Slant Six ET Potential? LONG !!

My 72 slant six duster ran 18.10 last September in the 1/4 bone stock. Has the 7 1/4 rear in it, crappy tires, two barrel "super six" setup, points ignition, restrictive wal mart air filter insidd the factory pie pan, and the three speed manual tranny. I could have easily got in the 17s if I would have been able to drive the car a little more, and having an automatic would have helped the ET too. I would think that a mechanical solid cam, pistons, shorty headers from clifford, and a hyper-pack intake/four barrel combo would help, but I am not sure about 14s. I raced against a guy with all that done and I was within a second of him... have time slip to prove. I guess gears would help quite a bit though...
The slant six's heads are very restrictive with not much room for improvement (one of many reasons why I went with a 340), unless you use forced injection. There are some wicked forced injection leaning towers of power out there runnin with the V8s though!!

The main crutch in racing this engine is the manifold arrangement with the exhaust manifold heat control valve. I have tried gutting them out and using block plates and a phenolic spacer on the carb, but the stock manifolds just get too hot.

The headers and aluminum intake will get you where you want to go.

That car is pretty light, should be around 2900#
so I believe you should see 17s with a header, gear
and carb

Do some checking on this link Slantsix.org

I'm a fan of the 225's. Had one in high school years ago and simply could not kill that engine despite the punishment I'd had put it through.


Here's a link to a picture of mine around 1980! Wow, that's a long time ago... The BURNOUT!

While browsing through I see slant six, I dont think I am interested until I notice the last post was from Bill Hartman. I KNEW there would be a interesting photo and again he did not let me down. Interesting post and another nice photo.

Stock long block, 390 Holley, Offy intake, Dutra Duals cast exhaust manifolds, and a 100 shot.

14:80@90

Theres a local guy here that ran a /6 years ago with his dad at the flats, it was turboed or supercharged. I went to his place to help him with RB in an A body. He said he had everything from the build and nothing to do with it anymore, he asked me if i knew anyone that would be interested in it. I will try to contact him and see if he still has all the stuff for it...They set some records with the car. He told me they took the car out, ran it and injected water in it for something and it ran strong, broke the record, went out a couple months later and the car wouldnt turn over, everything was rusted up. They ended up going back home..Phill

At Norwalk, elevation around 800ft

Stock super six Aspen in my sig pic: low 19s.
'72 Swinger Special, stock with PS belt removed: high 17's
'80 Mirada, very tired 1bbl six: 20.40s

I have three '68 slant six Valiants, a V100, a V200 and a Signet.

The V200 (pictured) is stock except for electonic ign and a 2.25" exhaust pipe. It ran a 18.38 allowing it shift itself.



The Signet has had the heater and wipers removed, fiberglass buckets added, to lighten it up. The original untouched motor has electronic ign, Super Six BBD and a MP header with 3" exh added. It went 17.44 shifting at 4400rpm.

The V100 has yet to make a pass.

I'm building a Slant 6 with a blower. Today I dropped in a mock up engine block and trans. I'll start on making the motor mounts next week.

Thanks for all the input. We'll see how it goes in a few weeks!!
Diego, if you like that Dart, contact Mark(azmopar) he has a few!! I think you bought your Duster fenders from him last year.