Piper Uprated Double Valve Spring Set

These Piper Double Valve Springs are a set of 16 uprated replacement inlet and exhaust valve springs that are recommended for use with any uprated camshaft installation where an engine will be exceeding the factory set upper rev-limit.

When building a high performance cylinder head, double valve springs can be used to provide more stable valve operation at high RPM (e.g. up to 8000rpm in the K-Series engine).

It is advised that Piper steel valve caps are used if you are fitting double valve springs.

Direct replacement double springs for use with Piper Cams