Ferrea 7 Degree Valve Spring Retainer - 0.885 in / 0.603 in OD Steps Single Spring 20601S This Fan-Thom II kit comes

This Fan-Thom II kit comes with a threaded thermostat that screws into the engine block or intake manifold for a professional looking installation

Harnesses do not include connections for the rear O2 sensors or fuel tank pressure sensor but are available separate

4-pole LS3 is built with bullet-proof durability

one for the Ford TFI systems and another for the GM Dual Connector Coils

Street / Drag Race

Ferrea 7 Degree Valve Spring Retainer - 0.885 in / 0.603 in OD Steps Single Spring 20601S This Fan-Thom II kit comesFerrea Single Spring Pro CNC 7 Deg Tool Steel Retainer Set of 16 Product Description: Valve Spring Retainer 7 Degree 0. 885 in 0. 603 in OD Steps Single Spring Steel Ferrea Racing Components are engineered to excellence! For the past 40 years, Ferrea Racing Components has been manufacturing hard core racing components for various types of engines in a wide range of categories worldwide. Ferrea uses the latest technological advances gained through the