BKC1
Seasoned Member
I bought the ZZP LF3/LF4 valve spring kit for testing. I measured them against the Mace springs using a valve spring micrometer. They've never been installed or run in an engine.
There's nothing wrong with the ZZP kit; eventually I want to run a custom camshaft kit and wanted better data than ZZP or Mace provided.
The Mace springs have a higher rate than ZZP, so your valvetrain losses will increase but in return valvetrain stability is higher.
The ZZP kit goes for $500. I'm asking $375 OBO shipped, via Paypal G&S. Manufacturer link:
I'll upload pics later today.
There's nothing wrong with the ZZP kit; eventually I want to run a custom camshaft kit and wanted better data than ZZP or Mace provided.
The Mace springs have a higher rate than ZZP, so your valvetrain losses will increase but in return valvetrain stability is higher.
The ZZP kit goes for $500. I'm asking $375 OBO shipped, via Paypal G&S. Manufacturer link:
I'll upload pics later today.
