Small Block Chevy 384 CID Balanced Rotating Assembly, Eagle B15404E040

Eagle B15404E040 is a balanced Street & Strip rotating assembly for the small-block Chevrolet 350 with a two-piece rear main seal. Its 4.040-inch bore and 3.750-inch stroke combination is listed by Eagle as 384 cubic inches.

Kit contents and specifications

• Cast crankshaft with 3.750-inch stroke
• 5.700-inch 5140 I-beam connecting rods with 3/8-inch ARP 8740 bolts
• 4.040-inch KB Claimer hypereutectic pistons with -12 cc inverted domes
• Plasma-moly standard-gap piston rings and King SI rod/main bearings
• Pioneer damper and 168-tooth flexplate

This is an engine-build rotating assembly, not an assembled engine. Match the block, bore and rear-seal configuration before ordering. Eagle excludes use in pollution-controlled vehicles.