gen 3 hemi swap in a j body?

Engine Swaps

  1. efriedrich

    efriedrich Well-Known Member

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    x2, are you using a Nag1 and what rearend, cheetah?
     
  2. Joe12459

    Joe12459 Well-Known Member

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    Mechanically, it's pretty much done. Just a lot of interior and wiring to go. I used NAG1 and a B body 8 3/4 rear with 489 case and 3.23 sure grip. I had a driveshaft made with a CV joint that attaches directly to the NAG1 flange.
     
  3. Joe12459

    Joe12459 Well-Known Member

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    I'll be posting more pics soon.
     
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  4. Captain Caravelle

    Captain Caravelle Moderator--Mopar Maniac

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    Awesome!
    More pics!!
     
  5. greymouser7

    greymouser7 Well-Known Member

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  6. Joe12459

    Joe12459 Well-Known Member

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  7. Joe12459

    Joe12459 Well-Known Member

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    10913520_1000169736660169_1085994718_n.jpg 11095211_1000169739993502_1073097829_n.jpg 11164144_862206190482062_1292924427_n.jpg 11169056_1000169726660170_1046290252_n.jpg 11178655_1000169709993505_1942061960_n.jpg 11185849_1000169723326837_526427706_n.jpg 11198870_1000169753326834_1629429408_n.jpg 11198928_1000169706660172_1396895675_n.jpg
    A few more before pics. Lots of wiring left, but it all works.

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  8. Joe12459

    Joe12459 Well-Known Member

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    engine bay2.jpg enginebay1.jpg
    Engine bay, mostly finished. Just needs detailing.

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  9. Captain Caravelle

    Captain Caravelle Moderator--Mopar Maniac

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    Wow!!!!
     
  10. Mcfly68

    Mcfly68 Well-Known Member

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    half the concerns are irrelevant with an FMJ..the K member and suspension are fully self contained, there is no suspension loads on the body directly like an A, B or E when using the alterkation front end. The only change I would make is to use actual tierod ends, in a street application are minimally stronger design over heim ends in non linear loading ( stronger taper fit studs into the knuckle over a bolt being the major difference). Honestly though not a major concern. I went a different way with mine, using a stock v8 crossmember, that has created a lot of issues to overcome. That and a completely different and smaller engine bay than even an A body. With the stock K member there is no solution for exhaust other than custom headers, especially keeping the power steering. Even any of the solutions for the other body styles dont work due to the different engine compartments. ( even the easy passenger side has no off the self or factory solutions, and yes I have tried them all..I have 4 sets of headers and manifolds to prove it...lol). The custom headers are the biggest obstacle. The brake booster clearance is easy to overcome..I just went with a hydroboost set up ( could have gone manual brake, but no thanks I have 4 wheel disks or could have used a smaller booster. With the stock K member there is only about 1/2" of room to move the engine forward. The hemi power steering pump has more than enough pressure to run the brakes and steering. So with a pressure reducer for the steering side Hydro boost was the solution I felt worked best for me). The only other obstacle was the exhaust and steering staft, but all kinds of solutions in the aftermarket to get rid of the rag joint that occupies just enough room to make things difficult. In a FMJ it is a limited support swap. very little in the aftermarket available and it isnt popular enough for the aftermarket to start making parts ( the TTI mounts dont work and they arent interested in making them work), next to no info available....I know of 3 people who have got one in, including me. It isnt terribly difficult, but fab skills and above average mechanical skills are highly recommended...lol. I would like to see the alterkation setup for a fmj if you have a picture of that to see how much room it actually gives you with out that steering box and how much further forward it places the motor if any ( by the looks in your engine pics, it seems to be a good 1" or more than with the stock k member)
     
    Last edited: Apr 26, 2015
  11. Joe12459

    Joe12459 Well-Known Member

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    Your build sounds great! Please post some pics!
    I will be back in the garage on Wednesday. I'll put the car on the lift and take lots of suspension pics. The AlterKtion made it very easy to install the engine, with lots of room for everything. It doesn't necessarily move the engine forward by design. I ordered mine without the mounts welded in, because I used the NAG1 trans, and didn't want to cut up the tunnel, so I mounted the engine about 3 inches forwarded, and didn't have to cut anything. Everything fits with no problems.
     
  12. Monkeyed

    Monkeyed Well-Known Member

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    Awesome work!!! Looks like it belongs there!

    That is a lot of wire, I'm surprised how much runs to the back, I guess I figured you'd only need the stuff that can tuck under the dash. If I was doing that build, I'd be pulling what's left of my hair out trying to find ways to conceal that all without getting bulges in the carpeting.. I'd probably end up running it all underneath the car and drilling holes :icon_scratch: :laughing5:
     
  13. Joe12459

    Joe12459 Well-Known Member

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    I'm still figuring out what to do with all of this wire, but it shouldn't be too bad.
     
  14. Captain Caravelle

    Captain Caravelle Moderator--Mopar Maniac

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    How many ponies is that 5.7?
     
  15. Joe12459

    Joe12459 Well-Known Member

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    Right now, stock 08 charger with a very mild tune, but I'm sure I could squeeze a little more out of her.
     
  16. 79410aspenrt

    79410aspenrt Well-Known Member

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    wow that's a ton of work you just did. wish I had the patience to do that.
     
  17. MiradaMegacab

    MiradaMegacab Well-Known Member

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    Awesome build!!
    Great thread!!
     
  18. Joe12459

    Joe12459 Well-Known Member

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    interior1.jpg interior2.jpg interior3.jpg interior4.jpg interior5.jpg interior6.jpg
    The first test fit of the dash pad went well. All vents/ducts etc are fabricated and installed. All works well. Just needs finishing work now!

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  19. Joe12459

    Joe12459 Well-Known Member

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    suspension1.jpg suspension2.jpg suspension3.jpg suspension4.jpg suspension5.jpg suspension6.jpg suspension1.jpg
    Here are a few of the AlterKtion suspension. Keep in mind, I'm a mechanic, not a photographer!

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  20. Mcfly68

    Mcfly68 Well-Known Member

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    Thanks for the pics of the front end. What set up for the rack/spindles/brakes is used with the alterktion?