Callies Performance Products - RB Crankshaft

RB26/28/32

Standard Features

• Available in standard and full counterweight
• Average weight: 42 Ibs standard, 57 lbs full counterweight
• 4340 steel certified by callies in house metallurgical lab
• Rod and main journal surface finish is refined to 5Ra or less
• Tear drop oil hole lead-ins
• Straight shot oiling
• No drill internal balance

Full Counterweight Sizing

           Stroke                           Main                            Pin

• 73.7MM (2.6)                54.9MM                      47.9MM
• 77.7MM (2.8)                54.9MM                      47.9MM
• 90.0MM (3.2)               54.9MM                      49.9MM