I am a rookie with this forum, so thanks for answering!!

As a proud owner of a 1989 xj40 3,6 Sovereign with a damaged cylinder head gasket, I am actually overhauling an other Engine with the aim of exchanging the two.

So, I have a 9DPAMA Block (early 3,6 ??) fitted with an eac7077 cylinder head (late 4,0 ??), furthermore I have got an eac4002 cylinderhead, which I have already restored a few years ago.

My question is whether I can fit the eac4002 head in the 9DPAMA Block without getting an trouble, maybe you guys have more insights.

Greetings, Boris from Bavaria

 

You will need a valve cover to match the 4.0 as there are 13 bolts securing it ...there may be other differences but can't think of any ...check that the cylinder bore of both engines are the same too.

On the other hand, why not check the head for level/get it machined and refit it?

 

The head gaskets are a known weak spot. just get the gasket kit and put it back together---

 

That's what I did last December, head was flat as a pancake and didn't mess with valves either. 300,000kms just around the corner, running sweet as a bird.