Overview Reviews Product Description Crankshaft - 4.000 in Stroke - Internal Balance - 58X Reluctor - Forged - Steel - 1-Piece Seal - GM LS-Series - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × BRIAN TOOLEY RACING LS Forged Crankshaft 4.0 STRK w/58X Reluctor Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *