getting to the point im ready to install my vally cover. iv noticed on the block (its a 5.3 iron truck block) it has a o ring like seal on each stand off. my gasket kit didnt come with new ones and the ones on the motor looks wore. i tried searching it and could only find the seals that go into the valley cover it self. do they make new ones? if so whats the part number?

 

anybody?

 

Are you talking about the gasket that go Under the cover (the knock sensor screws through them)?... I just got the knock sensor seals/gaskets and the lifter valley cover gasket in Fel Pro part# MS92465, However this is for my '00 ls1... I'm not sure what is interchangeable tho. Rockauto carries the set for around $15