Eagle 14138040 Ford 351 Windsor 408 Stroker Rotating Assembly Kit

The Eagle 14138040 is a high-performance rotating assembly kit designed to transform a Ford 351 Windsor engine into a powerful 408 cubic inch stroker motor. This unbalanced competition-grade kit is engineered for serious performance applications including racing engines, nitrous oxide systems, and forced induction setups.

Complete Rotating Assembly Includes:

• 4.000" stroke forged 4340 steel crankshaft with non-twist forging and .125" fillet radiuses
• 6.200" H-beam connecting rods constructed from premium materials
• 7/16" ARP 8740 rod bolts for maximum strength and reliability
• Forged 4032 aluminum ICON flat top pistons with -11cc dish and 4.040" bore
• Plasma-moly file-fit piston rings for optimal sealing
• King XP performance rod and main bearings

Key Features:

• Forged 4340 steel crankshaft features nitrided surface and micro-polished journals for superior durability
• H-beam rod design provides exceptional strength-to-weight ratio for high-RPM applications
• Premium bearing packages ensure reliable lubrication under extreme conditions
• Designed for 351C/SVO 2.750" main journal blocks
• Kit ships unbalanced - professional balancing recommended before installation

Eagle Specialty Products uses only certified steel and employs multi-stage heat treating, sonic testing, magna-fluxing, and x-ray inspection to ensure each component meets rigorous quality standards. This rotating assembly is ideal for builders seeking maximum performance and reliability without breaking the bank.

Note: This kit requires professional balancing with your flywheel/flexplate and harmonic balancer before installation. Chamfered or narrowed bearings are required due to the .125" fillet radiuses on the crankshaft.