Reproduction Small Block and Poly Engine-A-block flange bolt and gasket kit for the 90 degree oil filter adapter. This is the kit you will need for that missing or damaged flange bolt to install a 90 degree oil filter adapter on your engine for clearance purposes. The bolt in this kit is made stronger than the factory type which was susceptible to twisting and damage from getting tightened too tight. The 90 degree adapter is NOT included in this kit. Made to higher than OEM standards for quality and fit. Keyword right angle.