Low-Compression Cam - #2 Grind - ShovelheadDesigned with a combination of shorter durations and higher lifts to offer the advantages of a broad torque output through the entire rpm range. Designed for hydraulics, but could be run with solids. Grind #2 offers more power through the rpm range for engines with low compression pistons; the low compression sister to a "B" grind cam. Made in the USA. On late '77 and later engines, the pitch diameter on the camshaft, pinion gear and breather valve