The Fleece Performance Gen V LS standard deck wet aluminum block is a semi‑machined race block engineered for LS applications. It includes M10 main studs and side bolts, reinforced valley walls, a 0.625-inch skirt wall minimum, ductile iron sleeves, a priority oil system, and cross-braced lifter valley. Lightweight yet robust, it ships ready for final builder-specific machining.
Fleece Performance GM LTR Freedom Series Standard Deck Wet Aluminum Block