When building a performance Air Cooled Volkswagen engine you always want to be sure to use quality wrist pin clips or these Teflon buttons , Teflon buttons are installed without the use of wrist pin clips, the head of the Teflon runs along the cylinder wall and prevents any possible failure of a wrist pin clip coming loose and damaging a piston and cylinder wall, we offer these for stock 1600cc Volkswagen engines as well as big bore performance VW engines up to 94mm piston kits
