Manley rotating assembly for BBC 565 (4.250" stroke) is a matched rotating system engineered to deliver strength, balance and consistent performance under extreme RPM and cylinder pressures. It pairs precision-forged crankshafts with high-strength connecting rods and premium pistons to reduce friction and improve load handling. The package includes 4340 H-beam rods with 7/16 ARP 8740 (optional ARP 2000), 2618 forged pistons and a 4340 forged crank; supports about 900 hp with ARP 8740 or up to 1,500 hp with ARP 2000 and lists Ford 4.6L application.
Manley Rotating Assembly, BBC 565 4.250 STROKE/4.600/-3cc