My dashboard design is along the lines of the classic 427 S/C configuration. However, as my Euro has the [supplied] Vauxhall steering column, replete with stalks that do what stalks do and a huge shiny shroud, I've slimmed down what actually goes on the dash and moved a couple of things around a bit.
Not quite there yet..!
And this mock-up will no doubt be tweaked many times before I actually drill any holes
The first thing was to make the dash' blank fit the car and I needed to use fixings that didn't show. So I went for the CBS Big Head Fixings. These are excellent for this type of application and it was a simple task of glassing and rosining them to the backside of the dash blank. Now I have to repair the holes I made before I discovered these very useful devices. My original plan was for padding and ground down bolt heads (I'll blame Mark Evans in his DVD "A Car is Born" for that one)... But it is and excellent video for general stuff... So it's Plan B is for me.
Just need to remove the protective tape on the threads and job dun'..!
I pondered for ages on how to fix the dashboard in place and be able to get to things behind it without having to go through a veritable puzzle box of access-enabling procedures. Also, as I'm not comfortable drilling and rivnutting or tapping into the steering column cross-member I welded a couple of steel tabs to each side to take a couple of tapped M5's. Essentially the side bottom plates slot into the dash lip and are bolted from below. Details of this modification are in the Ironwork article.
The next thing was to make a uniform gap between the top of the dash and the lower lip of the scuttle top. This runs along the whole length of the dash blank and is necessary to allow for neat positioning of the leather piping.
Dropped the bottom dash' retaining rail down a bit to make sure the dash' blank fitted flat and square along the top edge, then rechecked for the centre point. Got a couple of bricks and a piece of wood to simulate the seat and temporarily fitted the steering-wheel and boss. Then I fixed the gauges and switches [cardboard blanks] to the dash in their approximate positions. This to make sure I could see them through the wheel etc. Then I removed the dash' blank [for the umpteenth time] and measured up properly before drilling the holes.
Refitted the dash' and correctly positioned the lower cross-rail, and secured the steering column cross-member to the tunnel with a couple of bolts and a few spacer washers. Then I tightening up the windscreen retaining bolts.
The two outermost holes on the dashboard are for the heated seat switches; didn't want these getting in the way of the good stuff or cluttering things up.
I will also be fitting a couple of 12v accessory USB's underneath the dashboard so they are out of sight and an additional accessory outlet probably in the boot. I also have a couple of LED footwell lights to fit, but not ready to fit those yet.
Had an issue [a concern really] with the securing method of the light and fan switches. This was because the retaining nuts would have loosened [over time] due to the natural 'turning' pressure exerted during repeated normal use. So to counter this I stuck a couple of angle brackets at each side of the switch bodies to securely hold them in place.
I also made a wire retaining post to tie-wrap the ignition button wires to. Don't want these popping off through vibration or when removing the dash'. The spade connectors on the starter button are quite small so it wouldn't take much to dislodge them.
Getting there... The Speedhut dials look great.