Dual, 60 lb at .815, (34 lbs at .950 & 88 lbs at .570), Large diameter spring, Alum Retainers required, Coil bind at >.450 lift (.380 spring), 9000+ RPM, Fits all Honda GX120 to GX200s, 6.,5 Chinese OHVs, and Old Style Predators. Will work with Hemi Predators, but max lift reduced.
Note: Actual coil bind is dependent on several factors including valve length, retainer style, keeper style, and valve height. Figures given are for reference only. Seat pockets for dual springs can typically be cut an additional .050