Callies Apex Series Crankshaft - 4.250 in Stroke - Internal Balance - 58X Reluctor - Forged - 1-Piece Seal - GM LS-Series RTP1000313 NOTE: Use RTV to seal

NOTE: Use RTV to seal the China walls & ends of the intake gaskets

750" Width

Tube diameter is 1-1/8"

GMC: Savana 3500 21 - 22 6

Callies Apex Series Crankshaft - 4.250 in Stroke - Internal Balance - 58X Reluctor - Forged - 1-Piece Seal - GM LS-Series RTP1000313 NOTE: Use RTV to sealProduct Description: Crankshaft Apex Series 4. 250 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