Manya,

Unless they've been replaced recently, I'd do the valve stem seals and the cam oilers. Both are rather inexpensive parts and pretty easy to install, especially once you already have the heads off.

BTW, I'm assuming that you're going to do the timing chain guides and tensioner as part of that project. Again, once you're that far into the engine, they're pretty easy.

jlc

__________________
Jeff

'87 560SEL 267K (177K on motor) Blue/Blue
'98 Buick LeSebre 60K (wife's car)
'56 Imperial Sedan 124K
Past Cars:
'67 Dodge Monaco 130K (Sold)
'87 Chrysler 5th Ave 245K and going strong (sold)
'73 Plymouth Satillite 175K (sold)
'96 Chrysler LHS 80K (totaled)