Noise from Chrysler 360 head u shaped hole?
Posted: Fri Jun 17, 2022 12:02 pm
You know those upside down “U” shaped hole in your Chrysler small block heads? (For some emissions control or cross over, I don’t know, but not used on our marine version engine).
I am getting engine noise from this as well as exhaust or hot air) just on one of the heads of my 360. This is a replacement long block with maybe 100 hours on it.
If I pack it wit a shop rag or aluminum foil, that’s enough to make it go away and sound like my other 360.
Engine otherwise runs great, oil pressure, water, temperature.
I’m thinking maybe a crack near the exhaust valve or something.
The noise however is very loud if not muffled.
Anyone know what this is?
Bud
I am getting engine noise from this as well as exhaust or hot air) just on one of the heads of my 360. This is a replacement long block with maybe 100 hours on it.
If I pack it wit a shop rag or aluminum foil, that’s enough to make it go away and sound like my other 360.
Engine otherwise runs great, oil pressure, water, temperature.
I’m thinking maybe a crack near the exhaust valve or something.
The noise however is very loud if not muffled.
Anyone know what this is?
Bud