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#1017121 - 06/20/11 05:08 PM 383 VS 440
CUDA8U Offline
super stock

Registered: 06/18/11
Posts: 1039
Loc: ALBERTA CANADA
WHICH IS BETTER TO BUILD FOR A STREETABLE APPLICATION ON PUMP GAS BUT CAN STILL TEAR UP THE STREETS?
I'M HOPING TO BE AROUND 500HP ON PUMP GAS.

COULD YOU GIVE REASONS FOR YOUR CHOICE PLS.

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#1017122 - 06/20/11 05:31 PM Re: 383 VS 440 [Re: CUDA8U]
DPelletier Offline
I Live Here

Registered: 04/20/05
Posts: 15134
Loc: Kelowna, B.C. Canada
The 440 for the same reason as the one I gave in your other thread. ....as I said, it isn't rocket science: the 383 and 440 are very similar only the 440 is 15% larger. Not sure what more you need to know

....and PLEASE turn off your cap locks.

Dave
_________________________
1970 Super Bee 440 Six Pack 1974 'Cuda 2008 Ram 3500 Diesel 2006 Ram 3500 Diesel 2004.5 Ram 2500 Diesel 2003 Ram 3500 Diesel 2006 Durango Limited [url] http://1970superbee.piczo.com [/url]

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#1017123 - 06/20/11 05:55 PM Re: 383 VS 440 [Re: DPelletier]
DennisH Offline
Vacation

Registered: 12/14/04
Posts: 5278
Loc: San Jose, California
I'm under that at 415 RWHP. 440. Almost enough for me to tear around town on pump gas. I'll always take more if I can get it.

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#1017124 - 06/20/11 07:18 PM Re: 383 VS 440 [Re: DennisH ]
HYPER8oSoNic Offline
top fuel

Registered: 11/21/09
Posts: 2275
Loc: Desert Tracker
I'll be the "stand alone" here. Not knocking off the 440 at all, (I'm a 413 guy! ) but I'd go with the 383. It can go to 500hp, but it WOULD definitely need the better heads to start with. Other reasons for which many "may" say it's insane but:
Less rotating weight (crank mass) in the motor.
Strong rods (when NEW) proven to go OVER 6200-6500 rpms with
a good safety margin to boot.
Oversquare bore/stroke combo with a 1.89 rod ratio - great for HI-RPM HP, midrange to hi-end torque.
Easy to obtain, cheap to build, but piston prices have risen lately!
In otherwords, it's an overgrown 340!!
Only drawbacks - it NEEDS a lightweight body to run really HARD to "coin" the sub 11 sec and faster brackets. Motor needs a "pro" type oiling system for the sub-12 sec brackets, which include enlarged main oil feed and return block passages
and possibly external oil lines and filters. Helps make them live longer!! A little more work than whats needed on the 440,
but they DO HAUL THE MAIL!!

_________________________
"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)

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#1017125 - 06/20/11 07:28 PM Re: 383 VS 440 [Re: CUDA8U]
440PURSUIT Offline
pro stock

Registered: 12/17/04
Posts: 1420
Loc: DC, MD Suburbs
Try the 383 with a 4.25 stroke and good heads, 496ci. Mine did 648 horse under 6k RPM and under 10:1. Hydraulic roller.
_________________________
1969 Hemi Charger R/T,
1969 Charger RT Clone
1969 Charger Pro Tour Project
1971 Barracuda Convert
1970 440 6pack Superbird,
1968 Fury I Police Pursuit 440 Super Commando 2 door sedan (Black/Blue)
1969 Dart GTS 340 Convert
1967 Barracuda Convert
1968 Barracuda Coupe
1972 Road Runner 340-4
1972 Charger Rallye 400-4
1972 Charger w 383
1972 Sebring Plus 440-6 Clone
1967 A100
1969 Coronet Pro Street
2009 Challengeer SRT8 stick
2006 Dodge Magnum 5.7
2017 3500 Dually

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#1017126 - 06/20/11 07:32 PM Re: 383 VS 440 [Re: HYPER8oSoNic]
71yelladustr Offline
super stock

Registered: 12/25/10
Posts: 1035
Loc: Missouri U.S.A.
440 all the way. When you say "tear up the streets" torque is what you want, not so much horsepower. Not saying the 383 isnt capable, but the 440 will be more docile and driveable at the same power level while making more torque.
_________________________
392 gen III hemi on E-85 727 trans Dana 60
10.02@134

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#1017127 - 06/20/11 07:40 PM Re: 383 VS 440 [Re: CUDA8U]
Pacnorthcuda Offline
I Live Here

Registered: 11/19/07
Posts: 19624
Loc: Kirkland, Washington
440, it has more displacement (you asked). And I'll be the 12th person to say TURN OFF YOUR CAPS

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#1017128 - 06/20/11 07:54 PM Re: 383 VS 440 [Re: HYPER8oSoNic]
CUDA8U Offline
super stock

Registered: 06/18/11
Posts: 1039
Loc: ALBERTA CANADA
so what's you opinion on the edelbrock top end kits?

and how much porting can be done to these head/intake combo?

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#1017129 - 06/20/11 08:10 PM Re: 383 VS 440 [Re: CUDA8U]
terzmo Offline
top fuel

Registered: 03/12/05
Posts: 1913
Loc: Pendleton NY
A 440 is obvious as the 383 supporters most likely vote for the underdog everytime....it just makes sense, that dollar for dollar the 440 is just as economical to build as a 383.....so what advantage is there with 57 less cubes....read the want ads and for one example...you'll see..."mopar for sale...383 with 440 heads" If the thing was that great it would run it's own heads....

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#1017130 - 06/20/11 08:13 PM Re: 383 VS 440 [Re: CUDA8U]
forphorty Offline
pro stock

Registered: 11/26/06
Posts: 1317
Loc: oklahoma
The answer to your question lies in my misspelled username

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#1017131 - 06/20/11 08:17 PM Re: 383 VS 440 [Re: terzmo]
HotRodDave Offline
master

Registered: 01/29/05
Posts: 9967
Loc: Kalispell Mt.
440 has bigger bore that helps un-shroud the valve and make more HP with the same heads. Also for the street the extra TQ is fun Any money you save buying a 383 will be lost when buying pistons. The differance in weight is minimal, not like the differance going from BB to SB and either big block build it is gonna be a pain to change plugs compared to the SB so the minimal differance in deck height don't really make it much easier. If the choice is 440 or 383 build the 440 every time.

BTW after 67 the 440 and 383 used the same heads
_________________________
I am not causing global warming, I am just trying to hold off a impending Ice Age!




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#1017132 - 06/20/11 08:21 PM Re: 383 VS 440 [Re: HotRodDave]
west Offline
master

Registered: 04/06/07
Posts: 4233
Loc: petaluma,ca. u.s.a.

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#1017133 - 06/20/11 08:37 PM Re: 383 VS 440 [Re: CUDA8U]
HYPER8oSoNic Offline
top fuel

Registered: 11/21/09
Posts: 2275
Loc: Desert Tracker
Quote:

so what's you opinion on the edelbrock top end kits?

and how much porting can be done to these head/intake combo?




Eddys have good head/intake combo's. Myself,
I was thinking along the lines of Indys and a
"deep ported intake" read: aluminum, non-Magnum, type Like I said, it takes a bit more to make a 383 run really hard!!

_________________________
"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)

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#1017134 - 06/20/11 08:48 PM Re: 383 VS 440 [Re: 71yelladustr]
HYPER8oSoNic Offline
top fuel

Registered: 11/21/09
Posts: 2275
Loc: Desert Tracker
Quote:

440 all the way. When you say "tear up the streets" torque is what you want, not so much horsepower. Not saying the 383 isnt capable, but the 440 will be more docile and driveable at the same power level while making more torque.




I hear you loud and clear. ..but one factor overlooked, the advantage of 57 cubes CAN be offset by LESS vehicle weight, where HP is the
ruling factor of overcoming frictional drag on the top-end scale. Less weight doesn't need as much torque as it does hp.

_________________________
"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)

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#1017135 - 06/20/11 08:57 PM Re: 383 VS 440 [Re: terzmo]
HYPER8oSoNic Offline
top fuel

Registered: 11/21/09
Posts: 2275
Loc: Desert Tracker
Quote:

A 440 is obvious as the 383 supporters most likely vote for the underdog everytime....it just makes sense, that dollar for dollar the 440 is just as economical to build as a 383.....so what advantage is there with 57 less cubes....read the want ads and for one example...you'll see..."mopar for sale...383 with 440 heads" If the thing was that great it would run it's own heads....




For one year 440's were running 383/413 non Maxi-heads, before the Magnum heads were used on Magnum engines, so on and so forth.

_________________________
"Stupidity is Ignorance on Steroids"
"Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)

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#1017136 - 06/21/11 06:56 AM Re: 383 VS 440 [Re: HYPER8oSoNic]
DennisH Offline
Vacation

Registered: 12/14/04
Posts: 5278
Loc: San Jose, California
There is no replacement. For displacement. 440.

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#1017137 - 06/21/11 07:31 AM Re: 383 VS 440 [Re: terzmo]
JohnRR Offline
I Win

Registered: 01/20/03
Posts: 73560
Loc: U.S.S.A.
Quote:

....read the want ads and for one example...you'll see..."mopar for sale...383 with 440 heads" If the thing was that great it would run it's own heads....




You see ads like that because the seller is UNEDUCATED about mopar big blocks ... FYI the 383 - 2bbl runs the EXACT SAME heads as the 440, only difference is the valve springs .

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#1017138 - 06/21/11 07:55 AM Re: 383 VS 440 [Re: JohnRR]
dennismopar73 Offline
top fuel

Registered: 11/14/09
Posts: 2174
Loc: ill
400 block, stoker kit ,make 500 cci,
street/race, lighter block, be had cheap,
set rpm heads, mid to low 11s, could be able run in the 10 without whole lot work,
jmo

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#1017139 - 06/21/11 09:17 AM Re: 383 VS 440 [Re: dennismopar73]
HotRodDave Offline
master

Registered: 01/29/05
Posts: 9967
Loc: Kalispell Mt.
The weight differance is mabey 20# tops while the cube differance is 57 cubic inches, 20 LBS is not nearly as significant as 57 cubic inches
_________________________
I am not causing global warming, I am just trying to hold off a impending Ice Age!




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#1017140 - 06/21/11 10:13 AM Re: 383 VS 440 [Re: HotRodDave]
dennismopar73 Offline
top fuel

Registered: 11/14/09
Posts: 2174
Loc: ill
more than 20# , try 75+ little over 3/4 in across the whole block,
main area in the low dec much stronger.

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