4.125" Callies Magnum LS 58X Crankshaft

***1 IN STOCK AS OF 05-15-2024***

4.125" Stroke, "LS" Magnum Crankshaft, 4.125" Stroke, 2.100" Journal, Wet Sump, Gen III/IV LS1, LS3, LS7 Post, 58-Tooth Reluctor, 8 Counterweight, Normally Aspirated, Boosted & Nitrous Applications.
#APU-31W-M2

#CAL-APU-31W-MG

Features:

• Average Weight for 4.000 in. Stroke Balanced to 1750g Bob. = 47 lbs.
• Magnums are Sold Rough Balanced to 1700g Bob.
• Gun Drilled Mains
• All Rod Journals Lightened
• Dual Linear Post Keyways
• Stroke Availability from 2.600 in. to 4.500 in.
• Heat Treatment = Perma Case Deep Nitride