COMP Cams Spring Shim .030 X 1.640

Marsoni

M251S

$17.73

Get it in 3 business days with 1 day shipping. Friday, May 29

COMP Cams Spring Shim .030 X 1.640These . 030" thick Valve Spring Shims with 1. 640" outside diameter and . 635" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat treated to stand up to radical Cam lobes. Kits are also available. Catalog User 1

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We offer a 30-day return/exchange service after receiving.
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Unfortunately I ended up being very disappointed with this purchase, after about two weeks of use, it just stopped performing. Not sure what happened but it just stopped releasing the ball and I don't know why, it had no flexibility left to it. I'm not doing a very good job of trying to explain why it quit working but suffice it to say, it became useless after a couple of weeks. Broke my neighbors dog's heart, lol.

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Reviewed in the United States on November 20, 2025