The Manley 4340 Billet 83MM Stroker Crankshaft is the answer to all your horsepower prayers.This crankshaft has been carved out of 4340 billet, and has endured a multi-step heat treatment process. Additionally, it has been stress relieved, shot peened, nitrated, and 100% magnafluxed.
But it doesn’t end there just yet. The Stroker Crankshaft also has special teardrop diagonal oiling, and has knife-edged counterweights.Because of all these fine elements, you’re going to be left with a strong, and happy motor built to handle all the boost and brapping.
If you plan on being the king horsepower, do it with a Manley billet crankshaft.
- 4340 Billet
- Multi-step heat treatment process
- Stress relieved and shot peened
- 100% Magnafluxed
- Knife-edged counterweights
- "Direct Shot" dual main priority rod journal oiling
- Gun drilled crank pin and counter weights
- 18 lbs
- 83mm Stroke
2002-05 Subaru WRX will require mods to utilize this crank.