Well , still got snow up to my ass, but temps are up enough to get my 51 Cambridge awake again. What im looking for is the largest oil filter i can get. Part numbers makes etc. Also plug size and gap recommendations both for 80 diplomat sl6. Thanks

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51 Plymouth Cambridge with / 6

Oil Filter Wix 51515 should be plenty enough for you...

Plugs: NGK-UR-5

Points or Stock EI :.035 gap...

Running performance coil/wires/GM HEi Module or Mopar Orange Box: gap at .040 - .045

Thanks, meant to mention i use wix

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51 Plymouth Cambridge with / 6

Or, go with the WIX 51806........................I just did an oil change on the Valiant today! and used this filter.

He needs to determine of he has an oil pump standpipe or the threaded nub, 51515 if a standpipe or 51806 if no standpipe...

51773 is the bigger filter, 2qts. Comes all the way up to the head and then a bit. Watch your fluid level with this guy.

I've come to dislike the pump with standpipe built in. I'd much rather use no standpipe on the pump and have a 51806 - makes oil changes less messy.

Ok, i will pull old filter this weekend

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51 Plymouth Cambridge with / 6

I would dry test this guy, some of the oil pump castings are a little off and although some of the block castings have a little "dip" near the head to clear the taller filter, if the casting is off a little you can not be able to get a good grip on it to get it off... on the melling pumps I've had a few that were a little tight with the 51515...OEM casting-no problem.

Well another week delay. snowing and blowing. Anyhow, i can see a long napaonline filter on it. The stock short filter is 51068

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51 Plymouth Cambridge with / 6