The springs look ok. With those springs and that cam running 160 seat pressure the engine is never going to be overly quiet with those lifters. It will always have the sowing machine whirl. But it will likely be a little quieter and clatter less hot with the preload set deeper. Keep in mind the recommended .035” is a moving target once the engine is hot. Setting it for .025” cold plus the engine expansion of the AL heads and your running about 1/2 of the recommended preload. Which could be fine, don’t set them deeper than necessary. You won’t know what it likes until you try setting them deeper.
Last edited by Jay S; 06-19-2025 at 09:41 PM.
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