- CNC-machined from 6061-T6511 aluminum billets and polished to a show finish
- Clearanced for valve lifts up to .590"
- Accept stock-style or S&S roller rocker arms
- Top end oiling supplied through stock oil fittings or through pushrods when used with S&S tappet guides and pushrods
- Two-piece design allows removal and installation in some frames
- Top and bottom are sealed with O-ring-type seal for leak-free operation
- Include front and rear rocker boxes and rocker shafts
- Made in the U.S.A.
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