PAC Racing Springs 8 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Titanium (Set of 16) PAC-L8123-16 Air Conditioning Fittings & Hose Ends the Pro-Fit provides superior softness

the Pro-Fit provides superior softness and stretchability

Superior To Stock Replacement Rubber Mounts

Helps reduce coolant temperatures

Hi Flow IAC passages for large cubic inch engines for idle stability

PAC Racing Springs 8 Degree Valve Lock - 5/16 in Valve Stem - Standard Height - Titanium (Set of 16) PAC-L8123-16 Air Conditioning Fittings & Hose Ends the Pro-Fit provides superior softnessProduct Description: Valve Lock 8 Degree 5 16 in Valve Stem Standard Height Titanium Natural 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 methods.