1969 Race Dart w/ 426 Hemi- garaged for 45+ years

340sFastback said

Love that engine picture. One doesn't know why rockers don't clear valve covers? They look like low profile slim rocker arms. Is it the angle of valves is different on Indy heads?

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From my research this is not uncommon. I spoke with Hemi Denny he has had an issue with this engine he built. His covers are aluminum and he was able to get more movement out of them before the metal fails. Here is a pic of his he sent me...............you can see the bulge on the cover.