MANLEY PRO SERIES 4340 Forged Steel Crankshaft [Stroke 3.750 | Minimum Rod Length 5.850 | Main Journal Diameter 2.6572 | Rod Journal Diameter 2.0000 | Bobweight (grams) unbalanced | Total Weight (lbs.) 51-53] (FORD 4.6L MOD) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS