6.4 hemi engine noise normal?

Dusty said:

Since one of my sons just bought a 2014 with a 6.4, I'll ask him to listen to your audio and find out what he thinks. As far as I can tell it sounds just like his at 110,000 miles.

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33 gallon fuel tank, factory dual exhaust, 18” wheels. Build date: 03 June 2018. Now at: 065595 miles.

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White six four said:

It would be nice to hear a 6.4 with lt headers and see if it sounds the same.

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Wild one said:

My wife has a 6.4 with long tubes,but it's a Challenger,lol

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White six four said:

Nice! She races it too doesn't she?

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buckeyexx said:

Thanks guys so far for the responses. Maybe not much to be concerned with. I do on an occasion get the piston slap but it doesn’t concern me much after reading about it. I’m going to run red line 5w30 on my next oil change as suggested on other threads. This motor with the miles I have on it runs as good as new even with the noises it makes.

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buckeyexx said:

Yeah it’s definitely not up top. If I climb under the truck it sounds more around the bell housing or the down pipes off of the exhaust. I’m not convinced it’s a motor thing but I can’t pin point it either.

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64zebra said:

I got my 2015 2500 used with 60,000 miles. At 93,000 the noise started.

I was in the same position. Light knocking sound at first and couldn’t tell where it was coming from. It got worse over the next 2 months to the point it sounded like a diesel on startup and only slightly subsided when warmed up. Took it in and was given the dealer service bulletin from Chrysler referencing the incorrect wrist pin size issue. It was for 2014/2015 6.4 engines built between April and October in 2014. My warranty ran out 3,000 miles earlier or I could have got a free crate engine swap. Instead I got it rebuilt and had the MDS delete done. One cylinder was dinged up enough it had to be sleeved. Got more HP out of the deal and its running great.
I say all this to say…be careful with how you’re proceeding.

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buckeyexx said:

Not that I need it now but if you don’t mind, what did it cost you to rebuild it? I know it will differ from place to place but wonder about a round about. I don’t plan to get rid of this truck anytime soon and the way truck prices are I would just rebuild what I have when it’s time.

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