Eagle 129364030 LS Competition Rotating Assembly Stroker Kit - 408

The Eagle 129364030 Competition Rotating Assembly is a complete high-performance stroker kit designed for Chevy LS engines, delivering 408 cubic inches of displacement. Built for engines producing up to 750 horsepower, this assembly combines premium components with exceptional value for serious street and race applications.

Complete Kit Includes:

• Eagle 4340 forged steel crankshaft with 4.000-inch stroke and 24-tooth reluctor wheel
• Eagle forged H-beam connecting rods, 6.125-inch length with 7/16-inch ARP 8740 bolts
• Mahle forged 2618 aluminum pistons with -20cc inverted dome design, 4.030-inch bore
• Plasma-moly file-fit piston rings by Hastings
• King XP performance rod and main bearings

This assembly is designed for internal balance and is compatible with LS2, LQ4, LQ9, LY6, and L76 engines with 72cc L92-style cylinder heads. The kit is sized at 0.030-inch overbore (4.030-inch bore) and creates a displacement of 6.7L/408 cubic inches. This unbalanced assembly requires professional balancing by a qualified machine shop before installation. The 1-piece rear main seal design ensures compatibility with modern LS engine blocks.