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2012 Dodge Ram 1500 HEMI Engine Knock in the U.S.
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Ok. He's right. Most all engines make noise of some sort more so on cold start. My hemi makes less noise then the 6.2 in my corvette and less then the 6.0 in my previous corvette. My 4.6 in my 2010 Merc. is quieter then the hemi and 6.2 BUT you can hear the timing chain(I think) for a little bit, worse the colder it is. My 1998 318 Magnum was pretty quiet. (old caste iron block and heads)Now if you want to listen to noises,pull it up next to a wall hot or do a cold start and listen intently. You'll hear a lot going on. I also think what these engine blocks/heads are made of and thickness has some to do with noise transfer. (318 Magnum was quietest of the bunch)
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Because most folks don't have a clue what a KNOCK actually sounds like. And if the engine is actually knocking, it usually tosses a part through the pan in a short period of time.
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#10
I'd take that bet, because engines do not just knock when they are cold. If it is knocking, its doing it full time. Knock is caused by failing parts that are out of spec - worn rod bearings, loose rod bolts or bad wrist pins. A cold noise is not a knock - it is lifter noise, or sometimes just detonation. I'm sure you've got 20+ years of engine building to back up your thoughts, so lets hear them