spec1 and 2 engines are internally the same so thats all you have to change over.
just wip out the spec 2 engine then transfer the coil packs, coilpack loom, throttle body, turbo and manifold ( if you dont have one on new engine) and possible the exhaust cam as late spec2 engines had a different drive on the cas
Yep. As above you should need to change the coil pack loom, coils and throttlebody. The rest should be exactly the same. If you were to have a VERY late R33 series 2 it will run a R34 cam angle sensor which will need rewiring but this is very rare.
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