All the talk about leaded vs unleaded fuels and hardened valve seats and
such got me wondering. My 40 1/2 ton has the original 216, but as I am
at least the 3rd owner, I have no idea (and neither does the guy that I
got it from) if the engine has ever been rebuilt, and if it has, if the
newer "hardened" valve seats were installed.
Is there any way to tell if this has been done? The truck was restored
around 20 years ago...........if the 216 was rebuilt at that time, would
it have been commonplace then to add hardened valve seats? Also, if I go
ahead and start adding a lead additive, will it hurt the engine if I do
have hardened valve seats?
Thanks for the help
Brad
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|