Massive Speed System Massive Premium Timing Idlers (Zetec / SVT Motor) MACM-16021.1

Description:

Billet Aluminum base features more than double the surface area for increased resistance to deflection. Premium Gates sourced roller offers OEM+ reliability. A2 Stainless button head cap screw looks great and provides 7mm deeper thread engagement for increased clamp load and access to clean virgin threads, restoring life to previously abused tapped holes in the OE aluminum head.Available in OEM diameter and exclusive oversizes to take up slack created by head "shaving" / material removal. Even basic.010" head skim cuts for squareness will effectively make your belt.020" too long! Save your high dollar motor from destruction due to excess belt slop!!! Quality made in house here in the USA!!!Available in. OEM 60mm Diameter for stock untouched block / head / head gasket. 64mm Oversized - Good for engines with.010"-.050" material removed from block / head / gasket. 70mm Oversized -Good for engines with.051"-.080" material removed from block / head / gasket - Requires some material removal for proper fit if using OE Focus front timing cover. Can be easily completed with dremel or die grinder tool.