Quote Originally Posted by 429bigblock
wich should i buy an rb 25 or 26, i just have enough for a 26 but if i got a 25 id have money left over, how much custom mounting would be necessary, any info about installation like if its just an insane amount easier for 25 or its the same and wat would i have to get for it to sit right in an 89 290sx
isnt the only difference in the 25 and 26 motor the bore?
i thought they were physically the same but just a bore and of course tranny difference.