Cam specs for the "9" cam are as follows: Advertised duration: intake 256, exhaust 268 Duration @ .050: intake 194, exhaust 210 Lobe seperation: 109 Intake centerline: 112 Lift at cam: intake .272", exhaust .274" Lift at valve: intake .435", exhaust .438" Timing @ .050" lift:Intake opens 15 ATDC, closes 29 ABDC exhaust opens 31BBDC, closes 1BTDC Cam specs provided by Tony Williamson of the G-body mailing list. Picture provided by the Oldsmobile History Center.
to the specifications page.