if i reshell my e reg sierra cosworth and use a standard j reg sierra shell like a 2.0l ghia do i need to change the chassi numbers and vin plate if yes is this legal

 

If you change the chassis numbers and vin plate from your old car to another shell(second hand shell) then it's classed as a ringer and totally illegal

 

When you reshell, you will basically be insuring a 2.0 Ghia Sierra modified to Cossie Replica. The insurance company will probably crucify you on premiums. You can change the plate to yours (reg. transfer), but the vin will always be a Ghia, and will be worth £1000 tops, instead of £xxx.