I have a set of each. The 492s are NOS and angle plugged $650.00. The 461x heads are good virgin 194 heads. No guide replacement or cracked bolt bosses and don't appear to have had a valve job $1000.00 The 041s are stock with no work done $350.00. All heads are bare and freight is not included.
Dave Lockridge
dclockridge@gmail.com