Product information "COMP Cams Guide Plate Olds 5/16"
Standard One-Piece, Non-Adjustable Guide Plates; Flat Style; No Machine Work Required w/ Part #4542-16 Stud; Single Piece Title: 4842-1 Guide Plate, Olds 5/16 Stud Diameter: 7/16" Push Rod Size: 5/16"