Unlike a true "hemi," the Gen-III has quench pads on the side to aid squish and help lower the NOX emissions, while dual plugs on a waste-spark ignition reduce the remaining NOX to EPA-approved ...

The Chrysler HEMI is one of the most well-known, celebrated, and versatile engine series to come out of Detroit. Following WWII, Chrysler revived the hemispherical combustion chamber engine for ...

However, some builders create 572 Hemi's explicitly for boost, using stronger forged components, a lower compression ratio, ...

The street Hemi was toned down with a lower compression ratio (10.25:1, compared to the race engine’s 12.5:1), replacement camshaft, milder intake and exhaust manifolds, and possibly more.

The Tremec TR-6060 gearbox remained for lower Hemi Challenger trims; the upper Redeye trims never offered the six-speed. Explaining the matter at the end of 2021, the automaker said it needed to ...

The new Hemi, referred to as the Gen III, has been around since 2003, and as more engines become available at lower prices, more guys are considering this swap. As more people do the swap ...

The other reason you probably won't see a Hemi V8 under the hood of the new Charger is a far more practical one: it simply will not fit. This might not be too much of a shock to you, but the Hemi ...

However, the original 1964 all-new 426 Hemi was produced by Chrysler for use in NASCAR and drag racing, and appeared on the tracks in the 1964 Plymouth and Dodge lines. Richard Petty won the ...

Another day, another Hemi rumor. Hot on the heels of yesterday’s report that Hemi production is slated to restart later this year, MoparInsiders is now claiming that we could see the V8 return ...