Our Falcon Performance Street/Strip Rotating Assemblies consist of name brand, quality parts at affordable prices. The Street/Strip assemblies consist of Eagle "ESP" cast steel crankshafts, Eagle "SIR" I-beam connecting rods, hypereutectic pistons, moly piston rings, and rod and main bearings. GM Small Block Chevrolet (early 2 pc rear main) 350 Rotating Asembly - Standard 4.000" Bore - 3.750" Stroke - Internal Balance. The 1003B kit contains 5.700" Bushed Connecting Rods, Speed Pro Hypereutectic Pistons - Flat Top 2 Valve Relief - Dome Volume -5.0cc, CR with 64cc is 10:2:1 and CR with 76cc is 9:2:1.