Rocker Cover Dress-Up Kit for Nissan RB Engines Dimple Die but I run two of

but I run two of these pumps in parallel circulating water for solar pool heating and they develop about 70psi pressure

You're buying top quality direct from the manufacturer

The injector adaptors replace the flat

2-Bolt 

designed to replace the oil filter pedestal

Rocker Cover Dress-Up Kit for Nissan RB Engines Dimple Die but I run two ofBillet aluminium washer and bolt set for Nissan RB20, RB25 & RB26 engines. The set comes with 20 CNC machined washers in a selection of colours, 20 black plastic washers to prevent marking on the rocker covers, and high quality zinc plated fasteners to suit. Compatible with all variations of Nissan RB20DE, RB20DET, RB25DE, RB25DET, RB26DETT engines from Nissan Skyline vehicles.