Also, the RB is definitely an interference engine. If a timing belt or chain snaps, the valves can go into contact with the pistons, causing catastrophic engine injury. Even though the Formal quoted electrical power of your RB26 was 276bhp, it’s usually been acknowledged they built much more like 300bhp. https://rb26-motor03777.theisblog.com/28438943/the-rb26-engine-for-sale-diaries