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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Speedmaster valve locks are wider-angled 10 degree locks
These scoops give you that classic Hilborn-style look with a polished aluminum body
Our EFI systems provide excellent throttle response throughout the RPM range along with smooth engine operation
Convert any one-piece GM TH400 case into a two-piece case with our Speedmaster TH400 case adapter
10 Degree 11/32" Std Install Height Chromoly Valve Locks Keepers Speedmaster valve locks are wider-angledSpeedmaster valve locks are wider angled 10 degree locks. They distribute the ever increasing valve spring loads over the retainer better than typical 7 degree locks by reducing the chance of "pull through" failure. They are machined from chromoly steel, heat treated for maximum strength, and designed with a 10 degree taper. The Speedmaster valve locks will fit any Speedmaster 10 degree retainer and are recommended for all race applications due to
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