Brilliant, thanks so much!CR is governed by the piston crown. The heads will interchange. Both heads are the same, so it doesn't have to be a nearside head.
I have 2 heads from a 1994 3.9L, and they have 28cc chambers. Casting is hrc2479.
From memory JP, HRC2479 are the 10 bolt heads that Rover introduced for the P38 4.0 and 4.6 litre Range Rovers. The earlier Range Rovers had 14 bolt heads, but in 1994 the 3.9s also received the 10 bolt heads.
Ron
From memory JP, HRC2479 are the 10 bolt heads that Rover introduced for the P38 4.0 and 4.6 litre Range Rovers. The earlier Range Rovers had 14 bolt heads, but in 1994 the 3.9s also received the 10 bolt heads.
Ron