5.7 Swap into D150 Completed

Discussion in 'Engine & Performance' started by Yoox_II, Nov 7, 2016.

Sponsored By: Moe's Performance
  1. Mega-Hemi

    Mega-Hemi Senior Member

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    That's a nice looking truck, and now it'll run like a beast too. I'd love to have a project truck like that.
     
  2. fasthemiram12

    fasthemiram12 Senior Member

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    Got the same project in the works...
    What motor mounts were used?
     

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    Last edited: Nov 8, 2016
  3. Yoox_II

    Yoox_II Senior Member

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    The mechanic fabricated mounts using a combo of the old 318 mounts and the new 5.7 mounts
     
  4. RonJon '06

    RonJon '06 Senior Member

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    What did you end up using for the gas tank and fuel pump?
     
  5. Yoox_II

    Yoox_II Senior Member

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    Using the stock gas tank but retrofitted a 2012 ram fuel pump. I gas gauge isn't working as of yet. I found some semi brake lines that are rated for 138psi and a hemi needs 57psi, plus they were 10x cheaper than buying actual fuel lines
     
  6. crazzywolfie

    crazzywolfie Senior Member

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    you could have got rubber fuel line fairly cheap. i am pretty sure even the "low pressure" fuel line is rated for 60 psi or something like that. i know the guys at my local store have mixed it up a few times when i tell them i want fuel line. it is for a fuel injected vehicle but i don't need something rated for 70-80psi. you could have also got steel fuel line. the stuff is cheap but pretty hard to bend.
     
  7. usaf2006

    usaf2006 Senior Member

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    I'm sure I'm not the only one who would love to see a video walk around and start up!
     
  8. Yoox_II

    Yoox_II Senior Member

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    Good points crazzywolfie, I was in a bit of a time crunch with finding parts so I jumped on the semi brake lines when I found them for so cheap. The some steal lines would have been nicer looking for sure. I will post a link to a walk around once I make one hopefully this weekend. Maybe try a 0-60 video as well.

    Question, a G3 hemi is rated at like 398HP. Obviously it's a little lower since it's not brand new, maybe 375? Anyway, is there any reason I WONT be able to notice a power difference? Will my old 727 transmission restrict the hemi's power? Also, the engine seems to rev very low when in gear, so I might need to get a different rear end to wake it up a bit
     
  9. crazzywolfie

    crazzywolfie Senior Member

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    you should notice a big difference. the 727 won't restrict the power but it is not as efficient as newer transmissions. that brings up the next point. you may want to save for a transmission swap or rebuild because that newly gained power will likely cause the transmission to fail especially if you are driving it like a race truck. i wouldn't touch the gears in the rear. they are pretty much matched to work with the gears in the transmission. you don't want the engine to be reving high at highway speed. if it shift at a lower rpm with your foot to the floor then you probably need to keep adjusting the kick down linkage. it effects when and were it shifts or kicks down. i know i got the one on my 89 adjusted so that you barely notice 2nd gear is gone
     
  10. usaf2006

    usaf2006 Senior Member

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    Well gen ii hemis are supposedly 345 hp, but most stock motors dyno around 260. I'm guessing you're in the mid 300s.
     

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