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Help! Valvetrain shim size

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Old Jul 16, 2005 | 06:18 PM
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Default Help! Valvetrain shim size

Ok so when I took my car apart a long long time ago I found that shim that goes under your rocker arms and thought it was aftermarket because of the cam that was in there, but with TREX I didn't need that shim so I threw them away

Now I need to know what size that shim is so I can make a new pair of them, I don't really want to take my transam apart to mesure it.

If someone has their valvetrain apart can you mesure the shim for me and post it up?
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Old Jul 16, 2005 | 07:44 PM
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What valvetrain are you running? There aren't any shims on a stock setup.
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Old Jul 17, 2005 | 08:40 AM
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Ok then something is really wierd, I have what I thought were stock rocker arms, 7.400 TR pushrods, stock base circle comp camps cam, comp r lifters, and I know for sure my valves are aftermarket as they have a thicker (and longer?) stem.
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Old Jul 17, 2005 | 09:16 AM
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Were the shims little black rectangles approximately .54" x .86" with a .35" x .32" ovalish shaped hole w/ 2 flat sides...in the middle? If so, those are the Ford Motorsport pedestal shims. They come in a pack that contains two different sizes like .015" and .030" if I recall. I guess your geometry was off somewhere, like you said, with either higher ratio rockers, longer valves etc. Somebody must've used them to correct the problem. They work well for that.
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Old Jul 17, 2005 | 10:42 AM
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Also, are you sure the lifters are Comp R? If so, those require adjustable rocker arms. Stock rockers aren't adjustable and won't work with that setup. Can you take a few pics of the valvetrain?
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