Big block valve spring question

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Well-known member
May 30, 2011
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Pittsburgh, PA
My Car
'71 Sportsroof
'90 Mustang 7-Up 5.0 ragtop (sold after 20 years)
'66 Sunbeam Tiger Mk.IA
I have a 1974 production 460 bottom end with C8 heads. My Dad had assembled it 15+ years ago with a #10340496LK Lunati Bracket Master (mild) hydro flat cam that I bought for it. For the life of me, I can't remember if I bought valve springs at the same time, later, or not at all. The springs that are in it are fully painted gray in color, otherwise no stripes or identifying marks on them. Does anyone know if OE springs came painted, or is there a chance that they might be Lunatis? I could probably remove a spring or 2 from the heads to inspect for witness marks under the retainers if I had to since the engine hasn't been fired.

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