How mine looked after 30k miles and 5 years of daily driver use, my first attempt at using POR-15 manifold paint about 24 years ago.
I did use Metal Prep after bead blasting them to clean and etch the bare metal before brushing on the paint. I didn’t bake them before running them on the engine. The manifolds were brand new.
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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/2.56
2002 WS6 Convertible LS1/4L60E/3.23
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