Uprated Valve Springs & Valve Caps

Our uprated valve springs can be used with standard or sports camshafts. Our full race springs are designed for maximum rpm where valve control is required to maintain correct cam profile/contact. The specification of these valve springs is unique to Moss. The primary spring is uprated and does most of the work and a look at the specifications of various springs in use, see page 91 in the restoration section, will show TT1207 load up the camshaft and rocker gear little different to standard springs. They work in a different way, producing an uprated spring which is compatible with all performance camshafts using standard rocker ratio and valve caps, and are extremely versatile. All these springs must be fitted with our aluminium valve caps. Our fast road valve springs are specially designed to our own requirements, so they are suitable for all our performance profile camshafts using standard rocker ratio, and our TT1216 alloy valve caps. The sprint/competition valve springs are similar to our fast road springs, but with stronger outer springs for use with any performance profile up to 9000 rpm with a maximum valve lift of 0.495. Use with our TT1216 alloy valve caps.