The rb25 and 26s have: 3 more crank bearings/journels more rigid block can handle higher revs Cools easier Smaller in width compared to the VGs allowing more options with turbos. Better flowing stock exhaust manifoldsThe VG30s give you a shorter engine in length and height (except for the tall intake manifolds) Lots more tourque because of larger pistons A growling deeper exhaust sound the VG20s give you less of everythin...
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