Why is the 426 Hemi good?
A hemispherical cylinder head (“hemi-head”) simply allows an engine to make more power. It has an efficient combustion chamber with an excellent surface-to-volume ratio, with minimal heat loss to the head, and allows for two larger valves.
Why do Hemi engines tick?
Low quality fuel can cause the hemi tick. Fuels that contain high amounts of ethanol or that are low octane may not properly lubricate the fuel injectors and can lead to a slight tapping or ticking noise. Low-octane gas has also been known to cause an ignition knock in high-performance engines.
Do Hemi engines use more gas?
Dodge RAMs with HEMI engines do not get the best gas mileage. … You may be able to increase gas mileage by three or four gallons which can add up to a lot of money in the long run. A simple change in driving habits and routine maintenance can make a big difference in your gas mileage.
Did Ram fix the HEMI tick?
Short answer, no, RAM didn’t fix the tick as far as I have read. Owner options like what has been written in other threads and a bit above abounds but I believe it’s still there. Sure are a bazillion posts/articles about it online.
How many miles will a HEMI 5.7 last?
5.7 Hemi engines are good for 250-300 000 miles and more if properly cared for and regular maintenance is carried out. Early models suffered from valve seat issues which was rectified after 2008. It’s not uncommon to find high mileage 5.7 Hemi trucks running around today.
What is high mileage for a 5.7 Hemi?
The 5.7 Hemi engine can last up to 300,000 miles, but only if the owner has taken proper care of the engine throughout the years.