PAC Racing Springs 10 Degree Valve Lock - 3/8 in Valve Stem - Standard Height - Black Oxide (Set of 16) H769001 Many Ford vehicle models were

Many Ford vehicle models were originally equipped with a heater core flow restrictor located at either the original heater hose fitting in the factory intake or inline in the inlet heater hose which protects the heater core from damage

Arbor / Pilot

Fit's Hilborn

MCOM-T Series

1988-1989 Honda Civic

PAC Racing Springs 10 Degree Valve Lock - 3/8 in Valve Stem - Standard Height - Black Oxide (Set of 16) H769001 Many Ford vehicle models wereProduct Description: Valve Lock 10 Degree 3 8 in Valve Stem Standard Height Steel Black Oxide Set of 16 Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and increasing weight from traditional