Epic Motorsports High Lift Race Valve Spring Kit - M50, M52, M52TU, M54

Allows higher RPM and over-rev protection - with stock lifters!

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Price:
$1,084.99

This custom valve spring kit goes far beyond typical "performance" spring kits. Rather than double springs or springs that are much too stiff (and add increased resistance and wear because of it), these are a engineered solution.

Designed for use with the Epic Motorsports Race or Schrick high lift cams, this kit was designed with extensive Spintron testing. This ensures the springs apply the correct amount of pressure to keep the valves in contact with the cam lobes and valve seats, without any unnecessary brute force (less parasitic losses and wear/fatigue). This kit will allow the valvetrain to rev to 9,500 (only with Epic cams), but most engines will be bottom-end rev limited well below this level. We suggest a non-sustained maximum limit of 7,400 for S50 and 7,200 for S52 engines.

Kit includes valve springs, lower seats, and upper steel retainers. Titanium is not our preference because of its softness.

BMW Fitments:

3 Series
E36 (92-99) > 323ic
E36 (92-99) > 323is
E36 (92-99) > 325i
E36 (92-99) > 325ic
E36 (92-99) > 325is
E36 (92-99) > 328i
E36 (92-99) > 328ic
E36 (92-99) > 328is
E36 (92-99) > M3 (1995)
E36 (92-99) > M3 (96-99)
3 Series
E46 (99-05) > 323Ci
E46 (99-05) > 323i
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 328Ci
E46 (99-05) > 328i
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > 330xi
5 Series
E39 (97-03) > 525i
E39 (97-03) > 528i 97-98
E39 (97-03) > 528i 99-00
E39 (97-03) > 530i
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 2.3
E36/7 / E36/8 Z3 (96-02) > Z3 2.5
E36/7 / E36/8 Z3 (96-02) > Z3 2.8 97-98
E36/7 / E36/8 Z3 (96-02) > Z3 2.8 99-00
E36/7 / E36/8 Z3 (96-02) > Z3 3.0
E36/7 / E36/8 Z3 (96-02) > Z3 M - S52
Z Series
E85 / E86 Z4 (03-08) > Z4 2.5i M54
E85 / E86 Z4 (03-08) > Z4 3.0i M54
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