ROVER V8 4.0

Author
Discussion

marsho

Original Poster:

152 posts

256 months

Saturday 22nd January 2005
quotequote all
Hope someone can shed some light on this as I cant get my head round it!.What would be the outcome of fitting 4.6 dished pistons to a standard 4.0 litre crank with 4.0 rods?.Would it be 4.0 litre low compression or a slight drop in compression or is it just not correct and feesible?.Would it end up suitable for a turbo setup?.As always any help or advise will be appreciated thanks.

stevieturbo

17,535 posts

254 months

Saturday 22nd January 2005
quotequote all
it would end up very very low compression by my estimates.

You would lose about 5mm compression height I think, which on such a large bore, would be a lot.

Why not just buy low compression 4.0 pistons. It would make a bit more sense.

Or I have a 4.6 block/crank/rods/ and low comp pistons.
Just needs 1 piston to make good again.