Eagle 11111100 Competition Rotating Assembly Big Block Chevy Bore Stroke - 505ci 4.350 4.250

The Eagle 11111100 Competition Rotating Assembly is engineered for high-performance big block Chevrolet engines, delivering 8.3L/505 cubic inch displacement with a 4.350-inch bore and 4.250-inch stroke. This complete rotating assembly kit provides everything needed to build a powerful and reliable engine foundation.

Complete Assembly Includes:

• Forged 4340 steel crankshaft with internal balance
• Forged 4340 steel H-beam connecting rods with 6.385-inch center-to-center length
• Forged aluminum pistons with flat top design and single valve relief, featuring +3.00cc head volume
• Plasmamoly piston rings
• Rod and main bearings from King or Clevite

Key Specifications:

• 4.350-inch bore (0.100-inch oversize pistons)
• 4.250-inch stroke
• Floating wrist pin design
• 1-piece rear main seal style
• Assembly sold unbalanced

This competition-grade rotating assembly is ideal for serious performance builds where strength and reliability are paramount. Minor clearancing of the block is required for proper fitment. Perfect for street/strip applications, forced induction, or naturally aspirated performance engines.