Eagle B15454E040 Street Performance Rotating Assembly SBC 383ci 3.750" Stroke 4.040" Bore

The Eagle B15454E040 is a complete balanced rotating assembly designed for small block Chevrolet applications, creating a 383 cubic inch displacement with a 4.040-inch bore and 3.750-inch stroke. This street performance kit delivers reliable power for naturally aspirated pump gas engines producing under 500 horsepower.

Complete Assembly Includes:

• Eagle cast steel crankshaft with .092-inch fillet radiuses for improved strength over OEM cranks
• Eagle SIR forged 5140 steel I-beam connecting rods measuring 5.700 inches center-to-center
• 3/8-inch ARP 8740 connecting rod bolts
• Hypereutectic aluminum pistons with +12cc dish and two valve reliefs
• Plasma-moly standard gap piston rings
• King SI rod and main bearings

Key Features:

• Factory balanced assembly - ready to install, no additional balancing required
• Internally balanced design for smoother operation
• 2-piece rear main seal configuration
• Press-fit or floating wrist pin compatibility
• Designed for street and light performance applications

This assembly provides excellent value for engine builders looking to create a proven 383 stroker combination with quality components at an affordable price point. The "B" prefix in the part number indicates this is a pre-balanced kit, saving time and money during installation.