GM used southern yellow pine (not PT) and finished it with a mixture of linseed oil and lamp black. However, I do not know the process and yes, some were painted the body color.

Last edited by Phak1; 10/02/2022 12:43 PM.

Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
Project Journals
Stovebolt Gallery Forum