The Patented SD Performance Mega Brace lifter bore reinforcement system is by far the strongest lifter bore brace on the market today. Don't be fooled by other "fancier" looking designs on the market. The Mega Brace was extensively stress tested in a controlled environment before being brought to market in 1999. With over 3000 braces sold with no reported problems, it's no wonder more and more engine builders like www.butlerperformance.com, and others are selling and using the Mega Brace in engines they build. It's simple to install and will allow you the option of running todays big hp aggressive roller cams without the fear of lifter bore failure.