Imca Modified Racing Engine 4340 Forged Steel Crank Unit
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Jeff's Performance sells its own cranks and connecting rods made to their specifications. This crank is a 4340 forged steel unit that weighs only 44 pounds thanks to the pendulum-cut counterweights. The lightweight pistons required a bob weight of just 1,742 grams, which meant a few extra holes had to be drilled into the crank to get everything balanced. View Related Article
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