Trick Flow Specialties
Trick Flow Valve Spring Upgrade for OEM/GT40 iron heads, TFS-2500100
- SKU:
- TFS-2500100
- MPN:
- TFS-2500100
- Shipping:
- Calculated at Checkout
Description
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.
Seat pressure 118lb @ 1.8 install height, 358lb open pressure.
The spring kit we recommend when adding either the N41, N21, B31 or B21 camshafts on GT40 iron, or Stock E7 cylinder heads.
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