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- Buick 455 Drag Strip Tests from Kenne-Bell
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Thread: changing stock 455 heads to stage 1 heads.

  1. #1
    72torqmonster Guest

    changing stock 455 heads to stage 1 heads.

    what would i need to do to change my stock 455 heads to stage 1 heads? id rather do it this way than spend $2000+ for some new/real ones.

  2. #2
    Basically, the only difference is the valve size. I bought some from "mad dog" on ebay. If you try them, do a search through this site's ebay forum. They were about 175.00 or something.

    I have and you should consider "valve relief", opening up the closed area beside the valve in the head. I have done this with a "seat cutter". It makes for a nice even starting place to polish your combustion chambers. Your valve springs should be matched to whatever cam you put in.

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