You may want to ask that question on nissansilvia.com as I remember reading on there that someone had installed the Skyline radiator into their Silvia.
Matty

Can anyone tel me if a radiator out of a r33 skyline is the same as a silvia one. they look the same but i dont know their exact measurements.

mate i got a s14 sr radiator (alloy) and i had 2 hav the bottom outlet cut off and moved up now it fits sweet ill post a pic 4 ya. . . Picture posted look in photo album champ

phat_dat1200 - Yep that's exactly what mine does.
Matty

i dont have any problems with mine it usually sits at about 80 and in traffic on a hot day never goes over 100.

Mine gets hot when sitting at the lights or in slow moving traffic during the Summer months.
I have a Silvia radiator (bought brand new), twin 10" thermo fans and an oil cooler.


I have just purchased twin 12" thermos as I believe the 10's just can't pull enough air through the core at low speeds. If this isn't enough I will also buy a bigger single core radiator.

Matty

do any of you run hot with single core radiators? Ive got single cored camry radiator that takes whole front up and still hits 100+ degrees C, twin thermos too. Cores in excellent condition? Yea tons of room under the bonnet, good to have it high so cap high and no air pockets.

my rad sits 50-60mm higher than the rad support and still does not hit the bonnet. it is mounted back about 50mm too. you will be surprised how much room is under the bonnet

you'll find its not too high on my motor the rocker cover is level with my cap. and the bonnet clears with room to play.

i was going to do it just like how you have it in your pic but it looked like it was to high wit the cap on so i was thinking i could mount it under the top bonart brase to make more room for working on motor ....