Eagle 10907060 Street/Strip Rotating Assembly 8-Cylinder 3.750 Stroke 4.060 Bore

The Eagle Specialty Products 10907060 is a Street/Strip rotating assembly engineered for 8-cylinder engines, featuring a 3.750" cast steel crankshaft, 5.700" forged 5140 steel I-Beam connecting rods with 3/8" ARP 8740 capscrews, and hypereutectic flat-top pistons sized to a 4.060" bore. This complete kit also includes plasma-moly standard-gap piston rings and King SI rod and main bearings — everything needed for a reliable, performance-oriented bottom-end build.

Designed for engines producing under 500 horsepower, this assembly delivers an excellent balance of durability and value for street-driven performance builds and weekend strip use. The unbalanced assembly must be professionally balanced by a qualified machine shop prior to installation.

Kit Includes:

• Eagle cast steel crankshaft — 3.750" stroke
• Eagle SIR forged 5140 steel I-Beam connecting rods — 5.700" length with 3/8" ARP 8740 bolts
• Hypereutectic flat-top pistons — 4.060" bore
• Plasma-moly standard-gap piston rings
• King SI rod and main bearings

Key Specifications:

• Stroke: 3.750"
• Bore: 4.060"
• Rod Length: 5.700"
• Cylinder Count: 8
• Balance: Unbalanced (professional balancing required before installation)
• Seal Type: Compatible with applicable Chevy small block applications

Eagle Specialty Products is recognized as one of the largest aftermarket connecting rod manufacturers in the world, offering decades of proven performance for street, strip, and racing applications.