the lifter bore. Crap. When both lifters are supposed to be on the base circle, only one could actually be completely down because it would teeter-totter on the lip. Ok. We masked off everything, dropped some old lifters in the bores and Judd manned the shop vac while I took a die grinder with a carbide to trim the bore lips. Everything went good and we managed to not make a gigantically huge mess. Bullet dodged.

            Then Judd dropped in the lifters and bolted the heads on! We set the intake on to see how it is going to look.

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            Life is short. Be a do'er and not a shoulda done'er.
            1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
            1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
            1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
            1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
            1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

            Comment


            • #36
              That lifter thing just sucks. Wouldn't you think that whoever made those lifters would have test it them to see if they would actually work? But then, I guess that's par for the course with performance engine building......

              Dan

              Comment


              • #37
                Intake is on, valve covers are painted and someone is itching to install it. I think we should just keep admiring it for a while.

                Click image for larger version

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                Life is short. Be a do'er and not a shoulda done'er.
                1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                Comment


                • #38
                  Just a few random pics I forgot to add.

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                  Life is short. Be a do'er and not a shoulda done'er.
                  1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                  1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                  1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                  1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                  1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                  Comment


                  • #39
                    Headers are on, valve covers are on and the weather is supposed to be nice this weekend, soooooo.... We are thinking about swapping engines!

                    I'm a little nervous about it since this is his daily driver and since I have never pulled an engine in a Durango. I *think* it will be straight forward, but we all know how things can go wonky in nothing flat.
                    Life is short. Be a do'er and not a shoulda done'er.
                    1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                    1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                    1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                    1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                    1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                    Comment


                    • #40
                      Right! Pulling the cab on a bunch of trucks or dropping the cradle seems to be normal for a lot of cars these days...in a bit of irony, your Mustang(s) hood doesn't really even have to come off.

                      Weather won't get much nicer this year!!
                      Flying south, with a flock of bird dogs.

                      Comment


                      • #41
                        I think it will come out the top fairly easy. We will yank the hood and the body lift should make getting to the bellhousing bolts and stuff easier.

                        The only voodoo with a Magnum apparently is setting the fuel sync. The "proper" way is to set it with an expensive scan tool The "ok" way is to set it with a volt meter. All fuel sync is, is the relationship between cam timing and injector timing. I believe it really only affects idle.
                        Life is short. Be a do'er and not a shoulda done'er.
                        1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                        1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                        1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                        1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                        1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                        Comment


                        • #42
                          Originally posted by BBR View Post
                          I think it will come out the top fairly easy. We will yank the hood and the body lift should make getting to the bellhousing bolts and stuff easier.

                          The only voodoo with a Magnum apparently is setting the fuel sync. The "proper" way is to set it with an expensive scan tool The "ok" way is to set it with a volt meter. All fuel sync is, is the relationship between cam timing and injector timing. I believe it really only affects idle.
                          And in the worst case you can probably get it running with the volt meter method and take it to someone with the fancy scan tool (hope that's not needed). Love this project!

                          Dan

                          Comment


                          • #43
                            Wheew. Loong weekend. Swapping an engine in a Durango is not an easy job. It took me quite a while to figure everything out. The oil pan is straight down in front of the transmission so you cannot access the converter bolts. You have to pull the starter (which is not easy), the transmission dust plate, and remove the bolts through the starter hole. The motor mounts are giant and bolt to the motor, transmission and front differential. 2 bolts were hidden by the oil filter. I had a hard time figuring out just which bolts needed to come out. We had to swap oil pans, (which we did not expect), water pump, distributor and flexplate. My arms look like I got in a fight with a cat.

                            We started in on it Saturday morning and worked on it all day and finally quit when we had the new motor on the hook ready to drop in. Sunday, we didn't make it up there until 12:30 or so. We managed to get the engine in with the headers on, which are considerably wider than the manifolds. We had to go real slow, but we made it in without destroying anything. It took FOREVER to get the trans lined up with the engine. The flexplate on these also serves as the crank position sensor so instead of just being flat like a normal Mopar plate, this one has a ring that the converter lugs have to fit inside of. It is real easy to get the ring hung on the lugs when trying to mate the two. We slogged though getting everything all connected and routed. Before we dumped coolant in it and installed the fan and shroud, we wanted to see if it would fire up and run. Because small block Mopars are soooo hard to prime, I chose to pull the fuel pump relay and spin the motor over to prime it. We did. No pressure. What? I put the relay back in to see if it just needed more rpm to prime. Motor lit right off. WHOO HOO!!!! But no oil pressure. Crap!!! Shut it off and Judd says we are leaking oil. A lot of oil. Phooey!

                            It was coming from the oil filter area. We look and the filter is not seated on the adapter plate. What? We pull the filter and discover that the adapter plate is ON BACKWARDS. Holy smokes. We flip it around, put the filter back on, hit the key, no oil pressure, and more oil on the floor. What the heck???? We pull the adapter off the old motor and put it on, and put the filter back on. This time I decided we should just bite the bullet and prime the engine. We pulled the intake on the old motor and retrieved the intermediate shaft. Pressed the gear off, cut the end off and I welded an old 3/8" extension and swivel to it so we could spin it with the drill. We pulled the distributor and I took a piece of wire and snaked it underneath the intermediate shaft gear and managed to wiggle it out. The gear is almost the same diameter as the distributor base so the wire had to slip into the gear teeth to wiggle past the block surface. Yikes. Once that hurdle was cleared, I stuck the priming tool in, spun it with the drill aaaaannndddd...... it leaked.

                            I jump on the internet and sure enough, there is supposed to be a gasket under the adapter plate. I go back and check the old block. No gasket. What the heck? It was too late to go to the parts store, so we called it a night. Soooo close to a win and I suppose it was a win because it lit right off. We get home about 10 and I shower then make a sandwich and think, "Hey, I wonder if I have one of those gaskets in my drawer of random gaskets?". I went to the garage and sure enough, there was one in there. Been there AT LEAST 20 years. Lol.

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                            Life is short. Be a do'er and not a shoulda done'er.
                            1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                            1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                            1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                            1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                            1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                            Comment


                            • #44
                              This sounds a lot like my saga of putting a replacement LS in my Grandson's Trailblazer. Same deal with getting the converter bolts thru the starter hole. On the TB it took me half a day to work out which combination of extensions and sockets would get the job done and even though I had the engine in and out several times it never did get easy. Guess I'm saying that all these modern vehicles are tougher to work on than the old-timers we're used to. Hope you can plug up that oil leak in your next work session.

                              Dan

                              Comment


                              • #45
                                Great success!! Judd installed the adapter plate gasket and put a new Motorcraft filter on. We spun it over with the starter while I ran the oil pump so we could circulate oil to everything. No leaks this time!

                                We fired it up for just a minute with no coolant in it and everything seemed fine, so we installed the fan and the shroud and put coolant in it.

                                We started it up again, let it run for a few minutes then I winged the throttle a couple of times and the (accidentally left unclamped) heater hose on the intake manifold blew off and a geyser of coolant shot all the way to the ceiling. Lovely.

                                Once we clamped the hose, we pulled it outside and hosed it all off, but man, there was a large mess in the shop. Lol

                                I took it for a drive and it seemed lazy. Like it was requiring way too much throttle input. I felt it might have something to do with the fuel sync and maybe with the throttle body that we used. We set the sync with a volt meter.... Easier said than done but it definitely ran better afterwards. Swapped to the original throttle body and suddenly we have throttle response again.

                                First impressions: it's noisy. The hydraulic roller cam and lifters make a lot more noise than the stock stuff did. Seems to be a common complaint with some performance oriented hydraulic roller camshafts. Not too worried about it though. Off idle power seems better than stock. The big tires, stock converter, and 3.55 rear gears don't help that situation. I think where this cam will shine is the 3000-4500 area, but I didn't get on the gas hard and stay in it.

                                Now we tune. I will do some HPTuners work on it, primarily with the ignition timing as I feel like it is very conservative from the factory. I think that really wake it up more. Timing is important. The 83GT went from running 12's to running 10's just from getting the timing sorted out.

                                Looks like a win so far!!

                                Next major project will be an exhaust system upgrade!!

                                Life is short. Be a do'er and not a shoulda done'er.
                                1969 Galaxie 500 https://bangshift.com/forum/forum/ba...ild-it-s-alive
                                1998 Mustang GT https://bangshift.com/forum/forum/ba...60-and-a-turbo
                                1983 Mustang GT 545/552/302/Turbo302/552 http://www.bangshift.com/forum/forum...485-bbr-s-83gt
                                1973 F-250 BBF Turbo Truck http://www.bangshift.com/forum/forum...uck-conversion
                                1986 Ford Ranger EFI 545/C6 https://bangshift.com/forum/forum/ba...tooth-and-nail

                                Comment

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