what rockers are these?

[blk9450]

i got these rockers with my twisted wedge heads and i basically want to find out what they are in terms of ratio. they say nothing except "f72" on each one. they are blue anodized aluminum, stud mount. i attached two pics.

 

[91LX302]

1.72

 

[astronut1885]

they're FMS 1.72 roller rockers, old version. I got the same ones for my car when I did my H/C/I. The new FRPP rockers look different, but they're pretty much the same stuff.

 

[blk9450]

sweet thats what i was thinking, thanks alot. anyone wanna trade for 1.6's?