Also, the RB is definitely an interference engine. If a timing belt or chain snaps, the valves can go into contact with the pistons, resulting in catastrophic engine hurt. Nonetheless, The 2 are quite equivalent, and the RB25 is really no slouch. You can imagine the RB25 vs the RB26 https://new-rb26dett-for-sale58945.idblogz.com/28728490/what-does-motor-rb26-mean