7 Degree 8mm Std Install Height Chromoly Valve Locks Keepers [LS] While the GM 8

While the GM 8

Benefit from an easy installation and gain in horsepower

8" diameter ring gear and removable pinion support

and 3/8 in

These control arms are manufactured to strict tolerances to employ a great fit and exceptional performance

7 Degree 8mm Std Install Height Chromoly Valve Locks Keepers [LS] While the GM 8Speedmaster 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.