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the heads. the tops of the combustion chambers of a HEMI engine has a hemispherical shape whereas in a non-HEMI engine, they are flat.
for more info, read this: http://auto.howstuffworks.com/hemi1.htm
The rounded concave hollow of the cylinder header allows for larger valves to be used so the engine can breath easier and produce more power over a regular motor of the same displacement.
What else can I help you with?
What is diffrent between a 5.7L hemi diesel engine and a regular diesel engine or a petrol engine?
There isn't a 5.7L Hemi diesel.
What is the difference between a Chrysler 300 and Chrysler 300C?
The 'C' gets the Hemi engine.
What is the difference between a 5.7 magnum hemi and 5.7 hemi?
Nothing
What is the difference between a 5.7 hemi and a 5.7 hemi magnum?
Nothing
Is there a difference between a hemi 265 and a hemi 245?
The difference between a hemi 265 and a hemi 245 is the horsepower. The 265 has a 218 @ 4,800 gross horsepower while the 245 has 165 @ 4,400 gross horsepower.
What is the difference between a hemi and a hemi magnum?
If you're referring to the current Hemis, there is no difference, they're all one in the same
What is difference between semi and hemi?
semi is what you see on all highways. Big huge 18 wheelers. A hemi is an engine with hemispherical head's. Its often referred to in muscle cars, which have those engines. and newer hemi powered Chrysler vehicles.
How much would it cost to put a hemi on to your 2012 dodge challenger engine?
The Hemi IS an engine, you can't "put" a hemi on to another engine
What is hemi engine?
A hemi engine refers to one of the most popular high performance engine types.
What mods need done for a hemi to cummins conversions?
A hemi engine has a hemispherical combustion chamber. to convert it into a cummins you need a regular combustion chamber. Also in a diesel engine has no spark plugs. you would need a diesel conversion kit.
Who made the hemi engine?
Chrysler corporation made the hemi engine back in the 50's.
What is a hemi truck?
Hemi is an engine and it's made by dodge
