okay i cant figure this out. cams appear to be speced at 1.5 rocker arm ratio. to find lift for 1.43 i would take the advertised lift and divide it by 1.5 to get lobe lift. then lobe lift times 1.43 for actual lift. .448/1.5=.299*1.43=.427 then do you need to subtract the lash also? with the 1.54 rockers you would have .460 lift . if you used a cam with .448 advertised lift with 1.43 rockers your good to go? with 1.54 rockers you have to cut the guides down? am i thinking to hard and making this harder than necessary.

Kenny  Onalaska, Texas

You shouldn't have to cut the guides with that amount of lift.  You do subtract lash to figure total valve lift.


Lawrenceville, GA