the numbers i found on it are ay7648 ssh-310-nc
Crane SSH-310-NC, hydraulic, rough idle, good midrange hp Intake Open-Close BTDC-ABDC 40-90 Exhaust Open-Close BBDC-ATDC 88-42 Degrees Advertised Duration Int. 310 Exh. 310 Degrees Duration @ .050 Cam Lift Int. 236 Exh. 236 Running Clearance Hot Int .000 Exh. .000 Gross Valve Lift Int. .485 Exh. .485 RPM Range min 3800 max 6800 valve float 7000
