Eagle B13052L03053 SBC 383 Stroker Rotating Assembly 1-Piece Seal 4.030 Bore

The Eagle B13052L03053 is a balanced street and strip rotating assembly designed for small block Chevrolet engines with 1-piece rear main seals. This complete 383 cubic inch stroker kit transforms a 350 engine into a torque-producing powerhouse suitable for street performance applications making up to 500 horsepower.

Complete Assembly Includes:

• Eagle cast steel crankshaft with 3.750-inch stroke and 350 main journals
• Eagle forged 5140 steel "SIR" I-beam connecting rods, 6.000-inch length
• 3/8-inch ARP 8740 capscrew rod bolts
• Mahle 4032 forged pistons with -16cc inverted dome design, 4.030-inch bore
• Performance piston rings
• High-performance rod and main bearings

Key Specifications:

• Displacement: 383 cubic inches at 4.030-inch bore
• Stroke: 3.750 inches
• Rod Length: 6.000 inches
• Compression Ratio: 10.0:1 with 58cc heads, 9.4:1 with 64cc heads
• Balance: Factory balanced by Eagle (part numbers beginning with "B" are pre-balanced)
• Internal balance configuration

This assembly is engineered for reliable street and strip performance, offering excellent value for mild to moderate performance builds. The factory-balanced design eliminates the need for additional machine shop balancing work, making it a ready-to-install solution for your engine build.