Slant Six Cylinder Head and the Revised Combustion Chamber by Doug Dutra.
http://slantsix.org/articles/combustion-chamber/sl6-combustion-chamber.htm
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| New article by Doug Dutra *PIC* https://www.slantsix.org/forum/viewtopic.php?t=2479 |
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| Author: | Chuck Rivers [ Sat Jul 28, 2001 2:30 pm ] |
| Post subject: | New article by Doug Dutra *PIC* |
Slant Six Cylinder Head and the Revised Combustion Chamber by Doug Dutra. http://slantsix.org/articles/combustion-chamber/sl6-combustion-chamber.htm webmaster@omnipages.com |
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| Author: | Tim [ Sat Jul 28, 2001 6:36 pm ] |
| Post subject: | Re: New article by Doug Dutra |
The new GM Vortec 4200 has a similar bore and stroke to the 225 slant six ~ 3.66 x 4.01" - both are undersquare stroker inline sixes. But, the new head design makes a big difference, 270 horsepower stock ( 275 ft pounds at 3,600 RPM with most of that available at 1,200 RPM ). I believe it comes with a 7 quart oil capacity, it's designed to be a work horse for trucks and SUVs. How does GM improve air flow to help top end, but get that kind of low-end torque from a motor about the same size as the slant six ? I'd sure like to see a slant head like the new Vortec 
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: Slant Six Cylinder Head and the Revised : Combustion Chamber by Doug Dutra. |
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