The GM 5.3L L83/LT/EcoTec3 PowerPak Piston Kit is MAHLE Motorsport's latest addition to a growing line of drop-in pistons for direct-injected LT-based engines, including the EcoTec3 V8, filling a need for a forged replacement piston as a drop-in, ready-to-run assembly that requires no rebalancing or compression ratio change. The pistons are dual-coated with phosphate and MAHLE's GRAFAL skirt coating for reduced drag, wear and noise, and hard anodized top ring grooves for maximum durability and to protect against micro-welding. 1.0, 1.0, 2.0mm HV385 coated steel rings are also included. The kits are available wherever MAHLE Motorsport pistons are sold. Three bore sizes are now available: 325 cubic inch with a 3.780 bore, 327 cubic inch with a 3.790 bore and 329 cubic inch with a 3.800 bore. For more information, visit www.mahlemotorsports.com, or call 888-255-1942. (Content courtesy of MAHLE Motorsport)