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* Shipping time on this item takes 3-4 weeks *
If you are building a high-performance engine, then you will need this ATK Chevy LM-7/LS 347CI Short Block. It comes with Scat Premium Pro 4340 forged pistol to handle horsepower up to 700HP. Internally balanced OE Reground 3.622" crankshaft and Scat Premium Pro 4340 forged connecting rods ensure optimal performance of the short block.
Short block Specifications:
Every great build needs a solid foundation! For that reason, we take the hard work out of the picture by selling short blocks that are ready for you to complete yourself. Our GM Short Blocks are most commonly packaged as the engine block assembled with Pistons, Piston Rings and Crankshaft installed.