7/8" BORE VS 3/4" BORE USED ON 62-65 SPRITES AND MIDGETS. JUST REMOVE THE FLAT COVER USED ON THE 1500 MGA'S AND INSTALL YOUR TALLER COVER. 100% THE EXACT PART FOR ALL YEARS MGA. YOU CAN USE IT ON THE LATER SPRITES AND MIDGETS THAT USED THE 3/4" BORE BUT YOU'LL HAVE TO LENGTHEN THE PUSH RODS ON THOSE CARS FROM 3 11/16" TO 4 1/8".
