07-23-2014, 04:37 PM
TinStar Wrote:I'm not actually certain you can even buy a Dodge full size truck that doesn't have a hemi anymore...
That's because they now call things Hemi's that aren't really Hemi's anymore.
To run a real hemispher block/head you need a large engine block they don't make anymore. The 426 was the perfect fit that gave the hemispher shape the perfect compression ratio that took advantage of the crossflow inside the hemisphere shaped head.
The problem with the Hemi is it really is meant for pure power in bulk and not condusive to 15mpg or higher without adding multiple spark plugs per combution chamber. Basically a Hemi isn't humming unless ran at high RPM's.
Now days the chambers are V shaped and are no longer capable of creating that kind of HP. It is too costly and people don't want 5 MPG cars anymore.
Now it is just a cool thing to call something since Chrysler owns the "Hemi" name.
Alpha Romeo I think is the last company that actually makes a real Hemi engine.