Product Description
These are supplied in sets of 16ea only fit the TFS 150lb springs for TFS heads, PN TFS-16521-16/
Trick Flow® steel valve spring retainers are made from hardened 4140 chromoly steel for great performance characteristics and reliability. On top of that, they're black-oxide coated for corrosion protection and good looks. They install at standard height and there are versions available for single or double springs and 7 or 10 degree valve stem locks.
