Proform Head-On Valve Spring Compressor Bolt-On Aluminum Purple Anodize - GM LS-Series 01225 The kit utilizes Industrial Thread

The kit utilizes Industrial Thread Inserts that are installed like Heli Coils

Contoured Grip

There are four separate retard stages that can be activated independently or together for a to┬ ¡tal sum of retards

18" standard rotation rigid fan design

Special fittings

Proform Head-On Valve Spring Compressor Bolt-On Aluminum Purple Anodize - GM LS-Series 01225 The kit utilizes Industrial ThreadProduct Description: Valve Spring Compressor Head On Bolt On Aluminum Purple Anodized GM LS Series PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering and manufacturing creative products from intelligent concepts. Our goal is to provide the performance enthusiast with innovation,