>Will a Triumph Spitfire motor swap in without a major problem? If
>so, what years will work and what modifications need to be
Spitfire motors from 1963 to 1966 (spitfire mk1 & 2) will bolt
right in with no changes necessary to any amphi parts, other than
possibly the distributor. The spits use a delco distributor while
the herald/amphi used a lucas unit. Also, with twin carbs there
might be some minor clearance problems with the exhaust, but
should be doable.
The spitfire mk3 thru 1500 engines will work but the intake and
exhaust ports are somewhat different and you won't be able to just
bolt the original exhaust unit up to the engine. The original
spit/herald/amphi motor is 1147 where the mk3 and early mk4
engines were 1300 and the 1500 cars had 1500 engines.
I have heard there are people who have put the later engines in an
amphi but I don't know the specifics. I'm not sure if the oil
drain plug lines up properly (I bet it does) with the bilge plug.
I'm also not sure what carb arrangement was used on the spitfire
to amphi conversions. If you were to install a spit motor, using
the twin SU carbs supplied on many spitfires you'll see a lot more
power. From what I could determine, looking at our amphi engine
and the exhaust pipe arrangement it sure looks like twin carbs
will fit although the exhaust pipe mounting might have to be
changed slightly. Hope this helps.