I am in the process of doing a NA F22A engine build. One of the keys is matching a camshaft regrind with my application. Unfortunately, I have not been able to find any specs for the stock F22A1/4 and F22A6 camshafts. Due to problems with trying to get a camshaft reground properly (I'll open a new topic later on this), I purchased used F22A1 and F22A6 camshafts and degreed them.

I degreed them on the head, not the block, but the results should be the same. Photos of the degree wheel and the dial indicator are posted here. I set the valve lash to zero, so all measurements are of actual valve lift, and I measured lift at the top of the valve.

Following are the valve lifts and duration that I measured. All durations are at 0.050" valve lift. The F22A6 has an additional 6 degrees of duration and 0.015" valve lift on both intake and exhaust.
F22A1 F22A6
Measured
Exhaust lift 0.350" 0.365"
Intake lift 0.350" 0.365"
Exhaust open BBC 30 36
Exhaust close ATC -18 -18
Intake open BTC -13 -13
Intake close ABC 23 29
Calculated
Exhaust duration 192 198
Intake duration 190 196
Exhaust center 114 117
Intake center 108 111
Lobe separation 111 114
Advance 3 3
Degrees overlap -31 -31

What I find interesting is that Honda chose to extend the duration by increasing the intake/exhaust lobe separation. Exhaust close and intake opening, and hence valve overlap, are unchanged.

Anyway, I hope someone finds these useful

 

Awesome info! Glad someone finally had the ability and took the time to do this.