Originally Posted by
Chombi1
AFAIK, Stronglight V4 steel headset are very good headset, and are quite sought after. The high prices they sell for, NOS, kinda gives you a hint that this is the case.
The Stronglight V4 is a very good headset, but its unique bearing races make it very fussy about alignment.
Unless I was looking to build a period-correct restoration, I wouldn't go out of my way trying to source a V4 headset. If you're dead-set on Campagnolo, the Record Pista and Gran Sport headsets have a shorter stack than the Record Strada headsets and serve well where stack height is a limiting factor. And if affordability is a concern, the Tange "Levin" headsets are a good value with a reasonably small stack.