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Butler Performance Inc. - Rotating Assemblies & Stroker Kits
The rotating assembly, or stroker kit, is the heart of a high performance engine. Butler uses only high quality crankshafts, rods, and pistons in their rotating assemblies as well as stock's many assemblies from brands such as Eagle, Scat, Callies, and more. These assemblies can be purchased factory balanced or Butler can put them through it's internal balancing process. Click here to read more about the "Butler Process" all kits go through before being shipped to you or your builder.
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Looking for an assembly and no time to wait? These assemblies are guaranteed to be in stock and usually ship in 3-5 business days fully balanced.
The LS platform was introduced to Pontiac with the 98-02 Trans Am's, 04-06 GTO's, and 08-09 G8's. Butler LS specializes in the LS engine as well as many swap applications. Visit our dedicated...More Details »