What is the larger oil filter for a small block? Auto store says discontinued.

[Wakko]

I went to the auto store to get a filter for my 318.  The old Purolator filter was P20081 if I remember right, but now they're all referencing the short filter.  I went to two stores with negative results and ended up putting on a Mopar filter from WalMart.   What am I missin' here?   

[71charger_fan]

Purolator online (pureoil.com) shows availability of 20081 limited to stock on hand. Try PL30001 or L30001, that's what Purolator specs for the older big blocks, should be a long filter. Plus it's the one Purolator cross-references with Fram PH8A.

[Plumcrazy]

  I went to two stores with negative results and ended up putting on a Mopar filter from WalMart. 

What color was the Mopar filter?