Painting Heads
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Painting Heads
I always paint the exterior surfaces of engine parts.
You don't want them to rust. If your doing a valve job and have the heads off and clean alredy it only takes a few minutes. Screw some old plugs in to keep the plus seats and threads from being painted and also start bolts in front and rear and exhaust manifold bolt holes for the same reason. I have a pair of old valve covers that I set on the heads before painting or you could use some masking tape and newspaper to prevent the valve spring area from being painted.
No real harm will come to the heads from not painting them but they will rust. Some rust could be knocked loose while changing plugs and get into the cylinders so preventing that would be enough reason to me for taking the time to paint them.
Bob
'66 7 Litre Convertible, top loader, 3.25 Traction-lock, 427 Sidewinder Intake, 780 Holley, Windage tray, SCJ Exhaust manifolds, H-pipe, MSD, Line-lock, AM/FM/8-Track/CB
'88 F150 XLT Lariat, 302, 5 speed, 3.08
'98 Mustang, 3.8, 5 speed
'99 Ranger, 3.0, 5 speed, 3.73 posi
You don't want them to rust. If your doing a valve job and have the heads off and clean alredy it only takes a few minutes. Screw some old plugs in to keep the plus seats and threads from being painted and also start bolts in front and rear and exhaust manifold bolt holes for the same reason. I have a pair of old valve covers that I set on the heads before painting or you could use some masking tape and newspaper to prevent the valve spring area from being painted.
No real harm will come to the heads from not painting them but they will rust. Some rust could be knocked loose while changing plugs and get into the cylinders so preventing that would be enough reason to me for taking the time to paint them.
Bob
'66 7 Litre Convertible, top loader, 3.25 Traction-lock, 427 Sidewinder Intake, 780 Holley, Windage tray, SCJ Exhaust manifolds, H-pipe, MSD, Line-lock, AM/FM/8-Track/CB
'88 F150 XLT Lariat, 302, 5 speed, 3.08
'98 Mustang, 3.8, 5 speed
'99 Ranger, 3.0, 5 speed, 3.73 posi
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