Take a rubber mallet and give a good whack to each valve on the cylinder to see if they are free. That head is probably going to have to come off. Hopefully the piston and cylinder wall isn't damaged.
Whacked them all and they all are free.
Borescope down the cylinder shows no damage...
Ordered new pushrods and have spare rockers from another motor.
Rotated the motor by hand and the rest of the rockers and distributor cap turn, so it’s srill all connected. I have a cloyes true double roller on there....
