Two perfect looking resin breathers to mount on your valve covers.
You can't get more realistic than these, due to Mark Johnson's craftsmanship.
There's normally one or two on each valve cover.
Three sizes are available - Short, Medium and Tall
Overall heights are:
Short = .15"
Medium = .19"
Tall = .31"
Here's a photo of a real breather
Here, Garlits has one tall breather per side.
Here's an engine with two breathers per side.
One pair of breathers by Mark Johnson, 1/16 scale.