Quoted from the RTA NSW
Prohibited vehicles
The prohibited vehicle condition restricts provisional (P1 and P2) drivers from driving certain high performance vehicles. The condition applies to provisional licences issued on or after 11 July 2005. The scheme aims to prohibit young driver access to vehicles that are overrepresented in young driver crashes.
Prohibited vehicles are those with:
Eight or more cylinders (except diesel).
A turbocharged engine (except diesel).
A supercharged engine (except diesel).
Engine performance modifications that require an engineers' certificate.
Certain high performance six cylinder engine vehicles or other vehicles as described in the publication Novice Drivers - High Performance Vehicle Restrictions.
put that in your pipe and smoke it.
Technically a 16v requires only a blue slip i believe to change the associated engine number.
Using the same block (4a) and no significant increase in power is seen as an "owners certified modification" as long as all the factory emissions gear is retained.
Even better if you can show 41 4age AE86's were delivered.
So technically, if you can modify the engine, suspension (lowered springs) muffler ect, as long as its an owners certified mod in realation to this:
Owner-certified modifications
Owner-certified modifications are generally those modifications which were optional equipment to the vehicle concerned. Owner-certified modifications also include some non-standard modifications of a minor nature which do not affect the level of safety, strength, or reliability of vital systems such as brakes and steering. These modifications have little or no impact on the vehicle's level of compliance with the Australian Design Rules. The modified vehicle must be presented to an AUVIS or HVAIS. For more information, see Vehicle Standards.
and linked further to
Do I need an engineering signatory for minor modifications?
Vehicle modifications fall into three distinct categories:
‘Owner certified’ minor modifications which can be accepted for registration purposes without formal
certification.
‘Engineering signatory certified’ modified production vehicles.
‘Engineering signatory certified’ individually constructed vehicles.
Owners certified further clarified as:
Owner certified minor modifications are generally those modifications which were optional equipment for the vehicle
concerned. Owner certified modifications also include some non-standard modifications of a minor nature which do
not affect the level of safety, strength or reliability of vital systems such as brakes and steering. These modifications have
little or no impact upon the vehicle’s level of compliance with the Australian Design Rules.
Examples of minor (owner certified) modifications are:
Engine changes where the capacity increase is less than 15% above the maximum size engine available for the
vehicle (providing no major structural modifications are necessary and where noise and/or exhaust emission
ADRs apply, all standard equipment such as carburettors, exhaust systems, exhaust gas recirculating valves,
oxygen sensors and catalytic convertors relating to noise and emission control are retained and operate
correctly).
The fitting of a proprietary sunroof (if the modifications are of a minor nature only).
Fitting a ‘package’ available as optional equipment for the vehicle (eg front disc brakes, power steering, alternative
transmission and bucket or bench seats).
Additional lighting eg fog & driving lights.
Alternative wheels and tyres within the owner certified limits set by the Authority (see Vehicle Standards
Information Sheet No. 9 Guidelines for alternative wheels & tyres).
Fitting of handling enhancing suspension components such as roll stabiliser bars and up-rated shock absorbers.
Major modifications which fall outside the category of minor (owner certified) modifications require submission of
certification by an RTA recognised
Does the RTA require notification of the modifications?
All major modifications must be reported to the RTA. Minor modifications made to the motor vehicle or its
equipment which affect registration details must be reported to the RTA to ensure that accurate records are
maintained. These details include engine number, engine capacity/motive power/number of cylinders, body shape,
fittings, number of seating positions, unladen (tare) weight, gross vehicle mass, axle code, wheelbase & overall axle
space. If the unladen weight has changed, the owner must provide a weighbridge ticket for the vehicle in its new
configuration.
Modifications are reported to the RTA by obtaining an Adjustment of Records and a ‘blue slip’ from an
Authorised Unregistered Vehicle Inspection Station (AUVIS). For details of your nearest AUVIS contact the RTA’s
Customer Service Centre on 13 22 13.
The Adjustment of Records, blue slip and any engineering certificate are then presented at a Motor Registry. The
owners copy of the engineering certificate is stamped and endorsed by the RTA and must be kept in the vehicle.
This certificate must be presented to an authorised officer of the RTA or the police when requested.
To what extent can I modify my vehicle?
Engine modification
1. Original engine modified
Modifications to the original engine are permitted provided the following conditions are met:
�� Normal engine reconditioning within manufacturer’s limits is permitted;
�� Modifications must not affect compliance with any emission or noise related ADRs;
�� All emission control equipment must be retained and functional;
�� If the modifications result in a substantial increase in power, then the adequacy of other components to
carry the increased power (brake performance, vehicle controllability, suspension systems,
Please note that under no circumstances does it say that the engine your swapping to had to be available within Australia, just that it doesnt change the maximum AVAILABLE size for the car..... and since its the same size, your in like Flynn
Engine changes where the capacity increase is less than 15% above the maximum size engine available for the
vehicle
