Eagle 12157000 Competition Rotating Assembly CID Small Block Chevy - 400-427

The Eagle 12157000 is a high-performance competition rotating assembly engineered for serious small block Chevy builds ranging from 400 to 427 cubic inches. This complete stroker kit is designed for engines using 350 main journals and delivers the strength and precision needed for demanding street/strip and racing applications.

Kit Includes:

• 4.000" stroke forged 4340 steel crankshaft with superior strength over cast units
• 6.000" H-Beam connecting rods with extreme stroker clearancing
• 7/16" ARP 2000 bolts for maximum clamping force and reliability
• Forged 4032 aluminum MAHLE pistons with 4cc dome, 4.125" bore
• Plasma-moly file-fit piston rings for optimal sealing
• King XP series performance rod and main bearings

Key Features:

• Forged 4340 steel crankshaft provides exceptional durability for high-horsepower applications
• H-Beam rod design offers superior strength-to-weight ratio
• Stroker-clearanced rods accommodate increased stroke without interference
• Premium ARP 2000 fasteners ensure consistent rod cap retention
• MAHLE forged pistons built to withstand extreme cylinder pressures
• King XP bearings feature advanced tri-metal construction for enhanced load capacity

This competition-grade rotating assembly is ideal for high-performance street engines, weekend bracket racers, and serious enthusiasts building powerful small block Chevy combinations. The forged internals and premium components make this kit suitable for engines producing well over 500 horsepower when properly assembled and balanced.