The H-290 specs above are not the same as the CCH-290. Crane did not make an H-290 for the B/RB. The CCH-290 was offered in single and three bolt versions. It's a single pattern hydraulic lifter camshaft, having 290 degrees advertised duration. Lobe lift is .332", providing a gross valve lift of .498" with the standard 1.5:1 ratio rocker arms. The duration at .050" is 236 degrees. Cam timing at .050" is: intake opens 11 degrees BTDC, intake closes 45 degrees ABDC, exhaust opens 55 degrees BBDC, exhaust closes 1 degree ATDC. Lobe separation is 112 degrees. As these were last produced in the mid-1970's, we don't list the specs on our website, however you can contact Crane directly at 866-388-5120, or
tech@cranecams.com, for specs on any of our camshafts, and we can also send you a spec card. Regards, Chase