Mahle Elite Sportsman Drag Series PowerPak+ Pistons are designed specifically for bracket racing applications. These dome-top pistons are manufactured to exacting tolerances and compatible with popular Big Block Chevy cylinder heads. They are light-weight, externally strutted and feature true slipper skirt 2618 alloy forgings, dual coatings, lateral gas ports, and advanced pin bore, profile, and ovality geometries. All piston sets are sold in quantities of 8 and include wrist pins and circlips. To complement these pistons, a new series of Elite Sportsman PowerPak+ Ring Kits have been introduced along side them. Ring kits are grooved for a .043", .043", 3.0mm ring set and are available in either a standard or low tension variants. Rings are sold separately from the pistons to allow you to choose which application best suits your needs.