Also, the RB is definitely an interference engine. If a timing belt or chain snaps, the valves can get into connection with the pistons, resulting in catastrophic engine harm.However, The 2 are rather comparable, along with the RB25 is de facto no slouch. You can visualize the RB25 vs the RB26 as similar to the 1JZ vs 2JZ debate. The RB25/1JZ are a