ANDREWS J Grind Cam — J grind, 242° duration, 0.405–0.425" lift – 48-69 Big Twin

The J Grind Cam gives street and drag bikes stronger mid-range and top-end power while maintaining a smooth idle up to 6,000 rpm. 🔧

• Works with solid or hydraulic lifters for broad compatibility.
• Computer designed and precision ground from alloy steel billets on Landis CNC cam grinders.
• Adds usable power across the rpm band while preserving a steady idle for mild street applications.
• Bolt-in installation with no head work required for most applications.
• Made in the USA.
• Installation notes: check coil bind, valve-to-valve clearance, and valve-to-piston clearance before use.
• On late 1977 and later engines, the pitch diameter on camshaft, pinion gear, and breather valve gear was changed; those components are not interchangeable with earlier-style parts unless replaced as a set and are identified by a circular groove on the cam gear.