MP valve covers knock out machined for pcv grommet (Chevy style)
I was going to use two breathers and a pcv. Knocked it out and quickly found out there isn’t a grommet made that will fit. Brought it to my local engine shop and he knocked it outside of the park.
He machined both the top and the bottom so a standard grommet would fit. It's roughly 1/2" deep and a little over 1" wide to start with. (after the knock out is knocked out)
I was going to use two breathers and a pcv. Knocked it out and quickly found out there isn’t a grommet made that will fit. Brought it to my local engine shop and he knocked it outside of the park.
He machined both the top and the bottom so a standard grommet would fit. It's roughly 1/2" deep and a little over 1" wide to start with. (after the knock out is knocked out)
