Hey guys i need your help i want to install a 5.7l hemi in my magnum but i currently have a 2.7l engine! Does anybody know if i can just swap motors or is there more 2 it? Please let me know!!!!!!!
Alot of money and headaches .. it will be better to purchase a r/t instead.
this is a common question one I have asked myself too going a 3.5L .. some of the experts will respond shortly and explain why just buying v8 would be wiser.
We must question the story logic of having an all-knowing all-powerful God, who creates faulty Humans, and then blames them for his own mistakes. – Gene Roddenberry
You would also need the tranny & rear end from an RT. Along with that, the PCM + wiring harnesses. The amount of time to install & get it running would really drive the swap costs over the top. Might as well get a low-priced RT.
If you plan on doing the work yourself, and can either get a complete wrecked R/T, or find the parts cheap it is feasable. However if you are going to be paying someone to do the work for you find a black 300C and swap your parts over, as it wil work out to be cheaper to do than the labour and parts.
'When I was arrested I was dressed in black'
Mods: Predator 93 CAI, Air Hammer, Eagle Mani, Stainless Works Long Tubes, SRT8 diff-catback-suspension, Mopar Sways, REM Strut tower bar and Bumpsteer, Dual weave Grill, Daytona Chin and 20s, CSRT8 Diffuser, 6000K & 3500K HIDs, shaved letters, Old skool R/Ts, Hood Struts, 300C Handles & lower moldings, Two toned tails, BT Oil Catch and other goodies, and OEM remote hatch.
yeah, I'm with hemi mag, buy a rolled rt or srt and pull the parts (suspension, engine/trans/rear end, engine/trans management, etc.). Sounds like it would be expensive this way, but you're getting all the parts vs. trying to piece it all together.
Challenger Mods: PWR 393, Mean Street heads, Procharger D1 pushing 11+psi, SHR Nag1, DSS 1400 axles and drive shaft, SHR trans but with Paramount Dominator and stage2 valve body to finally be error code/limp mode free. BBS CH-R's and custom splitter with 2011 front spoiler. AAC SMD halos, 3K fog lights, white stripes, cervini wing, hotchkis springs, custom 10" sub w/ kicker amp, sequential tail lights.
2009 Dodge Challenger SRT8 Procharger D1 Supercharger: 10.895 @ 126.720 MPH
2006 Dodge Magnum SXT : Diablosport Predator 93 OPT: Big Bully CAI: RWD: 3.5L w/ 96mm bore: 4 speed auto trans
"Dude, whadaya got in that thing?”... "I got an amp, guitar, surfboard, ladder, 12 2x4s, and the rotting corpse of some pretentious Lotus-driving douche who asked me what I had in this thing.”
trade it in alot easier and cheapier
2005 magnum rt
borla cat back
hotchkis sway bars
eibach pro springs
R1 CONCEPTS DRILLED & SLOTTED ROTORS
Who needs another $20,000 plus in car payments....PLUS THE EXTRA $5,000 YOU WILL PAY IN INTEREST? If you trade your SXT in, the most I see them giving you would be $9,000 (they would sell you the R/T for $22,000).
The 3.5 to a 5.7 engine swap would only cost you a little more than the interest alone!
Last edited by Cro-Mag; 07-21-2009 at 02:37 PM.
a guy just swaped his 3.5 for a 6.1 on custom magnums.com, a few issues but they are worked out
list of parts needed for change off the top of my head
front springs /sway bars
rear springs/sway bar
i see atleast $7500.00 in used parts above
and i am sure there's stuff i can't think of
oh and what about smogging and registering this car ?
you can get used rt mags all day for $13k in california . i looked into selling mine when gas went through the roof .
why not look around for a 6.1 motor and trans and rear end might as well go to the 6.1 if ur going to drop all the coin
PWR 393, Twin 6262mm Turbos, SHR trans, Fore Fuel system, Wilson Hemi Sheet Metal Manifold
880 RWHP 775 RWT at 16 psi and 17* of timing
Tuned by Robert@ Ditos motors
Walk Softly And Carry Two Big A$$ Turbos!!!
IMHO, if you are going to swap motors, go 6.1L..........
If you are looking for more power down the road, you would have to re-build the 5.7L motor to take the strain and not blow up........If you are thinking about Supercharging/Turbo/or Nitrous, the stock 5.7L will not take a lot of boost.....A lot of guys have found this out the hard way........
At least the 3.5L and 6.1L motors have forged bottom ends........
2007 Silver Metallic Dodge Charger SRT8............The REAPER
HEMI Registry #1575.......PB - 13.390 @ 106.67 Mph.
Proud Member of The WTFDTSG Club.........
brakes should be upgraded (rotors & Calipers)
I entertained the idea of a 5.7L swap..........but the cost in Cdn funds didn't make it look that attractive.......
For $5398.00 U.S. I bought the Modern muscle 10 PSU Vortec Supercharger kit and did the install myself.
When properly tuned (This Thursday!!!) I will be at roughly 320 RWHP and should be in the low 14's in the quarter mile.......
A Stock 5.7L R/T has roughly 270 RWHP ( I am sitting at 260 RWHP right now with 20" wheels and without running my Water Meth Injection - that adds another 20 - 30 HP).............So i will be ahead in the RWHP, and have a motor with a forged bottom end........
I also like the fact that I went a different route then the normal performance route and decide to "Hot Rod" my 3.5L........
(mind you, the actual sticker price on all of these was $3-4k more, these were "sale" prices)
Warning: The above post probably contains 2 or 3 times as many words as necessary.
2005 SXT AWD. Bought March 2009. Totaled January 16th, 2013. 75k excellent miles together.
2006 Volvo S60R. Acquired Feb, 2013. Totaled September 18th, 2013. Too soon, beautiful girl, too soon.
1966 Ford F100. Acquired March, 2013.
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