6.1 vs 6.4 - Page 2 - Dodge Challenger Forum: Challenger & SRT8 Forums
General Challenger Discussion This section contains general discussion about the Dodge Challenger. If it does not fit into a more specific area, it probably belongs in here. (Dodge Challenger General Discussion)

LinkBack Thread Tools Display Modes
#11 (permalink) Old 12-10-2012, 02:06 AM
Senior Member
Isaac-1's Avatar
Join Date: Sep 2012
Location: SW Louisiana
Posts: 417
Thanks: 11
Thanked 51 Times in 41 Posts
Feedback Score: 0 reviews
A lot depends on your long term goals, these days unless you run into a heck of a deal a used 2010 6.1 SRT8 is going to be about $9,000 less than a similar mileage used 2011 6.4 SRT8, with that much money you can buy a good positive displacement supercharger and put out 50-100 HP more than the 6.4 (depending on how safe of tune you opt for).

2010 Plum Crazy SRT8 with Manual Transmission-------

Mods list: K&N Typhoon CAI, Skip Shift Eliminator , Petty Strut Tower Brace, Diablo Predator 91CAI tune, License Plate backup camera with Lockpick V2, mini spare tire and adapter, Moroso Catch Can, some BT bling, 3rd brake pulser, Larry's mod Hurst shifter, coming soon Web Electric Sequential tail lights and LED under door lights
Isaac-1 is offline  
Sponsored Links
#12 (permalink) Old 12-10-2012, 02:11 AM
Junior Member
Join Date: Dec 2012
Posts: 8
Thanks: 2
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
(Thread Starter)
yeah im eventually going to supercharger it. is compression too high on the 6.1s and 6.4s for a solid supercharger on the stock motors?
erictaf857 is offline  
#13 (permalink) Old 12-10-2012, 07:04 AM
Supporting Vendor
Modern Muscle's Avatar
Join Date: Dec 2010
Location: Martinsville
Posts: 2,222
Thanks: 274
Thanked 561 Times in 357 Posts
Feedback Score: 0 reviews
Originally Posted by erictaf857 View Post
yeah im eventually going to supercharger it. is compression too high on the 6.1s and 6.4s for a solid supercharger on the stock motors?

If you are looking for long term reliability then both motors can handle about 8lbs of boost.
Modern Muscle is offline  
#14 (permalink) Old 12-10-2012, 07:15 AM
Lifetime Premium Member
EDDIE T's Avatar
Join Date: Sep 2008
Posts: 904
Thanks: 10
Thanked 25 Times in 23 Posts
Feedback Score: 0 reviews
get the 6.1 there is options to stroke and bore to a 392 426 440 and then s/c. Or have the 6.1 forged,heads and cam and your golden!

EDDIE T is offline  
#15 (permalink) Old 12-10-2012, 07:24 AM
Senior Member
conceptmachine's Avatar
Join Date: Aug 2011
Posts: 917
Thanks: 78
Thanked 75 Times in 66 Posts
Feedback Score: 0 reviews
with the 6.4 supercharged with 8psi, people are getting just shy of 650HP. Throw in a couple bolt ons and you there. In an auto, with the right tires, that is a quick machine...really don't need it much quicker for street use... But thats up to you. Buy a cheap car wit nonworking motor...and drop in a 426 and supercharge. You'll need new tires every month. LOL
Have fun deciding

'10 Toyota RAV4 green
'13 Toyota Tacoma TRD
'14 GT 500 silver and black
'11 GWE SRT Challenger - traded
conceptmachine is offline  
#16 (permalink) Old 12-10-2012, 08:46 AM
Lifetime Premium Member
war machine xxl's Avatar
Join Date: Apr 2012
Posts: 166
Thanks: 0
Thanked 23 Times in 15 Posts
Feedback Score: 0 reviews
Someone please correct me if I'm wrong, but as far as the engine goes, the only difference between the 6.1 and 392 is the bore and stroke, correct?

2012 Challenger...totally NOT stock.
war machine xxl is offline  
#17 (permalink) Old 12-10-2012, 08:55 AM
Senior Member
IDMTfirefighter's Avatar
Join Date: Aug 2009
Location: So. IL near St. Louis
Posts: 7,691
Thanks: 453
Thanked 1,240 Times in 731 Posts
Feedback Score: 0 reviews
now that they are tunable the 6.4L is the way to go.
Warranty will be moot anyway if you mod it with FI


2009 TorRed S/E

9/11/01 nose badge | 3.5L hood badges | Hood pins | MOPAR hood struts/pedal kit/fuel door | blacked out side mirrors | Under dash ambient light | Jones Full Boar exhaust | MOPAR hockey stick stripes | Script grill badge | Diode Dynamics accents | Amber driving light | EL wire interior accent
IDMTfirefighter is offline  
#18 (permalink) Old 12-10-2012, 09:11 AM
Lifetime Premium Member
SRT Wasp's Avatar
Join Date: Sep 2010
Location: Burlington, Ontario, Canada, Earth, Sol
Posts: 703
Thanks: 14
Thanked 66 Times in 55 Posts
Feedback Score: 0 reviews
Originally Posted by princesspaola21 View Post
I've had an RT and I've had a 392... I wouldn't trade back!

Sent from my iPhone using AutoGuide.com App

Sent from my iPhone using Autoguide

SRT Wasp is offline  
#19 (permalink) Old 12-10-2012, 10:06 AM
Senior Member
chris1992's Avatar
Join Date: Nov 2008
Location: Pineville, LA
Posts: 2,808
Thanks: 9
Thanked 144 Times in 103 Posts
Feedback Score: 1 reviews
At the moment, the 6.1 is your best bet if you plan on going into the motor. But if you just want to slap a blower on and call it done, then the 6.4 would be the way to go.

2009 Dodge Challenger R/T A5

SRT8 Brembos, JBA shorties, JBA catless mids, 3" MBRP catback, k&n drop-in filter (with the stock box), 3200 FTI TC, MTCM, canned DS 91oct tune, and 275/40/17 MT ET's

1/4 mile PB 12.390@108.78
chris1992 is offline  
#20 (permalink) Old 12-10-2012, 11:03 AM
On Vacation (Temp)
Join Date: Jun 2012
Location: Chicago/Southside Irish
Posts: 676
Thanks: 272
Thanked 168 Times in 103 Posts
Feedback Score: 2 reviews
Just traded in my 2011 R/T for a 2013 SRT8, no comparison, the statement that a stock R/T is faster than the 392 SRT8 is a false statement
The Chromer is offline  
Sponsored Links

  Dodge Challenger Forum: Challenger & SRT8 Forums > General, Performance, and Technical > General Challenger Discussion

Quick Reply

Register Now

In order to be able to post messages on the Dodge Challenger Forum: Challenger & SRT8 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
6.1 vs 6.4 STRAIGHT8 6.1L (2008 - 2010) 83 10-21-2014 03:15 PM
Goodbye 6.1 - Hello 6.4 !!! GNorSRT8 6.4L / 392ci (2011 - ?) 42 12-17-2012 08:44 PM
6.4 shortblock with 5.7 parts 340party Performance Modifications 14 11-20-2012 02:04 PM
Supercharged 6.1 Hemi? Cuda340 General Challenger Discussion 6 03-09-2007 10:26 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome