Are the manifolds etc the same on both??

Might not be exactly the same, but they are interchangable.

Is this linked to your carb problem?

Stu

[Edited on 15/2/09 by whitestu]

What needs to be changed to cobvert from silver top to black top?? Arnt the waterpumps different so you cant just fit a 1.8 one to turn the other way?

Dan

On the blacktop an idler pulley is needed to run the water pump the right way. It's easy to do though.

I think the engine mountings will fit, but not 100% sure.

Stu

[Edited on 15/2/09 by whitestu]

The alternator mount is different, the sumps are interchangable but the windage tray from the silvertop cannot be fitted to a black top without changing the main bearing studs.I modified the black top 2 part sump on mine , it needed a lot of ally cutting off and then the steel lower part was easy to shorten.
Paul.