Hi everyone,

I finally was able to find some decent In-car video of a ACTC Dodge race car with a Slant Six in it.

Driver: Bocha Ciantini
Car: 1974 Dodge Polara RT
Engine: 3300cc Slant Six

1994 and 1993 Video turning 8100 / 8200 RPM

http://www.youtube.com/watch?v=6Q17Ra4K ... re=related
http://www.youtube.com/watch?v=fT6LsS-1 ... re=related

Hope you like it!!!

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Nice videos from an in-car perspective. Thanks!

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65 Dart station wagon slant 6 - now under construction
47 Dodge Custom 4 Door sedan
87 D100 Short Bed slant 6

Retired USAF 1966-1986
Retired US Postal Service 2004-2014

Wow, that is really cool footage of a great car and driver. Makes me miss the track and want more power!

Lou

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Home of Slant6-powered fun machines since 1988

Great video! Did you tell us how much horsepower these cars were making?

Rick

By 1994 the ACTC Slant Six was making no less that 330HP on premium unleaded pump gas and turning @ 8100 RPM.

The TOP performance for the ACTC Slant Six was in 2004 with 380HP and turning 8700RPM, I can't find a video of 2004 but with this two from 1993 /1994 I think that you get the idea of how this Slant were tricked and how HARD they were driven!!!!

Glad you like it!!!!

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Are these with that Argentina race head? Big ports...etc

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11.02 @ 120.56
http://www.youtube.com/watch?v=EAxRmoDgsdY
Chassis dyno
http://www.youtube.com/watch?v=wd6hFGzLJMc

For sure Shaker!!! That head was casted specifically for this engines (ACTC Slant Race Engines). Many other items were specifically produced for the Slant Race Engine and only, at that time, available to the ACTC Racers/Engine Builders.

I have find out more info about those heads and the casting didn't have the combustion chamber, plug hole, seats and deck casted in. At that time you got a new head with only a small hole as a guide/reference for the Valve guides and plug hole an the main surface was all flat.

Also the runners came very small. So this heads got a LOT of work to even make them usable.

Now that I'm thinking I should have post this along with the "ACTC Slant Race Head" thread ...

Can anyone move it?

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Martin, my son and I enjoyed the videos! Thank you. Have you done any more detective work on the producer/foundry for the heads? Thanks again, Wayne.

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66 Lil' Red Piggie Valiant (Mater Crusher) - Thanks Zilla!!!!! 72 Demon (Number 1 Son's)

Ooh, that was nice! Thank you, Polara1974. I'll put the sound on a tape and listen to it in my car whenever I'm in stop-an-go traffic, blasting away with open windows! Maybe my own slant get envious and start behaving better...

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Aspenized

^^^

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<img src="http://farm4.static.flickr.com/3173/2992308402_5481afb26e_t.jpg">

How did they handle oiling and the valvetrain at those RPMs?

God, I want one of these motors.....

Another "In Car" Videao of an ACTC Dodge Race car equiped with Slant Six.

Year 1989
Circuit: "Juan Manual Fangio" Balcarce City
Driver: Antonio "Tony" Aventin (btw he was the first man to win an ACTC Championship with a Dodge Slant Six Car in 1980)

http://www.youtube.com/watch?v=vphXQ5sI ... re=related

Regards, Martin

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

So By my calculations 3300cc + 201.3 Cubic inches. Were these engines big bored 170's?? Maybe stroked 170's?

Thanks,

Greg

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http://www.youtube.com/hyperpack

Uhmmm...
A .030 over bore (3.430) with a 198 crank throw (3.640) gets you 201 CID.
Basically a .030 over 198... and that explains the RPMs
DD

Actually this engines used the 170 crankshaft modified, with the 225 "906" Engine Block with a bore between 89,5mm to 91,5 depending on the year.
The rods were between 189/192mm center to center distance, CR was set at 9:1, the carburator was a Weber Dino 40-40mm, runing on pump fuel.
With that the acieve at the last year of the Slant Six runing in ACTC, 8700RPM redline with 360/370HP.

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)