Platinum Racing Products - Nissan SR20 Torque PlateBLACK, SILVER, GOLD, PURPLE NORMALLY STOCKED OTHER COLORS EXPECT 3 4 WEEKS LEAD TIME Our PRP torque plate is almost essential when boring and honing your block. Made from 6061 billet alloy especially designed and profiled to replicate head tensional dynamics. Its a fact that bores pull out if round when you torque your head down onto your block, more so if you run aftermarket bolts with more than OEM tension, you should be using a torque plate for