New GM Speedway Double Valve Spring Set (4x4) Outer Spring Specifications: 39.5mm long 28.70mm outer diameter 21.20 inner diameter Inner Spring Specifications: 37.5mm long 21.50mm outer diameter 16.00mm inner diameter
The "Gm Double Valve Spring Set (4Ã4)" is ideal for individuals and racing vehicle owners interested in modifying their vehicles for Grasstrack or Speedway racing.
