Moroso 23705: Billet aluminum oil cooler/filter sandwich adapter for Big Block Chevy Gen V, Gen VI | -10 AN female ports | 13/16 in.-12 Thread | Lowers filter 1-1/2 in - JEGS
Amazon.com: GlowShift Oil Filter Sandwich Adapter Compatible with Chevrolet Small Block 305/350-13/16-16 Thread - Install up to (4) 1/8-27 NPT Oil Pressure & Temperature Sensors - Includes O-Ring & Port Plugs : Automotive
Euro Sport Oil Cooler Sandwich Adapter Plate – Euro Sport Accessories