Valve cover questions

[mightyatom]

I have a small hole in one of the valve covers so I am going to replace them. I bought some chrome replacements (Spectre) which match the originals. But I have some questions

http://www.kragen.com/ProductDetail....e=1284&PTSet=A

1. in the shop manual the oil cap and flame arrestor are on the passenger side head, the PCV valve on the drivers side. But on mine they are the opposite. Does this matter ?
2. the grommet set I bought has 3/4" i.d. for PCV valve and 1" i.d. for the flame arrestor. But on my car both PCV and flame arrestor have 3/4 o.d. I have no reference to compare against so just wanted to check the flame arrestors came in 3/4" o.d. or whether it should be 1" o.d. ?
3. is the flame arrestor (from shop manual) known by a different name as I have not turned up anything that look the same on the internet ?

Thanks

[mightyatom]

bump - hopefully it wasn't a stupid question

[michael bustamante]

when I used my edelbrock valve covers and edelbrock breather, the breather would not fit in the hole because of the grommet. turns out the i/d on both holes was a 3/4" and the breather needed a 1" hole with grommet. I ended up just using a pcv and it works way better now anyways.
it seems most aftermarkets will only have one size hole for both v covers, and no I dont believe it matters what side
Also. . . and I think the guys on here will agree, when it comes to these trucks there is no dumb question, we all learn from questions like these

[hayhauler71]

As long as you have a pcv valve in one side and a breather in the other your good. Lots of stores have different size grommets and breathers to choose from to suit your needs.