N55B30 S55B30

Part number 6B1584H-STD
ACL Race Series connecting rod bearings
BMW - 3.0 (N54B30, N55B30, S55B30)

Part number 6B1584HX-STD (+0.001" extra clearance)
ACL Race Series connecting rod bearings
BMW - 3.0 (N54B30, N55B30, S55B30)

Part number 6B1584H-0.25
ACL Race Series connecting rod bearings
BMW - 3.0 (N54B30, N55B30, S55B30)

Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.

The Super Alloy Engine valves represent the highest level of sophistication in valve technology. These valves are designed to handle the extreme heat requirements and punishment of today’s Nitro Fuels, Supercharged, Turbocharged, Nitrous Oxide, and Marine race motors.

• Clutch Disc Diameter (mm): 230
• Clutch Disc Spline Count: 26
• Clutch Disc Spline Diameter (mm): 35
• Torque (Nm): 1830
• Flywheel Step: +3.8mm
• Design: Twin Plate
• Stage: Multiplate - track use only
• Clamp Load: 1300Kg
• Recommended for: Motorsport
• Additional infotmation:
• Weight (kg): 18.65
• Xtreme Multi Kit-BMW M135i/335i (6 BOLT)

• Clutch Disc Diameter (mm): 230
• Clutch Disc Spline Count: 26
• Clutch Disc Spline Diameter (mm): 35
• Torque (Nm): 1830
• Flywheel Step: +3.8mm
• Design: Twin Plate
• Stage: Multiplate - track use only
• Clamp Load: 1300Kg
• Recommended for: Motorsport
• Additional infotmation:
• Weight (kg): 18.65

Product detailed specification
Bore size	84.00mm
Stroke	89.60mm
JE Pistons compression ratio (CR)	9.5:1
OEM compression ratio (CR)	10.2:1
Dome volume (CC)	-14.7cm3
Compression height (CH)	32.40mm
Pin diameter	22mm
Features	Accepts Turbo and Nitrous; FSR Coated skirt
Fits for	BMW - 3.0 24V Turbo (N55B30)