Our combination shim & bushing kit precisely fills the gap between the distributor flange and the manifold when using excessively milled heads and/or block.  It features a longer and larger diameter pilot; necessary for oversize distributor bore, which is common in most aftermarket manifolds.  Comes complete with shims & bushing, which raises distributor .125"; shims are 1 each of .030", .060", .090" nylon material. 

• Fits Chevy - small & big block
• Fills gap between distributor flange & manifold
• Features longer & larger diameter pilot
• Shims & bushing raising distributor .125"
• Includes 1 each (shim) of .030", .060", .090" (nylon)