Poll

Which engine would you put in your RC?

5,7L Hemi 360hp.
5.9L Magnum 390hp

Author Topic: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated  (Read 4069 times)

0 Members and 1 Guest are viewing this topic.

Offline High-Tech Redneck

  • I may grow old, but I refuse to Grow Up!!
  • Lifetime Supporter
  • Full Member
  • *
  • Posts: 1503
  • Gender: Male
    • Facebook
5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« on: September 18, 2007, 12:07:32 AM »
I was just curious on peoples opinion,as to which engine you would put in your RC and why (not counting cost)? This should be interesting. Did not find in search another topic like this.


Robert
'86 Dodge Ramcharger
'06 Dodge Ram 1500 Hemi
Army Vet
1984-1992
Wrench, Wheel, Wreck, Repeat!

gen1dak

  • Guest
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #1 on: September 18, 2007, 03:21:10 AM »
Of those two choices, I'd install the Hemi for street duty, that particular Magnum if I was doing mud-racing. That high HP Magnum will put an early 70's Duster solidly into the 12's on the quarter and is NOT a good street engine in the sense that it is a fussy hot-rod engine.
« Last Edit: September 18, 2007, 08:36:51 AM by gen1dak »

Offline DODGEBOYS

  • DODGEBOYS.NET / RCC Signiture Police
  • RCC Addict
  • ********
  • Posts: 22286
  • Gender: Male
  • show me the Flame and l might see the light
    • DODGE TRUCKS @ DODGEBOYS.NET
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #2 on: September 18, 2007, 05:16:45 AM »
for the WOW factor l,d use the Hemi / for every day fixablity / l,d take the 300 horse MAG
put your truck info HERE
MOPAR TO YA! AARON HOWORD TOWNSEND / SLANTEDMIND---GOD BLESSDODGEBOYS FSM STORE
ramchargercentral@hotmail.com
DO NOT use the site IM,s to contact me  l have them turned OFF

Offline Elwenil

  • Militant Parts Guy
  • Global Moderator
  • RCC Addict
  • *****
  • Posts: 22218
  • Gender: Male
  • I am the voice of reason in an unreasonable world.
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #3 on: September 18, 2007, 06:40:47 AM »
I'd go with the Magnum just because I had one and it was a great engine.  Actually I had a few issues with my Magnum.  I started out with the 300 HP version and blew an oil line to my oil filter relocation kit and gutted the bottom end.  I then replaced the short block with one of the Mopar Performance 11.5 to 1 short block assemblies.

  Turns out they did some bad machine work on the deck and it had 11 to 1 compression on one side and something like 12.3 to one on the other.  It busted a piston into what looked like pie slices with only the rings holding it together in the bore.  I called the tech line and raised hell and they sent me a new short block assembly.  This one ran like nobody's business.  11.5 to 1 compression with mild timing and an MSD 6AL on 93 octane gas.  It would push my '72 Charger with 2.76s to over 160 MPH, verified by police radar (don't ask).

  Oh, I did have a single plane intake on the Magnum also.  I started out with the dual plane that came with the 300 HP Magnum but when not paying attention to what I was doing and I was putting the intake on after the first short block swap, I followed the torque specs listed in the Magnum Engines manual to the letter and promptly busted the intake.  Seems there was a misprint in the manual and I just ran with it, lol.  When I called and raised hell about that, they agreed to send me a new intake and since they were both the same price, I asked for the single plane intake and they agreed.

My Magnum engine started out real bad.  Right after installing it I gutted the 904 that I had intended to last at least a month while my 727 was being built, then the fiasco with the oil line and then the intake and finally the busted piston episode.  After it was all said and done, it became one of the best engines I've ever had. 
L.Clemons

1988 Ramcharger-Mil-Spec AW450 Project-318EFI-NP435 4 speed-NP205 Transfer Case-Front & Rear Dana 60s-Braden Wormdrive Front Winch
I do not like shortcuts.  Any job worth doing is worth doing right.

Auribus Tenere Lupum

Offline eralov

  • Newbie
  • *
  • Posts: 114
  • Gender: Male
  • 78 RC
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #4 on: September 18, 2007, 07:27:22 AM »
the hemi is a great motor, but the magnum is more of a workhorse motor, can be found cheaper with the same hp rating than the hemi and will be easier to install of accessories and exhaust ect,  as it was an available engine in ramchargers.
1978 Dodge Ramcharger Royal SE
1969 318 stock, 727, 203, D44 front hd outers, D60 rear discs, 4.88 gears, 4" sus lift front, 2.5 sus lift rear + shackle flip, 3" body lift, 36" tsl's, fenders trimed, this truck will never be done

Offline Dodge 85 RC

  • Official Backwards Transmission Rebuilder
  • Mopar Nut
  • ******
  • Posts: 8937
  • Gender: Male
  • Its not a Bronco or a Blazer, ITS A RAMCHARGER!
    • Dodge R/C
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #5 on: September 18, 2007, 11:50:19 AM »
I think you would be happy with either but the hemi does have the wow factor
85 R/C 367/manual v/b'd 727/208, 4.10's ,Modified 4 inch RCC lift, 3 inch body lift 52 inch springs up front HD 3/4 ton 52 inch springs out back. About 10 inches of lift 35x12.50R15 M/T Baja Claw Radials 15x10 Black Rockcrawlers Custom HD bumpers
99 merc sable-wifes car
02 merc grand marquis

Offline EY8s

  • Stay thirsty my friends
  • Mopar Nut
  • ******
  • Posts: 6501
  • Gender: Male
  • I have a tinkering disorder
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #6 on: September 18, 2007, 06:53:12 PM »
Rock Crawlin - Technical - 300hp Magnum (320? now)
Mud Boggin' - Street Performance - Hi Perf. 360 Magnum.
Neat Factor and aftermarket parts made from unobtainium - 5.7 Hemi
Wow Factor - The Real Hemi Crate Engine

The 5.7 Hemi will be a great (more affordable) swap in about 5 years.

"Tomahawk"
360Mag/TF727/NP241/D60s/4.88/Lockers/37's/OBA/9500#winch/Self-Built

Offline High-Tech Redneck

  • I may grow old, but I refuse to Grow Up!!
  • Lifetime Supporter
  • Full Member
  • *
  • Posts: 1503
  • Gender: Male
    • Facebook
Re: 5.7L Hemi vs. 5.9L Magnum, Both Crate motors, both carburated
« Reply #7 on: September 19, 2007, 12:56:02 AM »
Thanks so far for the replies. I don't need a WOW factor, I know the cost of both. The info I was looking for came from eralov. Keep em coming. BTW, the Magnum now comes in 3 HP ratings, 320,390,395.No more 300.


Robert
'86 Dodge Ramcharger
'06 Dodge Ram 1500 Hemi
Army Vet
1984-1992
Wrench, Wheel, Wreck, Repeat!

 

email