SEALED POWER MAIN BEARINGS SBC .030 (Bi-metal aluminum alloy, A-Series) CAN & Tuning Cables - CAN & Tuning Cables Mazda RX7 Series 7-8

Mazda RX7 Series 7-8

1" Bore Master Cylinder

Backing Plates

Pedal Rod Extension and Clevis

Compatible hose: 100 Series Stainless Steel braid and 450 Series Lightweight Nylon braid

SEALED POWER MAIN BEARINGS SBC .030 (Bi-metal aluminum alloy, A-Series) CAN & Tuning Cables - CAN & Tuning Cables Mazda RX7 Series 7-8Sealed Power MA Series Main Bearings 4663MA30 Main Bearing Set, . 030 in. Over Size, Bi metal aluminum alloy, A Series, Sold as a set of 5. These Sealed Power MA Series main bearings can actually polish the journals on your crankshaft. That's because there's a small percentage of silicon mixed in with the aluminum and tin that make up the bearing surface alloy. The silicon is there for wear resistance, but its toughness actually smoothes the journals