X2 isn’t a car, it is an engine thus you will not find evidence of what the engine is on the tags, with the exception of a body out of the Dandenong body plant. And HR X2 and 186S share the same engine number prefix, I think it was 186K.
I also don’t think that a 4spd was available with the X2 engine, only 186S and others after 186S production. Dr Terry will know for certain.

Edited by user Wednesday, 18 April 2018 5:33:08 PM(UTC)  | Reason: Not specified

Hi, I'm hoping someone can help me to identify what my car actually is.
I am lead to believe that is either a 66 or 67 HR Special with the X2 Option.
Optioned with 3 speed manual.
Engine Number: 186K162660
Body: HR225-4334-S
Trim: 510-E55
Paint: 585-9562
Firewall Plate: S069920

Any help would be greatly appreciated to tell me what I actually have.
Cheers
Dave.

Genuine X2 optioned HDs & HRs are often difficult to verify. As HK1837 has said, only Melbourne (Dandenong) cars get the option number for an X2 (or S) optioned car stamped on the build plate.

Firstly I think the 186K162700 changeover number is most likely spot on, as I have verified several vehicles in that narrow engine number range. So 186K162660 was in the very last batch of 186X2 engines built.

Interestingly I've verified 2 examples of HR 186X2 engines with Opel 4-speeds fitted from the factory. Both of these cars were in that same very late X2 engine number batch. This says to me that the Opel 4-speed box was ready to go on the production line a day or 2 before the 186S engine. Somebody must have been in the know to have ordered these, unless they were internal GM-H cars.

There aren't too many clues to identifying X2 & S engines cars. The only clues are that the 3-speed manual versions got a larger diameter (3-inch) tailshaft & also that the ammeter wiring was added in a particular method at the factory. Having said that, since the extra gauges were available as a kit with the factory add-on harness, a neatly fitted dealer job could lead you astray.

As always about the only reliable method of verification would be the existence of original dealer invoices & owner manuals etc.

The car mentioned in the first post sounds interesting. Obviously an HK/T/G engine block has been fitted in later years but an Opel 4-sp in what appears to be an an earlier (1966) HR X2 sounds a bit fishy. I would be checking to see if it has the correct original (blank) steering column & that the floor shift cut-out was done correctly.

Dr Terry.

Edited by user Friday, 20 April 2018 12:37:07 PM(UTC)  | Reason: Not specified

HR225 is just the Series+model code, just means HR Special Sedan. The 4334 signifies it is the 4334th of this model in HR out of the Pagewood (Sydney -S) body plant.

510 is the exterior paint.
E55 is the interior Trim.
585-9562 is the paint manufacturer's code for the refinish material.
S069920 is the PSN, in this case the 69920th vehicle out of the Pagewood Assembly plant since the start of HD (if I remember correctly). This is the cumulative vehicles out of Pagewood, so will include any other stuff they assembled in the timeframe since the sequence started like Chevrolet, Pontiac, Buick, Bedford, Vauxhall or whatever else may have been assembled there.

As I said the X2 engine is a mechanical option, just like disc brakes or an optional transmission thus does not appear on a HR body plate, no different to optioning a V8 in a HK, you have no idea off any of the ID plates what engine or gearbox was fitted to the car on a Pagewood vehicle. The equivalent to this HR is a Pagewood built and assembled HK Kingwood sedan, it could have any engine from a 161L to a 307/5litre and you have no way of knowing off the ID plates - you have to start looking for clues on the body to see what was there originally.

Edited by user Friday, 20 April 2018 1:55:27 PM(UTC)  | Reason: Error

I can't help you with 100% certainty on the paint and trim. I'm pretty sure 510 is Grecian White. E55 may be Casbah Red, but not sure if straight vinyl or with an insert. Someone else may be able to confirm.