| Hi mate.
Welcome to MIG, plenty of people here to help with advice. You'll see many Nova topics discussed here too with pics & opinions etc. Ditch the text typing & spell correctly though...
A 2 ltr turbo lump will slot in on your existing mounts & shafts.
It is wise to have the shell strengthened due to the extra torque. You can get a plating kit that the old works rally Novas used. Weld that in & stitch weld all the major panel joins under the bonnet & fr end.
Panels like wings & doors are no longer stocked (NLS) at UK Vauxhall dealers now, so find some good patter panels from the likes of Hadrian panels etc or look for good 2nd hand genuine ones.
Roll cages can sourced from Roll centre, Safety Devices or Fabricage amongst others. They do pop up on ebay & the For Sale threads on here & pngclub.com.
Most issues with 2.0 turbo's in Novas are with space for intercoolers & pipework & as the wiring is a bit more complex than the XE, some minor niggles may appear at first. The exhaust will need to be mated to the turbo downpipe aswell.
Its all been done umpteen times in the past & you can search previous conversations on here by using the SEARCH/ADVANCED SEARCH function at the top of the page.
Maybe see the thread in here by THe SIMPS. His car is built with all pics.
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V8 blender FTW | 
