The D within the engine code stands for twin overhead camshaft (DOHC). That is attained by fitting an RB25DE or RB26DETT cylinder head and or turbo to an ordinary RB30E/T block. The RB25DET is not really ordinarily used. Nonetheless, the two are rather equivalent, as well as RB25 is really https://nissan-skyline-rb2660481.bleepblogs.com/28729994/5-essential-elements-for-rb26-engine-for-sale