Quote:
Originally Posted by Cardiffrob
I'm not sure if this is of any interest but when I needed to fabricate a valve cover for a rare 1950s British engine I etched the design onto the ali with Ferric Chloride using a design that was printed onto self-adhesive plastic that is normally used for sign writing on the sides of small Vans and trucks.
If the top face of the covers is thick enough then you'd be able to etch out the design more akin to the original GTO shape.
Rob (Beginner)
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Rob: Thanks for the tip. I'll be sure to keep this technique in mind for future purposes as it looks to provide a very "professional" result with simple tooling. I really do like the look you have achieved with the samples you've shared.