Chevy Sbc 350 12 Point Black Oxide Intake Manifold Bolt Kit If your vehicle is using

If your vehicle is using aftermarket components

The Speedmaster valve locks will fit any Speedmaster 10 degree retainer and are recommended for all race applications due to their superior strength

We control the entire machining process and use only premium materials

valve cover gaskets

Chevy Sbc 350 12 Point Black Oxide Intake Manifold Bolt Kit If your vehicle is usingSpeedmaster black oxide coated chromoly intake manifold bolts are rated at 170,000 psi. They're precision machined for optimum thread engagement and have a wide area flange for better load distribution. They also feature precision rolled threads, which prevent galling, while promoting more consistent torque loading.