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Heat-treated internal parts
while Cleveland/Modified applications use precision laser-cut steel for a factory-style fit and finish
4340 chromoly H-beam connecting rods
making them a great choice for your disc brake conversion
GM Powerglide Transmission Planetary Gear Set - Long Heat-treated internal partsSpeedmaster planetary gear sets are ideal for modern big displacement engines. Speedmaster planetary gear sets have an extremely stout output shaft. The forged output shaft from the Speedmaster planetary gear sets offer excellent torsion memory, but it is near impossible to break! Speedmaster planetary gear sets are available in long and short versions. Speedmaster only offers planetary gear sets provide superior torque output for modern high output
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