PRW Industries 1800346 Platinum Series Crankshaft Adapter Sleeve GM LS Swap

The PRW Industries 1800346 is a Platinum Series crankshaft adapter sleeve engineered to simplify LS engine swap builds by bridging the dimensional mismatch between older GM torque converters and the Gen III/IV LS-series crankshaft snout. Whether you are building a dedicated race car or a high-performance street machine, this precision-machined sleeve eliminates fitment guesswork and ensures proper torque transfer at the crankshaft interface.

Key Features:

• Adapts older GM torque converter snout (TH400, TH350, 700R4, 4L60E) to LS-series crankshafts
• Part of PRW's Platinum Series Xtreme Duty flexplate family
• Constructed from lightweight aluminum with a natural finish
• SFI certified for high-performance and racing use
• Made in USA with a limited 1-year warranty
• Sold individually
• UPC: 842864007050

PRW Industries is a globally recognized manufacturer of racing and performance aftermarket engine components. The 1800346 adapter sleeve is a straightforward bolt-on solution that allows builders to retain an early GM transmission when swapping to a modern LS powerplant, saving both time and fabrication costs.