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455 Pre-oiling issue

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Old Nov 8, 2025 | 03:55 PM
  #1  
45573's Avatar
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Joined: Nov 2025
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Default 455 Pre-oiling issue

Hi All,
Just found your forum!
I am trying to pre-oil after installing a new timing cover/oil pump. I am getting oil to all lifter bores and a few rockers but not all. The ones that ARE oiling are on the left head.
TIA
John
 
Old Jan 21, 2026 | 05:38 PM
  #2  
hanky's Avatar
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Joined: Sep 2010
Posts: 1,230
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How did you make out with this problem ?

Realize it is a little,,,,,,,,,,,,,,,,,,,,late, but just checked and remembered those 455s were a powerhouse.,

Don't know if the new Buicks have the same ride quality as the older cars.
 
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