Speedwell VA 52 Springs in a GT Head

[pigpen]

I know that the catalogue lists VA 50 single springs for use on a Speedwell GT head. Can I use the VA 52 double springs without concern? The plan is to use the head and Sprint kit on a bored 850 with a hotter (Maybe 997 Cooper) cam. I would like to also use Speedwell 1.5 ratio lifters. The head will need new guides and has been ported and polished.
Tom

[mascher]

Here is the information from the back of the package in case it helps:

Part No. VA.50 (Blue)
Single Springs for BMC Mini and other BMC 'A' Engines, 848 cc, 948 cc and 1098 cc.
Typical RPM: 6500 (Spring Loading 130 lbs)

Part No. VA.52 (Yellow/White)
Double Springs suitable fo BMC Minis, Austin and Moris 1100, and other BMC 'A' Engines, 948 cc, Mini Cooper 997 nad 998 cc.
Valve caps VA.60 are required to fit these springs.
Typical RPM: 7000 (Spring Loading 150 lbs)

Part No. VA.53 (Blue/White)
A heavy double Spring for 998 cc, Mini Coopers and BMC M.G. 1100 and other twin carburetter 1100 engines also Mini Cooper 'S'. Suitable for Speedwell Cast-Iron Cylinder Heads CH40/3, CH42/2 and CH42/3.
This is the strongest spring that should be used with the standard narrow lobe camshafts.
Typical RPM: 7500 (Spring Loading 170 lbs)

Kelley

[pigpen]

Hi Kelley...fancy bumping into you...
I got the same information from Mark's PDF copy of the Speedwell catalog. I'm trying to be mindful of the fragile nature of the alloy heads. It does list Mini and Cooper as individual entities, so I should be safe.
Thanks,
Tom