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  1. G

    855 Cummins 290

    Hi guys have a 855 that I was putting in my truck had oily residue in the last head's two exhaust ports. Need to know how to go about checking what is causing this and what to fix? Any help would be greatly appreciated!!! Thanks much
  2. G

    how to identify 855 cummins heads

    Does anyone know how to identify cummins 855 heads need to know where head numbers are located to replace my cracked ones ? Thanks
  3. G

    855 cummins engine smoking

    Hi really need some help with my cummins engine I have 1978 855 NTC that is smoking badly, the truck overheated and was blowing heavy white smoke, so I took apart the top of the engine and had the heads checked. The three head gaskets looked ok not blown through. sent heads out supposedly...
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