im putting pac 1518's on 799/243 heads. i bought the springs from a member and it was the whole kit which when i got them had springs, seats, seals, locks. now the question is.. the stock seats are pressed in right? do i have to change them? the ID of the 1518's are bigger then the stock springs so if i dont add any seat and use the stock one the spring has a lot of movement. if anyone can help me id appreciate it. got the motor all torn down doing a cam swap

 

I thought they were pressed but they aren't... Pulled the stock ones off put the pac one on but the seals I have fit on there loose... I'll do some searching but if anyone could shed some light I would appreciate it

 

The seals you are installing are used? That may be part of the issue if they are.

 

got it all figured out now after doing some searching. thank ya for the help

 

http://www.yellowbullet.com/forum/sh...eehive+springs

Post #7 has the locators that I used. I ran into the same problem and everyone said to just drop them on the stock locators but I wasnt comfortable with the amount of movement that those springs have on the stock locator. I used the Ferrea SL1080 locator with a new set of umbrella type valve stem seals.