NOT MINE!; English translation included below the french description; Aluminum top end. http://ottawa.kijiji.ca/c-cars-vehi...engine-engine-parts-MOTEUR-W0QQAdIdZ358370243 Date Listed 26-Feb-12 Last Edited 27-Feb-12 Price $6,500.00 Address Trois-Pistoles, QC, Canada View map Make Buick MOTEUR DE BUICK 455 STAGE 1 PER 30MM OVERSIZE AVEC CASTING: 1241735 DE L'ANNE 1972. TETES EN ALUMINIUM: 2.125 INTAKE ET 1.75 EXHAUST 3/8 BACK CUT STEMS DUAL VALVES SPRING. TA PERFORMANCE. 455 Buick Motor, Stage 1. 30 over with casting number 1241735 from 1972. Aluminum heads with 2.125int and 1.75 exh, 3/8" stem back cut valves , dual valve springs, TA performance.