Big Block Chevy
These CNC-machined Speedmasterstud girdles help control valve lift and timing changes due to stud flex, allowing for more consistent high-rpm performance. Each stud girdle is anodized and comes with high-quality mounting hardware and hardened adjusting nuts. Tall-style valve covers are required.
The best thing you will ever do for your engine is to put a set of stud girdles on it. This stabilizes the valve train, and allows for full lift. Studs will flex on an engine at high rpm, when running cams that are higher than stock, and those running roller cams with higher spring pressures, must have these. We never build an engine without installing a set of these. Takes no additional time to install than when installing roller rockers. It's an absolute fact that studs will flex at mid to high rpm. It happens in an erratic fashion, causing loss of engine smoothness, hp, and slower acceleration. For the low cost, we have them for these are a must.
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Ensure Proper Valvetrain Geometry
Speedmaster Rocker Arm Stud Girdles are designed to reinforce the rocker stud and keep valvetrain deflection to a minimum. These rocker arm stud girdles are CNC-machined from premium materials for precision and durability.
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.