Trick Flow Valve Spring Upgrade for OEM heads, TFS-2500100
Performance cams need performance parts.
These kits include everything that you need to install a high performance cam. Designed to upgrade factory Ford 289-351W cast iron cylinder heads. Kit also includes valve seals and valve spring shims.
Performance cams need performance parts.
These kits include everything that you need to install a high performance cam. Designed to upgrade factory Ford 289-351W cast iron cylinder heads. Kit also includes valve seals and valve spring shims.
This kit contains higher rate valve springs and special retainers that will allow you to use a performance cam up to .542” lift on OEM cast iron heads without machining.
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