Thanks, Scott, great to hear from you! The reason I ask is I've got a set of used big block valves on the shelf, that have been cleaned, re-faced, and the tips trued up. I've also got a pair of real good heads that are bare. Was just wondering if I could put those re-done used valves in the bare heads, after having the seats resurfaced. Sean Scott Powell wrote: > > Hey Sean, > > It's so the valve guides get matched to their individual wear patterns. > Of course, all this becomes moot if the valve guides are replaced as > well. ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.