s/s crush tubes

[Richard Dryden]

Does anyone have the dimensions of these in particular the length as I don't have the book handy, many thanks

[Talonmotorsport]

You'll need 303 grade stainless any thing other than this you will have trouble drilling it even with a decent lathe.
3/4" -19mm OD
12mm ID
44mm long

[Richard Dryden]

That's great thanks