http://tinyurl.com/m7k43zs
CTA Tools 2234 Small Engine Valve Spring Compressor
Fits Most OHV and L-Head Automotive Engines
Works on Valves as Short as 3.5-Inch (89-Millimeter) and Valve Spring Retainers Down to 7/8-Inch (22-Millimeter) in Diameter
Compressor is 7-Inch (18-Centimeter) at the Opening and 5-Inch (13-Centimeter) in Depth
Rack and Pinion Design Compresses Valve Springs Easily
Includes Both, Offset and Straight Adjusting Jaws