difference between bc valve springs and crower

[Love2xlr8]

hey, i know that crower and brian crower are two different companies since brian separated and all but i am building my head and am deciding which springs i want to use. extreme psi has a sale on both with titanium retainers but i am curious which is the better one... the crowers go for 543$ retail and the bc only go for 235$ what is the reason for price difference? is it quality in general? or just different names?

 

[BogusSVO]

what are the specs for the crower? I know the BC springs.

you may find this info helpfull....

http://www.dsmtuners.com/forums/newbie-forum/341209-4g63t-valve-spring-info.html

 

[Clutch450]

I have the BC springs and retainers in my 6 bolt head. I have no complaints what so ever. The motor has seen 7600 with no problem. I would recommend these springs.
As for the difference I'm not too sure. Just putting in my opinion.

 

[Love2xlr8]

Brian crower springs
Spring Pressure:
BC1100 Seat: 1.500" @ 95 lbs / Open: 1.000" @ 235 lbs / Coil Bind: 0.910" (no machine work required)


i cant find the spring rate for crower...