Isky Cams 10 Valve Locks - 11/32" Valve Stems - SB Chevy, SB Ford

Isky 4140 Chrome Moly Split Valve Locks are too tough to stamp. Our tooling marks will prove to you that they are turned on a lathe. Beware of those cheaper split locks on the market, that are merely stock cold stamped parts (some may be case hardened for a hard surface -- but they lack core strength)! Isky Heat Treated Locks with the proper taper angle grip your valve retainers with greater locking force and will out tensile anything on the market today. They are an absolute must for today's Hi-RPM racing engines. Don't take chances with blackened or plated stock type locks masquerading as genuine heat treated Isky. The safety of your racing engine demands only the best. . ISKY CHROME MOLY VALVE LOCKS.

As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing program for constant improvement of camshaft and valve train design. These tests are conducted daily in Isky's new enlarged dyno facility. To properly evaluate and prove the efficiency of Isky racing cams and valve train components, Isky maintains a continuous engine testing program. Still another dynamometer is used exclusively for the purpose of testing the endurance of racing valve gear components in today's OHV engines. The final phase of testing is accomplished when the newly dyno tested cams and components are coordinated with the best stock and performance equipment into racing cars and boats as well as performance and stock street machines. The testing is completed under actual racing and street conditions that our customers may encounter. This assures the consumer of accuracy and quality control unparalleled in the industry. The results of these tests are available to all hot rodders, racers, and engine builders in the form of horsepower charts, plus information on carburetion, jetting, ignition, timing, and exhausts. These are just a few of the many ways Isky's research is shared with the racing enthusiasts.

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