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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Stewart G Griffin on September 05, 2016, 07:01:02 pm

Title: PCV valve size (diameter)?
Post by: Stewart G Griffin on September 05, 2016, 07:01:02 pm

Would anyone happen to know the diameter of a stock SBC pcv valve?    i need a push in type breather, but i'm not sure what size to get.

This is a stock, run-of the-mill, SBC pcv valve size hole.

Title: Re: PCV valve size (diameter)?
Post by: Irish_Alley on September 05, 2016, 07:34:49 pm

dont know why but 1.25 is sticking in my head.

Title: Re: PCV valve size (diameter)?
Post by: Stewart G Griffin on September 05, 2016, 07:56:53 pm

Yeah, 1.20"/1.25" sounds about right but just trying to make absolutely sure.