Does anyone know the how much valve clearance a stock 1990 automatic sc has?
With a change in cam and 1.73 ratio roller rockers is there a formula to calculate the new clearances other than checking by hand?
stock cam intake: .445" 192 degrees @ .050"
exhaust .457" 198 degrees @ .050"
lobe seperation 108 degrees
new cam options intake: .480" 204 degrees @ .050"
exhaust .480" 216 degrees @ .050"
lobe seperation 114 degrees
intake: .500" 210 degrees @ .050"
exhaust .500" 226 degrees @ .050"
lobe seperation 114 degrees
With a change in cam and 1.73 ratio roller rockers is there a formula to calculate the new clearances other than checking by hand?
stock cam intake: .445" 192 degrees @ .050"
exhaust .457" 198 degrees @ .050"
lobe seperation 108 degrees
new cam options intake: .480" 204 degrees @ .050"
exhaust .480" 216 degrees @ .050"
lobe seperation 114 degrees
intake: .500" 210 degrees @ .050"
exhaust .500" 226 degrees @ .050"
lobe seperation 114 degrees