A ready-to-run performance 4L60E for LS-swap and LS-equipped builds, engineered for firm, reliable shifts on the street with mild strip duty. Inside you’ll find high-performance friction plates, a recalibrated valve body, Beast sunshell, reinforced input drum, rebuilt performance pump for consistent flow, new solenoids, and a fresh harness—all capped by a chrome pan. Rated to about 550 hp/450 lb-ft with a standard pattern; converter not included. Pair with a B&M Hi-Tek SuperCooler to protect your investment.