Speedmaster 1.6 rockers

every dis I read on those is the roller tip is not flat against the valve, you need to physically true them up. Also if they are true roller bearings on the shaft, the shaft needs to be hardened, if it does not apply, dont worry. I would rather run a brass bushing with full oil floating on a chrome shaft than rollers anyway. 3rd is stainless is not that strong compared to forged iron (Isky, 273 Mopar) but is usually not a factor , just an observation. 4th...They would be a great $150 rocker for mild to warm build assuming the trueness of the tips were satisfactory. Heck, they are new and shiny!