Big end bearing set
MG: MGB from October 1964 with 18GB, 18GD, 18GF, 18GG, 18GH, 18GJ, 18GK and 18V engines (Roadster from GHN3-48767 to GHN3-138360, GT from GHD3-71933 to GHD3-137795) - idendified by 5-main bearing engine
reinforced tri-metal bearing shells with +0.030" oversize - shaft diameter of the standard crankshaft: 1.876"
Tri-metal bearings from cast leaded bronze are renowned as the best material for high performance and heavy duty applications. The alloy is continuosly cast onto a steel strip, normally precision plated with a lead indium overlay. The lead content giving it exellent embeddability, conformability and good lubricity under inadequate lubrication conditions.Its unique properties ensure longer life engine, maoking ist one of the most reliable bearings in the world.