hey i have given in as i blew the head gasket on the original engine and i dont want to use my crate engine. 

looking to buy a 1200 from a 81 210 a12a.  pics look good come with blown 4 speed and a new clutch, i got a pic and noticed some differences. alt on opposite side can prob change that over. and where the coolent hose goes by the valve. would this be a good engine to get or should i go for and older a12? my main concern is i the trans will bolt up from the a10. and the motor mounts are not in the same spot. has any one done this gen engine before?

right on ill be getting it friday.

thats your car right? thats what i want to do to mine and be able to put it back to stock.

is it a different trans? if so i wont get it as the trans is blown. and i dont have nomey to get a new one.

ok so change of plans im going to go with a a14 and ill get a 4spd or a 5spd is there any other probs with ththe a14 or they the same as the a12. 
im the a14 is rebuilt with a crane cam, header and stock intake.

The A14 should be good, although you may want to start thinking about
upgrading your brakes as well, seeing as you'll be putting something in with a
fair bit more power.

You would laso need to consider upgrading the rear axle assembly as it isn't rated for the power output of an a14 especially if it's running a cam, dizzie, carb(s). Unless you are a granny driver you'll be ok but what then is the point of the mildly worked A14.

When I put the race engine in mine I decided that keeping the 12inch rims was a good idea and that if the engine was going to break anything it would be traction. The diff centre then broke and basically ate itself. So unless you are prepared to buy some spare 1200 coupe centre's from the US you might want to consider the upgrade now as once you bugger that alloy H145 you'll have great difficulty finding one in your neck of the woods.

The headers on the A14 will most probably foul with the firewall or engine
mounts so keep that in mind when considering whether it is worth paying the
money or whether it'll just become a costly shelf ornament. Some people have
been lucky where they have managed to clear it with minor mods.

 

5 Speed requires a modified gb cross member. I think you might be in luck
with a hydraulic clutch setup as you may not have to modify the tunnel to
accept the clutch fork.

 

Your reverse witch may also be difficult to fit to the gearbox as clearance
is limited.

 

Your tail shaft will have to be shortened, I cut mine down by 20mm. I did
have it installed at original length for a while but it was so tight that I had
to drop the nose of the gearbox to allow the tail shaft to be removed. The
un-shortened tail shaft can be problematic for the seal at the back/nose of the
gearbox.

Sure, otherwise you can just use the 1200 H145 Steel Housing centre in your rear axle. Another option is to upgrade to a H150 centre, these fit into the housing with some very minor modifications and they have a higher torque rating so they will take a bit more thrashing. You'll need a conversion spacer to have things running true but you can install it without.

USD600 for a running A14 with cam and headers is an okay price. I think an A14 and 5 speed with the 3.7 or 3.9 ratio H150 diff centre will make a really good drive.

Good luck.