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-   -   Slant Six Brief History! (https://moparforums.com/forums/f81/slant-six-brief-history-10573/)

DartcustomcrusieR Sep 7, 2011 03:24 PM

Slant Six Brief History!
 
Ladies and gents where i live right now its a rainy day so i thought how about a rainy day story/history lesson! on my favorite engine the SLANT SIX!:hello:

The slant six engine was introduced in 1960 in two versions - 101 hp, 170 cu. in. and a 145 hp,
225 cu. in. From this modest beginning, the slant six built its reputation for performance and
reliability. The 148 hp, 170 cu. in. Hyper Pak introduced in the 1960 Valiant was the next step
and the one that was to prove the new engine worthy of any performance challenge.

In 1960 with the introduction of the new compact cars by all the American automobile
manufacturers, NASCAR sanctioned a special race exclusively for the little 6 cylinder powered
compact cars. The race was held at Daytona and had seven slant six Valiants entered. When the
race ended, not only had all seven HyperPaks finished proving their reliability and durability,
but

they won the first seven places! This type of performance speaks for itself.

The Hyper-Pak option was carried over into 1961 and also made available on the 225; but, 1962
was the beginning of the "big-inch" factory hot rod and the Hemi was coming! The little slant six
got lost in the eight-barrel carburetors. The slant six now had to settle for the more mundane job
of economical and dependable transportation.

The performance history of the slant six had the usual highlights: four-barrel intake system, high
compression pistons, long duration mechanical camshafts, aluminum blocks and one of the first
performance four-speed manual transmissions with an in-line six in 1965. But, that was in the
60's and the emphasis in the 70's was fuel economy.

Again, the slant six was equal to the task. In1975 the Feather Duster and Dart Light were introduced to demonstrate the economy of the slantsix. This package had a four-speed overdrive and many lightweight body pieces. The slant six responded with an EPA highway number of 36 mpg. This is the best fuel economy turned in byan American 6 cylinder compact.

At the end of the '69 production year the 170 slant six was dropped and in 1970 a new 198 cu. in.
version was introduced to replace it. At the end of 1974 his version too was dropped and only the
225 survived until 1983 in cars and 1987 in trucks and finally was discontinued in 1991 after its stint as an agricultural engine and boat motor.

The three engines share a common bore of 3.4". The 170 engine has a 3.125" stroke; the 198
engine has a 3.64" stroke; and the 225 has the longest stroke at 4.12". Major internal differences
between the engines include crankshafts, rods, and camshafts although the camshafts can be
interchanged between them.

mikerp76 Sep 7, 2011 09:15 PM

that is very interesting.

Coronet 500 Sep 8, 2011 02:18 PM

here is something you might like: http://www.allpar.com/corporate/bios...interview.html

Mr.Duster Sep 8, 2011 03:17 PM

very cool

DartcustomcrusieR Sep 8, 2011 05:11 PM

Quote:

Originally Posted by mikerp76 (Post 74493)
that is very interesting.


Thanks!

DartcustomcrusieR Sep 8, 2011 05:19 PM

Quote:

Originally Posted by Coronet 500 (Post 74520)


That was an AWESOME freekn interview thank you for that. i read the whole thing and was grinning to myself the whole time, it was like i was there havn beers with the guy, thanks!

DartcustomcrusieR Sep 8, 2011 05:22 PM

Quote:

Originally Posted by Mr.Duster (Post 74523)
very cool


Thank you just trying to get everyone SLANT SICKNESS! lol

mr340 Sep 8, 2011 05:31 PM

Quote:

Originally Posted by DartcustomcrusieR (Post 74528)
Thank you just trying to get everyone SLANT SICKNESS! lol

Spent a LOT of years down that road, then I found a 340....: hail :

DartcustomcrusieR Sep 8, 2011 05:41 PM

Quote:

Originally Posted by mr340 (Post 74529)
Spent a LOT of years down that road, then I found a 340....: hail :

I have all kinds of V8s my fav is fords modular DOHC 281 for sure, but then i found the /6...: hail : i love this engine! everything about it is kool, just look at it!

scotts74birds Sep 8, 2011 06:35 PM

Dont know if you know this, but they used mopar engines in Sherman tanks and Air-Raid sirens too!

mikerp76 Sep 8, 2011 08:46 PM

i just got my car with a slant 6 and if my tach is correct it turns about 2100 rpms at 70 mph. plenty of power from it that is for sure.

TVLynn Sep 9, 2011 05:01 PM

They briefly toyed with an aluminum Block version, cast iron won out.. Very rare today

DartcustomcrusieR Sep 9, 2011 05:25 PM

Thats kool info from all. it would be kool to get ahold of an aluminum block and do a build. im actually am looking for a pulled 225 to do a full build to educate myself even further and create somthing different, it would be kool to get a 200whp Lightened up valiant with a four speed as a lil road warrior or a light track car

scotts74birds Sep 10, 2011 06:52 PM

Hemi Air Raid Siren http://www.youtube.com/watch?v=JEfYnByuTQ0

DartcustomcrusieR Sep 11, 2011 09:46 AM

Quote:

Originally Posted by scotts74birds (Post 74638)


that was kool. fired right up!

rocko Sep 13, 2011 05:14 PM

Slant sixes r so unique and easy to work on.love them

DartcustomcrusieR Sep 13, 2011 05:51 PM

Quote:

Originally Posted by rocko (Post 74810)
Slant sixes r so unique and easy to work on.love them

agreed! best engine ever! so many ways to be unique with this engine! I was thinkin about doin a Slant six Targa racer that would be TITS!:hello: or maybe just a track car like an old NASCAR replica as a long term project

DartcustomcrusieR Sep 13, 2011 06:19 PM

1 Attachment(s)
check out this NASCAR special santion race winner Marvin Panch's Daytona Valiant its sweet.

mikerp76 Sep 13, 2011 07:35 PM

i was out delivering parts at work to day and one of our customers had a bmw in his shop that had a slant 6. plus some of the hondas us a slant 4. so i guess it is a very popular design still.

scotts74birds Sep 16, 2011 06:08 PM

I don't know for sure, but I think the Aussies had a "hemi-headed slant-six". http://en.wikipedia.org/wiki/Chrysler_Hemi-6_Engine

Coronet 500 Sep 16, 2011 07:10 PM

Here is something you might like: http://www.theturboforums.com/smf/in...opic=149475.25

DartcustomcrusieR Sep 17, 2011 02:12 PM

thanks for those links, too bad that six didnt do a run here woulda liked to get my hands on it!

Turbo/6 call the doctor cause that shite was SICK!

Did me a little tune up and got rid of a stuttering idle yesterday, but i did it in the wrong order

plugs distributor vac. hoses. if i would have did the Vac hoses first i would have found that was the problem. lesson learned i quess.

gearheadmike Sep 17, 2011 07:00 PM

theres some guys a few miles from me that run demo derbys every year and in there smaller rwd cars all they run are the /6's lol i like looks of them with header/crome valve cover and a 4bbl lol

MoparGal Oct 10, 2011 08:24 PM

Help
 
I need you slant six enthusiasts to help me. I have serious problem about my engine, and it has stumped everyone else. Please someone help me...
https://moparforums.com/forums/f4/mo...824/#post76107

mopardrt Oct 10, 2011 09:50 PM

Quote:

Originally Posted by MoparGal (Post 76108)
I need you slant six enthusiasts to help me. I have serious problem about my engine, and it has stumped everyone else. Please someone help me...
https://moparforums.com/forums/f4/mo...824/#post76107


heres a tip rip it out and find a 340 or 360 :pistol:

89ram150 Oct 14, 2011 05:35 AM

They're cool looking no doubt. Sometimes I wish I had one instead of my 318 for gas mileage's sake.

DartcustomcrusieR Oct 14, 2011 11:31 AM

Quote:

Originally Posted by 89ram150 (Post 76289)
They're cool looking no doubt. Sometimes I wish I had one instead of my 318 for gas mileage's sake.

Word dude, i'm doin 20+ mpg its not too bad.

89ram150 Oct 14, 2011 12:00 PM

Quote:

Originally Posted by DartcustomcrusieR (Post 76305)
Word dude, i'm doin 20+ mpg its not too bad.

A guy I worked with years ago had a mid 80's D150 step side with a slant and a 4 speed. That would have been a cool truck to have.

DartcustomcrusieR Oct 14, 2011 12:56 PM

Quote:

Originally Posted by 89ram150 (Post 76307)
A guy I worked with years ago had a mid 80's D150 step side with a slant and a 4 speed. That would have been a cool truck to have.


I'm doin a build on a slant 6 to put into something of my choice later down the road, and it will be a 4 speed prolly an a883

5857glendon Jan 17, 2016 11:45 AM

Feather Duster Tag and VIN
 
2 Attachment(s)
...just curious but does anyone know how many Feather Dusters and Dart Lites were made? I regret scrapping mine years ago BUT I did keep the original fender tag and VIN from it.....


http://www.stockmopar.com/mopar-fend...&Submit=Decode


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