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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#14331 04/18/2004 8:26 PM | Joined: Apr 2004 Posts: 72 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2004 Posts: 72 | I have aquired a set of NOS pistons for my 270 GMC rebuild and they are all coated with what I think is called "cosmolene". It is sort of a wax based protectant that each piston has been dipped in to preserve it. Anybody got a reall good method for removing this stuff? Someone had partially cleaned one of the pistons and I finished it up with some Naptha and a tooth brush. It took quite a while to get it clean. There must be something else I can use. What say you????
52 GMC Suburban...52 Chevy 3/4 ton...49 CHevy 1/2 ton Rod...49 GMC 1/2 ton retro rod project
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