This is a Heavy Duty Tri-Metal Rod Bearing Set for a Jaguar 2.4-4.2. These bearings are made from the same material as the Vandervell VP2 bearings, Cu 74.5%,Pb 21%,Sn 4.5% with an overlay of Pb 85%,Sn 12%,Cu 3% on Ni barrier. please use pull down menu to choose bearing size (+040 there is a $10 charge)