These are the oil squirters found on all Non Turbo VG30 engines. These are used to cool down the piston by squirting oil on the center of the underside of the piston. On stock Twin Turbo cast pistons the oil squirters actually insert into a hole in the piston forcing oil inside the casting.
When upgrading to forged pistons such as Wiseco's, these Non Turbo oil squirters are recommended since the Twin Turbo oil squirters are too long and if left unmodified they can come in contact with the piston causing damage to the squirter or piston or both causing catastrophic engine failure.
Also required when installing these is the oil squirter gasket available as an option below. There are 3 of each the squirter and gasket per engine.
- 1990-1996 Nissan 300ZX (Z32)