Valve spring kit B18/B20/B30 High Performance.
For B30, please order 1.5 sets

NOTE! Spring seat must be machined for larger diameter. Then use tool with part number 208-M and SL1435B.

Outer diameter 32 mm.
Inner diameter 22.5 mm.
Seat pressure 70 lbs (31.7 kg) at 42 mm height.
Open pressure 244 lbs (110.7 kg) at 30 mm height.
Minimum height 27 mm.