7 Degree 11/32" Std Install Height Chromoly Valve Locks Keepers The impeller and cavity have

The impeller and cavity have been custom CAD designed and engineered to be larger and more efficient to provide flow that is 40 percent greater than stock pumps

So can features such as full ball-bearing construction

Speedmaster chromoly steel retainers are made from 4140 chromoly and then heat-treated for long life

that's 50 percent less backlash than other competitive cables on the market

7 Degree 11/32" Std Install Height Chromoly Valve Locks Keepers The impeller and cavity haveSpeedmaster valve locks are designed for stock or performance engines using 7 degree valve locks. They are manufactured from machined steel and offer excellent valve spring location, so it is not necessary to change to a 10 degree retainer. Whether you're rebuilding a stock engine or changing to valve springs that have more seat pressure, these Speedmaster valve locks will provide the reliability that you've been looking for.