Crank Adapter LS to Older GM Converters 20pk

The Crank Adapter LS to Older GM Converters 20pk from ALLSTAR PERFORMANCE solves one of the most common compatibility challenges in LS engine swaps. When retrofitting a modern LS powerplant into classic or second-generation Chevrolet vehicles, the crankshaft damper bolt pattern and converter interface differ significantly from original equipment. This 20-piece kit eliminates the need for custom machine work, allowing you to mate contemporary LS torque converters to older GM automatic transmission applications without fabrication delays or expense.

Each adapter in this pack is precision-engineered to bridge the dimensional and threaded differences between LS crankshaft configurations and legacy GM converter bolt patterns. The adapters maintain concentricity critical for converter balance and transmission input shaft alignment, preventing vibration and premature bearing wear. ALLSTAR PERFORMANCE's manufacturing ensures consistent tolerances across all 20 units, so you have spares for multiple projects or team builds without reliability concerns from inconsistent fitment or material variance.

Professionals and enthusiasts performing LS swaps into first-gen Camaros, Novas, Chevelles, or C2/C3 Corvettes depend on this adapter to maintain OEM-quality drivetrain geometry without custom boring or welding. The bulk 20-pack format is ideal for shops doing multiple restorations, race teams supporting a fleet, or serious builders stocking critical hardware. Installation is straightforward—simply replace the original damper bolts with the appropriate adapter studs, then bolt your modern converter in place, ensuring your LS swap runs true and smooth from idle to launch.