Thread: Engine capacity

Originally Posted by BigJon

Hence my comment that it is probably an aftermarket stroker crank.

I am going to rebuild my 3.5 using one of them.

Thanks mate, the Rangie goes a lot harder than the Disco with a 3.5 . The Disco is a manual so if the Rangie is only a 3.5 than maybe its the auto that seems to make it go harder. Bob

The factory 4.2 litre engines have an engine number of the type 40DXXXX1.
These engines were built from 1994 till 1996.

The factory 4.2 used a 3.9 block, fitted with a different crank. Connecting rods were the same as those fitted to the 3.9 , but pistons were different.

Does your engine have the crankshaft driven oil pump?

What is your engine number? You will find it adjacent to the dip stick.

Ron.

Originally Posted by bob h

Thanks Harro, much better info than on the previous link. Any links on deciphering the eng no. Bob

All Rover V8 Engine Numbers

harro,

The link to "The Rover V8 engine numbers" ....that list is actually incomplete.

There are quite a number of factory RV8 engines which are not listed.

Ron.

After all the bum steer's your getting...

The original question...

It may be a Vitesse 4.2
They commonly were painted red with Red rocker covers.
They had a Motec computer.

And to find out the capacity of your engine.
Remove a spark plug, wind it up to TDC. then measure the distance from the plug hole to your measuring device..... cable tie is good... and a whte one so you can draw a texta mark on it.
Then drop it to BDC and measure it.... then take the distance from the to lines you just drew on the cable tie and that is the stroke.
From the engine number you can determine if it was originally a 3.5, 3.9 or what ever....
Then if the Stroke is larger then 71.1mm then its not a 3.5 or 3.9

Easy hey.....