Head Bolt Anti-seize
In the engine maintenance manual (9.15 Head Bolt Tension Check), it says to use copper anti-seize on the head bolts. In the lubricant section (6.9 Sealants and Compounds) it references the head screws when describing the Loctite Nickel Anti-Seize.
Is the correct compound nickel or copper? If cooper, what is the recommended compound?
Loctite C5-A Copper-Based Anti-Seize is recommended.