Should I run exhaust valve stem seals on a set of 32V heads being used only for the track?

 

Why would you want to leave them out?

 

Yes, you should. We sometimes leave them out on the air cooled RSR and Cup race engines to help lubricate the guides, but those guides are horizontal. The 928 guides are obviously vertical and you might be sucking up a bunch of oil down the guides on de-acceleration. This will make the engine have pre-ignition or worse when you come back onto the throttle.

 

Thanks Greg

 

Besides JV, they are SOOOO MUCH FUN to put on.