8 Inch Valve Spring Compressor for Overhead Valve OHV Engines - Key benefit: Direct acting compressor lever provides better visibility of valve spring retainers in hard-to-reach areas, making work easier and more accurate. - Size and reach: Jaw opening 1-3/8" to 5-5/8" (35 mm to 142 mm); neck clearance 5-7/8" (150 mm). - Professional quality: Fully adjustable jaw with 75-165 mm capacity and 150 mm projection; suitable for most small and medium OHV engines. - Comfort and compatibility: Comfort grip jaws grip and compress valve springs easily; supports valve springs up to 8 inches in length on many cars and trucks. - Operation settings: Two settings for quick and easy compressing and releasing; parallel lifting motion with automatic locking. - Use scenarios: - Replacing valve springs on common small to medium OHV engines in passenger cars and light trucks. - Servicing overhead valve engines during valve train work where spring removal is required. - Installing valve springs in engines with longer springs found in some trucks or SUVs.