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Old 03-11-2014, 02:46 AM
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lust4speed lust4speed is offline
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Join Date: Jul 2002
Location: Yucaipa, SoCal
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I prefer the seal you have pictured, and go with those if the inner spring size allows it. These are more forgiving and seem to conform better. I just did a set of 670 heads that someone in the past cut the guides down to .527 and the steel shell seals would slide on loose. I went with a set of .500" non-sided seals and they went on like they were made for the guide.

I just order mine out from Summit.

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Mick Batson
1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon.
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