Conical Spring Kit w/ Steel Retainers – BMW | S63B44

High-performance conical valve spring kit with steel retainers for BMW | S63B44, improving valve control, high-RPM stability, and durability.

Attributes
Spring Type	Conical Valve Spring
Seat Pressure	83lbs @ 35.70mm
Retainer Material	Steel

Specs
Outer Spring Od	24mm
Outer Spring Id	17.20mm
Inner Spring Od	21mm
Valve Seals	vsi-ec60e
Inner Spring Id	14.20mm
Valve Seals Qty	32
Seat Pressure	83lbs @ 35.70mm
Open Pressure	165lbs @ 10.00mm
Max Lift	11.20mm
Coil Bind	23mm
Safe Rpm Limit	8000
Retainer	ret-bmn54-te
Retainer Qty	32
Seat Locator	vsi-ec60e
Kit Spring	spr-fe20be
Rate	7.8lbs/mm
Kit Spring Qty	32