UEM has increased the applications in 2021 for the GM LS based blocks in both the factory replacement SILVOLITE and performance built ICON series. ICON PREMIUM series are designed to handle big boost applications and come standard with Type 3 Hard Anodized top ring groove and crown along with 1.2mm 1.2mm 3.0mm steel top ring sets. If you don’t see what you need ask our techs, it may be coming out soon.