Help with .030" valve shims OD and ID I need - LS1TECH - Camaro and Firebird Forum Discussion

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Help with .030" valve shims OD and ID I need

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Old 01-13-2018, 10:57 AM
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Default Help with .030" valve shims OD and ID I need

I need help on what OD and ID valve shims i need the thickness I need is .030" and im going to be using it with ls6 valve springs and then later on going to use pac 1218 with a Howard's ASA camshaft
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Old 01-13-2018, 11:48 AM
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Have you called ANY of the cam companies about this? They will give you a quicker answer than the internet, and be correct.
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Old 01-13-2018, 12:10 PM
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I just message summit racing and Howard's cams, summit said to call Monday, Howard's haven't replied yet
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Old 01-13-2018, 04:00 PM
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I bought them from JEGS and bought:

"SPRING SHIM .015 X 1.250 Part # 249-4736-16"

You will need to look for the thicker part but hopefully this helps. If you are using the one piece seal/seat than you need to put the shims on top of the seal/seat so verify the ID will fit over. If you are using umbrella seals they go on before the valve seal.
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Old 01-13-2018, 07:11 PM
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Ok yes I do have the umbrella type seals, so the ID wouldn't matter?
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