1.6 Rocker Arm Performance Gains over 1.5 Rocker Arms

Demonstrator said
Hey guys I am going through my 340 this winter and considering using the existing Cam but upgrading to 1.6 rocker if there is some decent performance gains. Is it worth spending $600-$800 to utilize 1.6 rockers or should that investment be better used on something else?

Cam: Hughes old grind HE3038AL 230/236@050 .515/.535 with 1.5 273 rockers. 1.6 would yield .552/.571.
10:1 compression Hughes Stage 1 porting X heads everything else pretty stock except headers.

Thanks

Highly unlikely and you can’t just bolt on 1.6 rockers most of the time.

I don’t care what color or what name is on the rocker it will need the geometry will need to be corrected.

Best case scenario IF you can use the faster valve motion and IF you can control the valve train and IF you have enough spring pressure at the lift you actually have, not at some arbitrary lift number then the gains might be 10 hp on average. If the valve train stays in control.

Maybe.