BMW N54 N55 S55 Conical spring kit SPR-FE20-BE(24)
75lbs @ 36.5mm – Rate: 8lbs/mm – CB @ 13.3mm lift – Max lift: 12mm – Intake RET-BMN54/TI (12) – Exhaust RET-BMN54/TE (12) – Use with Factory valve stem Seal
Conical Valve Spring Kit
OutSpr.OD: 24.4mm
OutSpr.ID: 17.6mm
InnSpr.OD: 21mm
InnSpr.ID: 14.2mm
Press.Seat: 75@36.5
Press.Open: 155@10
Max Lift: 12mm
Coil Bind: 23.2mm
Rate: 8ibs/mm
Retainer: RET-BMN54-TI (5mm)
Retainer: RET-BMN54-TE (6mm)
Engines
BMW – 3.0l Turbo N54B30A
BMW – 6cyl 3.0l Turbo N54B30A
BMW – 6cyl 3.0l Turbo N54B30A