Product Description
K1 4.000" LS Stroker Forged 4340 Crankshaft
Fits 1997-2013 LS-Based Engines when used with matching aftermarket Rods and Pistons
No Reluctor wheel installed. Choose option to have GM 24x, Billet 24x or GM 58x reluctor included.
When including a reluctor wheel, they will not be installed on the crankshaft. They will be left off for your machine shop to install after balancing.
K1 Technologies crankshafts offer outstanding performance at an affordable price! This LS stroker crankshaft is made from 4340 forged steel, core hardened and nitride hardened for optimum strength, increased fatigue life and minimized distortion. To help ensure consistent quality each crankshaft is magnetic particle tested to ensure it is free of flaws and journal tolerances are held to +/- .0001” to ensure consistent bearing clearances. A .125" fillet radii on the journals vastly increases strength and stiffness over factory crankshafts, and straight-hole oiling improves lubrication.
- Forged 4340 Steel
- 4.000" Stroke (commonly used for 383, 408, 416, 427 combinations)
- No Reluctor Wheel Installed
- Standard snout for wet sump oiling
- 6 Bolt rear flange
- Weighs 52lbs
Note: These K1 crankshafts are currently being shipped in Texas Speed boxes, however they will be K1 branded crankshafts inside with the K1 logo and part number laser etched on the crankshaft.
*ACL or King Bearings recommended for proper fillet clearance*
