Quote:
Originally Posted by battle_240sx
i have a extra rb20det and i am getting the head redone and i need some help cause i want to use a rb25 block. i have looked everynight on the net and have not found any answers to my qustions. some say that it will just be like a rb25 without the vtc and others say its gonna be like a rb22 or 23. i just want to see what u guys think. thanks
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its not a bad idea if you want to experiment. but its just gonna be considered a rb25 with a rb20 head. so it will stay a 2.5 liter
to be honest i dont know what your results will be , but a rb20 head flows a little less then a rb25 head. for electrical install you're lucky, you wont have to change anything with your harness cause you are keeping your rb20 head.