PCV VALVE PCM 90° - Original PCM R035015

3/8" Outside Diameter Nipple X 3/4" Outside Diameter Barrel
Most GM 350 - 454 and Ford 302 - 351

Not for PCM EFI GT40 - Use Part # 50-5001

Replace when it does not rattle when you shake it.

This indicates a poor crank case ventilation

Other indicators are: Excess oil or rough idle situations