My car has been on blocks for 5 years. Last time the motor was in it
steady blue smoke came out the tailpipes. Engine was rebuilt has only
10k miles on it. Was told could be bad or cracked valve seals, rings,
bronze valve guides worn out. Motor is out of the car. What is the
best way to tell what needs to be replaced? Iron Heads have machined
teflon seals. block was bored .030 with forged pistons.