Guys does anyone know if a cosworth tunnel is different to a bog standard saphire tunnel. I need one for my mk1 cortina cosworth project but can't find a cossie shell that someone's cutting up cheers in advance. Stew

 

It's the same.

 

+1....the same

I know Burtons do a lot of pre-fab stuff.....do they not have something off the shelf you could use...even if you need to add some sheet to it?

If you are going 4wd I would also pre-cut and weld the hump for the chain (transfer case) to accept the Skyline box too as you may want to go big power and this would be a much cheaper route.

 

Cheers guys that's a big help just staying 2wd. I think that's enough for my skill level! I'll get a build thread posted up over the weekend stew

 

No, they are not all the same!

Early Sierra's have a smaller tunnel.

Some Sierra's don't have the 'bulge' area.

Later Sierra's you should be okay with.

Try and go for late model fitted with a 2wd MT75.

 

Will the gearbox not fit in the car as it is? I have a t5 fitted in my mk2 escort with a standard auto tunnel

 

Nah came with a type 9 in it which was a tight enough fit. T5 is hoooge compared to that! I think auto shells have a bigger tunnel