2000 or 2500 ?

[steve28]

Im not that up on the big saloon engines but how can you tell the difference between them just by looking at them ?

steve

[Andy Thompson]

Not really - only external difference is bigger front harmonic damper and deeper sump. Engine number should work (and is a pretty safe bet in 95+% of engines but you can build a 2500 out of most 2000 blocks. The very skinny early Mk2 2000 head 3.3" is unlikely to work on a 2.5 unless its is very trick so thats a pointer.

2.5 Engines can be suffixed CR MG, MK (Oz 2.5TC) , MN or MM + CC, CF, CP, CR (TR6)

2000 Engines are ME and ML + HC KC KD KE KF KG (GT6 Vitesse)

http://www.triumphspitfire.com/enginenumbers.html

[steve28]

I think the engine number starts with MM but will check tomorrow when its daylight.

steve

[twomanytriumphs]

Not sure if your asking for this much info, but the mk1 engines have the intake and exhaust manifold ports in a straight line. Not so sure on the later stuff, other than the 74 up TR6 engines have bigger ports spaced further apart I think. PI stuff might be different though.
Kyle

[Mike Stevens]

Mk1/Mk2 heads are easy to tell the difference. Mk1 has the manifold side stud/nuts below the manifold, Mk2 are above and visible between the manifold face and the rocker cover.

MM sounds like a facelift 2500 then. Actually, 2000 and 2500 engines sound different, but that is a bit subjective!

Cheers,
Mike.

[CAR]

Mk1/Mk2 heads are easy to tell the difference. Mk1 has the manifold side stud/nuts below the manifold, Mk2 are above and visible between the manifold face and the rocker cover.

MM sounds like a facelift 2500 then. Actually, 2000 and 2500 engines sound different, but that is a bit subjective!

Cheers,
Mike.

Mk1 has what looks like exposed pushrod tubes either side of the spark plugs too.

Colin.

[steve28]

this engine is in a car that ive got for spares recently, and it now ive found out its a p reg 2500 tc
there was no reg plates on it when i got it and the log book has been sent off as scrap,
it starts and runs but smokes so will want a strip down.