Reference: shspeed
Reference: shspeed
Valve springs "extra hard" for speeds over 6000 rpm. Set = 2 pieces.
Note: These feathers do not conform to any regulations and are intended for hobby purposes.
We recommend these valve springs only with tuned engines with wedge-proof valves and tuning camshaft!
For engines with original valves we recommend the valve springs no. 1662.
Reference: 1684
Reference: 1512
Reference: 1589
Reference: 3533
Reference: 1746
Reference: 1748