Hq firewall

[HK1837]

Firewalls were painted in the body plants and either left painted or painted over with slush black.

[hqhzvans]

Firewalls were painted in the body plants and either left painted or painted over with slush black.

So it would be difficult then to determine if your car was painted black from factory or down the track during a restoration unless an original survivor, was the black just the GMH black used on chassis etc

[AN5590]

Firewalls were painted in the body plants and either left painted or painted over with slush black.

My ute is Brisbane built 5/74, firewall is a satin black of sorts i.e. suspect what Bryon refers to as 'slush' black.