There's a place in Bordentown or Burlington that does coating but it will probably cost the same as buying coated headers. At least with the painted headers you can test fit them first unless of course your car is your daily driver and you can't afford the down time. Jet-Hot does sell a lot of headers already coated as well so you can check their website. The painted headers will rust but it's not like they will fall apart real fast so you might be fine running them if funds are tight.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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