Spec II classsic pipes-exhaust spring length

[rdsarefun]

Was wondering if anyone knew offhand the length of the exhaust springs that attached the chamber to the flange?  I measured the inside dimension of hooks on the chambers and the flange  and it came out to 60.07 mm, was wondering if a 55 mm spring would be too much of a stretch (don't want to pull off a tab) and thought that a 58mm would not be enough.  Any thoughts would be appreciated.  Thanks

[2 Smoker]

As a youth we sometimes used springs way to short( within reason) than stock and fought like hell to install, but never had a break on the spring stays manifold or exhaust,not saying all welds hold but as long as you have tension you should be fine.

[m in sc]

1/4 inch, is sort of a rule of thumb for me as a min