LS1 4.000" STROKER CRANKSHAFT FORGED 4340 - 6.125" ROD - with 24x Tooth Reluctor Wheel If you're looking for a way to get more power out of your LS1 engine, an ls1 forged stroker kit is the perfect solution. A forged stroker kit uses a specially-designed cylinder head and pistons to increase the engine's power and performance without significantly increasing the amount of noise it produces. For the best results, you will need to consult with an experienced mechanic to determine the best design and configuration for the engine. You can buy from link below- https://justpaste.it/7etm0