Callies Apex Series Crankshaft - 4.000 in Stroke - Internal Balance - 58X Reluctor - Forged - 1-Piece Seal - GM LS-Series 75301 The shim kit comes with

The shim kit comes with three different thickness aluminum shims

Includes lightweight aluminum clamp-on mounting bracket

and optional short visor

All scoops surround approximately half of the air cleaner assembly

4 in Extension

Callies Apex Series Crankshaft - 4.000 in Stroke - Internal Balance - 58X Reluctor - Forged - 1-Piece Seal - GM LS-Series 75301 The shim kit comes withProduct Description: Crankshaft Apex Series 4. 000 in Stroke Internal Balance 58X Reluctor Forged Steel 1 Piece Seal GM LS Series Sold Individually Callies Performance Products began manufacturing high performance crankshafts in 1989. With many years of engineering and employee experience, Callies has grown to be the industry leader for innovative product design. Callies Performance Products takes pride in staying ahead of the competition with the