I was putting new valve seals in a early Vega head (71-75). The intake seals popped down in place nicely and hold tight, but the exhaust seals are really loose. By really loose, they slide up and down with the valve. I have a few sets from different vendors, so I opened two others and those also fit really loose.
I have a few other heads so I tried them on the other heads and they only firmly fit on one of them. The only head it fit firmly on is a 71-75 head, They were loose on a 76 head and two other 71-75 heads.
The intake seals fit firmly on the exhaust side.
Anybody have experience with these. I am thinking that because of this oil is going to get under them and cause excessive oil burning. Should I use intake seals on the exhaust side? The intake seals are blue and the exhaust ones are black and I got information before that they are different because of the temperature, so I don't know if this would cause a problem.
Thanks,
Ken