Although hemispherical heads offer better strain distribution, shallower heads are often used instead. 3 Recognized in the industry as “dished” heads, they are an effective compromise between strain ...

While the Max Wedge's cylinder heads were competitive, there are a couple of reasons why Mopar reverted back to hemispherical heads for the 426 HEMI. The 426 Max Wedge's main downfall was cylinder ...

Although hemispherical head designs are common to aircraft engines of the era, this is Chrysler’s first application. 1951: In response to the ’49 OHV V-8s from GM, Chrysler introduces the 180 ...

While the Max Wedge's cylinder heads were competitive, there are a couple of reasons why Mopar reverted back to hemispherical heads for the 426 HEMI. The 426 Max Wedge's main downfall was cylinder ...