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gtr crankshaft conversion - Click HERE for Original Thread

180sxforthewin
Has anyone done this I know a guy in calgary that had one but pu it into a wall so his skyline is no more. Is it difficult, price?

180sxforthewin
Conversion on a 91 gtst type m

McFly
Your head is going to be restrictive.

If you just throw a rb26 crank and rods in you will only be at about 2.1 - 2.2 L

:dunno:


Now if you want to go budget build you can go rb26 crank and rods and 81mm 4agze pistons.
that will bring you up to about a 2.3L something;)


And if you want to go more wild but more expensive you pick up tomei 82mm pistons for the rb20 and run the rb26 crank and robs. For this you would be best off sleveing the block because a 2.5mm sleeve will be twice as strong as a 2.5mm cast iron block.


If you want to just be nuts and punch a hole through your piston walls you can get 83mm pistons made by testarossa in japan but that would leave you a mere 2mm piston walls:eek:

chris f
Why not just get a RB30???

180sxforthewin
Ya the guy in north calgary had an rb23 done by testerossa in Japan.

Godzilla
just make sure that your RB26 crank is newer than a '92?(don't quote me on that) because of the oil pump drive issues associated with them.

tokes
I believe he would want an R33 crankshaft or an R32 N1 crankshaft, so newer than 1994.

McFly
all 1993/02 and newer rb26's used the new version 1" oil pump drive.

Edit:
part number 12200-05U02




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