BMW S50 S52 (USA) M50 M52 M54 Supertech valve spring set SPRK-H1005D-BM

Spring data:

Seat pressure - 94lbs @ 35.70mm
Open (lift) pressure - 209lbs @ 10mm
Spring coil bind - 20.70mm
Rate - 11.50lbs/mm
Max lift - 15.00mm
Outer spring outer diameter: 29.65mm
Outer spring inner diameter: 21.85mm
Inner spring outer diameter: 20.50mm
Inner spring inner diameter: 15.50mm

Set includes:

Dual springs: 24 pcs. SPR-H1005D-BM
Titanium retainers: 24 pcs. RET-AU5VE-T1
Seats: 24 pcs. SEAT-BM60