Pretty sure one of the ID plates has what engine size should be in the car stock, plus the engine number is on the side of the block, not that hard to look for...
AND if you were to work it or put a set of carbs on thats a dead give away...

Would they even know you did an engine swap?

I'm in Melbourne so Wade cams isn't too far away, plus there is crow cams that are fairly loc to me also. Both well known.
I'm running a single 45DCOE weber on the d1200 manifold that has had the flanges or whatever chopped and it's had the oval port Andes welded on, works ok little dodge but good enough till I buy a set of twins. I've choked the weber down a fair bit so that it worked on the a12.
I'm not sure how much has been taken off of the head as I brought it after someone had the ports polished with bigger valves and the head had previously been shaved so I only had it machined for a freshen (skimmed). I would talk to your mechanic for a better understanding of how much to take off, or have a chat to member bige. Also don't forgot my head is an h89 oval port head so it's different to the standard a12 round port one.
I didn't need to have my block surfaced as it had been hot tanked and was in good condition. before I brought it. I did have it honed though.

Where abouts are you located? What carb are you running, and dis you have to send the cam away or are you near them? Also how much did you take of the head, and did you ressurface the block too?

I'm on learners. It's nice knowing everythings fresh. Well a weber, mild cam and a fresh build with a slight skim off the head with make for a nice engine. Won't be a huge difference bit it'll be nice. Otherwise an oval port head ( h75 or h89) if u have the extra dosh.

Are you on your learners? Or p's? Ive got the late model :( and yeah, im not looking for any crazy power... Im just after a bit more.... And the piece of mind that everything in the engine is new.

If you have an early model a12 (dizzy at the front of the block) I have a mild cam, same as in my engine. I had this ground to a 240 wade cam (not sure of specs but I have them here...) an it's for an early block, turns out I was putting it into a late model block, no go lol. So I went and had another cam ground. I paid 120 to have the cam ground, make me an offer if you're interested. Cheers

Yeah I'm the same boat zakdat. That's why I built a hot, well mild a12 so that it had a bit more, and I would say I'm most definitely happy with it but I spent the same about on that when I could of had a fresh a14/15 with a set of carbs...
I agree with Estyre to a point. An a12 will not go as good as hard as an a14 or15 if you don't wanttospend the money on it... Look at sikynes turbo fuel injected a12 with the stock bottom end, NOW THAT THING GOES!!!!
Haven't read that thread closely but I'm pretty sure he's done most if not all of it himself...

Thanks guys, i cant do engine swaps because im on my learners. So a12 is the only option, until im 20yrs oldl.

Estyre, do you have any parts still?

Let's be honest here. My A12 just went 1200 km at 4500 RPM. So certainly they do "go".

But you are correct in that a stock A14 or early A15 will have more power than a modified A12.