Community Q&A Question: Hardened Shims? and what kind of spring height gauge

Asking About: Mustang Trick Flow Valve Spring Upgrade Kit For OE Style Cast Iron Heads (79-95) 5.0 5.8


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Hardened Shims? and what kind of spring height gauge

Are these valve spring shims hardened? Also what is the spring height gauge exactly? Is it for setting up the assembled spring height, is it one of those micrometer types, don't see it in the pics. thanks
from Mickleton |
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Accepted Answer
The shims, locks and retainers are all constructed from hardened 4140 chromoly steel.

The height gauge is an L-shaped plastic piece with graduations for measuring the compressed spring height.
from Hewitt |
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Thanks, very helpful. - Ed last year
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