Features: Effortlessly rotate your Car Big Block engine's crankshaft with our Engine Crankshaft Turning Socket Tool, designs specifically for models like the 366, 396, 402, 427, and 454. Crafted from aluminum, this tool ensures a not damaging fit while providing a 1/2" drive Suitable for most breaker and ratchets. Suitable for professional automotive technicians, DIY enthusiasts, and auto parts retailers want reliable engine maintenance tool . Perfect for use in automotive repair shops, Person garages, or by Racings team preparing engines for competition. Enhances your engine maintenance toolkit with this Precisions engineered socket, ensuring efficient and safe crankshaft rotation each time. Specifications: Surfaces Finish: polishes Manufacturer Part Number: 86899 Material: Aluminum Height: about 40mm/1.57inch Internal diameter: about 41mm/1.61inch External diameter: about 58mm/2.28inch for All Car Car With The Big Block Car Engines(BBC): 366 (6.0 L) 1960-1990 396 (6.5 L) 1965-1972 402 (6.6 L) 1970-1972 427 (7.0 L) 1962-1963 454 (7.4 L) 1970-1976 Package Includes: 1xCrankshaft Turning Socket Tool note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.