So i'm fairly new to working on cars in general and i'm ready to change the valve cover gaskets on my 425.. (Car has 59k orig miles) the job should be straight-forward as i have every tool needed but i'm a little confused ..

I researched and found 2 different thicknesses of gaskets:

Valve Cover Gaskets -- VS13403R -- 3/32" thick rubber
Valve Cover Gaskets -- VS50359R -- 11/64" thick rubber

I went and bought both because i wasn't sure and i can always just return the other set.

Which one do you guys recommend me using??

Thanks

 

With aftermarket valve covers, sometimes you need the thicker ones as the lip of the valve cover prevents them from tightening and leads to a leak.

 

Oh ok i didn't know that. If it were my cutlass i was doing i would have got the best gaskets possible. This is my 66 Delta i'm working with. Trying to keep it as bone stock as possible. So i guess i'll opt for the smaller gaskets.