Head Oil Drain Fitting for Nissan RB
A head oil drain fitting is designed by Franklin Performance to help reduce excessive oil build-up in the cylinder head of Nissan RB twin cam series engines – a common problem on the drag strip, drift track and occasionally on the street.
This fitting helps drain the oil back to the sump instead of it building up in the head, where it often ends up forced out of tappet cover breathers and catch cans.
The head drain fitting features a compact, lightweight design. An 8AN O-ring port enables compact plumbing, and slotted holes allow multiple mounting options. On RB30 engines the fitting is positioned vertically, as there is ample gearbox clearance; on RB20, RB25 and RB26 engines it can be positioned at an angle to achieve the required clearance around the gearbox.
To fit the oil drain, the frost plug at the rear of the head is removed and two M6 holes are tapped into the rear of the head. The fitting is supplied with an 8AN O-Ring to 10AN adaptor.
Complete head oil drain kits with high quality hose and fittings are available in our other listings.
Suits:
- Nissan RB20DE / RB20DET
- Nissan RB25DE / RB25DET
- Nissan RB26DETT
- Nissan RB30DET
- Neo engines
