g'day, i was wondering if anyone knows of an easy rotor/caliper upgrade for the sunny struts with the small squarish brake pads???

Yes, some B210s and B310s have a rectangular pad, which is nearly the same but larger. I would think this is the easiest swap (caliper & pad swap).

thanks for the starter, are b310's sunnys in aust?? and if so any idea on on what years the "bigger" calipers came out on?

Stanza struts would be the easiest
but there are heaps of options it just depends on what you want to do with your car

i've looked at the stanza front end, control arms and all, looks like a much better option, the only thing i'm not sure of is the springs....are they the same diameter 1200 to stanza????

Both are 4" springs. Also stanza struts allow the 270mm 240Z brake upgrade with sumitomo calipers. These will stop you very well even in race applications if using 13" - 14" rims.

hey boofhead, stanza struts are the go, you need to get shortened stanza springs as both the stock 1200 and stanza ones will leaving you pointing skyward,

check my www below for a description of the conversion, in the modifications section

i Used lowered 1200 springs (king) with my stanza struts they worked well...

stanza front end it is then!!!!!!!
just needed to check diameter so i can re-use the lowered springs i've already got.
i guess the brake cylinder will need to be upgraded to twin......is the stanza one worthgetting at the same time.
and will the rear brake cylinders need to be changed....dodgeman said something in another post about changing them to keep the balance right...?
'edit' 1200rc checked your www thanks sounds like an easy swap!
still wondering about the rear cylinders but...?

Just to be complete, the larger brake pads were fitted to:

US models
1976-1982 200SX
1977-1979 610 (P610)
1976-1978 B-210 (B210)
1979-1982 210 (B310)

These are more rectangular than square, but otherwise look nearly identical to the B110 brake pads.