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Dodge - Plymouth 225 Inline Slant 6 Cylinder Engine

The Dodge 225 slant six engine was one of the most popular engines every produced by Chrysler. The 225 was produced from 1960 until 1983 and was unique compared to other engines because the bore was much smaller than the stroke. This allowed the engine to produce a very large amount of torque which caused it to spread far beyond the use of the average automobile. It is similar to the Ford 300 inline 6 in the sense that it was not only used in cars and trucks but also in a vast array of farm tractors, forklifts and even boats.

The 225 slant six came with a one barrel carburetor that more or less suffocated the true potential of the engine. Many racing enthusiast quickly found out that a 2 barrel carburetor for the 225 would really make a lot of difference in the performance of the engine. From 1960 to 1962 Chrysler offered an over the counter performance kit for the 225 known as the Hyper Pak. This kit included a 4 barrel carburetor, new intake manifold and a bunch of other goodies that pushed the 225 from its base horsepower of 145 up to 195 horsepower at 5200 rpms.

As emissions control laws became stricter in the 70s the Dodge 225 saw several changes in order to continue its long production run. One of the biggest changes came in 1977 with the introduction of a turbo charged 225 slant six. The turbo charger only lasted for two years in the gas 225 engines but did return from 1980 to 1983 to be used in the 225 turbo-diesel.

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Comments

1973 dodge dart sport
anyone have the torque specs for the upper and lower balljoints for a 1973 dodge dart sport
#12 - dave rauhut - 08/16/2014 - 10:58
complete engine specs for 225 slant 6
just bought a '73 dart sport, want to tune it up and am looking for as much info as I can get.plug gap, rpm, etc etc..any help would be appreciated.
thanks
#11 - dave - 07/20/2014 - 21:19
1978 DODGE D 100 225 CID
YES WHAT IS THE IGNITION TIMING SPECS FOR A 1978 DODGE D100 WITH A 225 SLANT6.
#10 - DAVID SCHOTT - 03/23/2014 - 19:21
Back in the days
Remember when I used to find them in auto showrooms. These were the days!
#9 - Auto Showrooms - 07/09/2013 - 10:43
manual
I need 225 6cyl mopar manual to build my motor with all the correct spec's etc. Thanks, Dana
#8 - dana - 12/13/2012 - 19:30
1984 1 barrell carburetor diagram
How can I get a diagram of a 1984 slant 6 cyl 1 barrell carburetor
#7 - Danny - 09/14/2012 - 13:51
Jay,
The idle mixture is adjusted using a vacuum gauge- hook it up to the brake vac. Line, tweak the idle screw till you get the highest reading and a steady idle with motor hot, correct timing and idle speed.The vacuum
cylinder might be the vacuum choke pull off-available in most parts stores.
#6 - Nevri Cebaf - 01/29/2012 - 12:41
1 barrel carb
How do i adjust the air fuel mixture and idle screws on my 1973 dodge dart swinger it has a 225 ci with 1 barrel carb please help its eating fuel bad plus that vacuum cylinder that goes between the carb and manifold is missing too where can i find one and what is the name of it, thank you, God bless, Jay :-( :-)
#5 - Jay - 10/21/2011 - 19:14
owner
just would like to know why there is a balist resister on the old slant six mine runs like crap with it , if i fasten the two wires together will i fry the points and anything else.
thanks
#4 - dave - 10/13/2011 - 20:13
The ignition timing for the 1973 Duster should be 10 degrees btdc, The idle speed is 650 rpm in neutral with the vacuum advance disconnected and plugged. After setting the timing, unplug the vacuum advance and attach it to the distributor.
#3 - Dan - 08/18/2011 - 20:44
I have 225 dodges 6 clc w a 280 450 l cam 2 b 30 over it run fine t i get on it thin it spoter a b 45 mpr t every thing
#2 - RICKEY WELCH - 04/02/2011 - 10:14
enginespecs
im helping a friend with his 1973 duster it has a slant six 225 in it, i am looking for tune up specs, like timing and what the idle should be.any help appreciated.
#1 - daniel dangelo - 03/26/2011 - 13:12
want to know more
>-(while in st.louis mo. i had bought a 1975 dodge dart swinger and a plymouth 360 ci. motor. im trying to find out the true specs of the 1975 dodge dart swinger but nobody knows.... so pleez let me know what you no about it.... befor its too late...
#0 - Danial Carey - 02/14/2011 - 10:55
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;-) :-) :-D :-( :-o >-( B-) :oops: :-[] :-P

 

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Engine Specifications

1960 - 1962 with 1 Barrel Carb
Max Brake Horsepower - 145 @ 4000 rpm
Max Torque - 215 @ 2800 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.5
Firing Order - 153624

1963 with 1 Barrel Carb
Max Brake Horsepower - 145 @ 4000 rpm
Max Torque - 215 @ 2400 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.2
Firing Order - 153624

1964 - 1971 with 1 Barrel Carb
Max Brake Horsepower - 145 @ 4000 rpm
Max Torque - 215 @ 2400 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.4
Firing Order - 153624

1972 with 1 Barrel Carb
Max Brake Horsepower - 110 @ 4000 rpm
Max Torque - 185 @ 2000 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.4
Firing Order - 153624

1973 with 1 Barrel Carb
Max Brake Horsepower - 105 @ 4000 rpm
Max Torque - 185 @ 1600 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.4
Firing Order - 153624

1974 with 1 Barrel Carb
Max Brake Horsepower - 105 @ 3600 rpm
Max Torque - 180 @ 1600 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.4
Firing Order - 153624

1975 with 1 Barrel Carb
Max Brake Horsepower - 95 @ 3600 rpm
Max Torque - 170 @ 1600 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.4
Firing Order - 153624

1976 with 1 Barrel Carb
Max Brake Horsepower - 100 @ 3600 rpm
Max Torque - 170 @ 1600 rpm
Stroke - 4.125
Bore - 3.40
Compression - 8.4
Firing Order - 153624