Uprated radiator or not?

[Another Peter]

Forgive what might be a daft question, but how would I know by looking at it whether my Stag has an uprated radiator?

Visually, how is an uprated one different from a standard one? Is it just a bigger size?

Regards

Peter

[V Mad]

The uprated ones are usually thicker front to back; note that fan clearance may also be reduced. Some of the uprated ones have an unusual pattern of tubes and fins which looks quite different from the original.
There was a massive eperiment done to find out which ones were best, and its worth a read; see Technical Reprints in the main SOC website members section.