Eagle 16129040 Street Strip Rotating Assembly Ford - 351W 410ci

The Eagle 16129040 Street & Strip Rotating Assembly is a complete engine rotating kit designed for Ford 351 Windsor performance builds. This assembly provides a solid foundation for engines producing up to 500 horsepower with a stroker configuration that increases displacement to 410 cubic inches.

Complete Assembly Includes:

• 4.000-inch cast steel crankshaft with improved fillet radiuses for enhanced strength
• 6.250-inch forged 5140 steel I-beam connecting rods
• 3/8-inch ARP 8740 chromoly capscrew bolts
• Forged 4032 aluminum Mahle pistons with -20cc inverted dome design, 4.040-inch bore
• Plasma-moly file-fit piston rings for excellent sealing and break-in
• King SI series rod and main bearings

Key Specifications:

• Stroke: 4.000 inches
• Displacement at 4.040-inch bore: 410 cubic inches
• Rod length: 6.250 inches
• Compression ratio varies by chamber size (58cc/64cc/72cc heads)
• Designed for internal balance configuration

This rotating assembly combines precision-balanced components with tight manufacturing tolerances to deliver reliable performance for street and strip applications. Professional machine shop balancing is recommended for optimal results. The assembly features quality materials throughout, including forged rods bushed for full-floating piston pins and a cast crankshaft that offers excellent durability for high-performance Windsor builds.