VW VR6 2.8 2.9 12V Supertech valve spring and retainer kit SPRK-V2093-4-12

Spring data:
Seat pressure - 77lbs @ 33.00mm
Open (lift) pressure - 229lbs @ 12.00mm
Spring coil bind - 18.7/15.3mm
Max lift - 14.30mm
Rate - 12.70lbs/mm
Outer spring outer diameter - 30.40mm
Outer spring inner diameter - 23.20mm
Inner spring outer diameter - 21.90mm
Inner spring inner diameter - 16.50mm

Set includes:
Double springs - 12 pcs. SPR-V2093-4
Titanium retainers - 12 pcs. RET-021

Used with factory seats