Manley 290860H SBC Rotating Assembly Stroke Flat Top Piston Kit - 355 3.480 4cc

The Manley 290860H is a complete rotating assembly kit engineered for Small Block Chevrolet (SBC) 355 cubic inch engine builds. Featuring a 3.480" stroke and -4cc flat top pistons, this kit provides the foundation for a high-performance street or race engine with precise compression tuning capability.

Key Features:

• 4340 forged steel crankshaft for exceptional strength and durability under high-load conditions
• H-beam forged steel connecting rods designed to handle demanding performance applications
• 2618 Platinum Series forged aluminum pistons with -4cc flat top design for dialing in compression ratio
• 3.480" stroke optimized for 355 CID Small Block Chevy displacement
• Premium chromoly wrist pins included for strength and reduced reciprocating mass
• Total Seal piston rings for superior sealing and reduced blow-by
• Clevite H-Series rod bearings and P/H-Series main bearings for reliable high-performance use
• ARP cap screws for secure, reliable rod bolt clamping

Manley rotating assemblies are precision-balanced and ready for high-horsepower SBC builds. The -4cc flat top piston design allows builders to achieve target compression ratios across a variety of cylinder head combinations, making the 290860H a versatile choice for street performance, circle track, and drag racing applications.