kivvygosh

Thanks for the reply! I guess changing the head isn't a 'simple' mod but I'd be happy to do it because it doesn't require any changes to the running gear, won't need any new engine mounts, etc. I've done it before on a Fiat - replaced with a Lancia head and got another 30-40hp, a lot better efficiency, and could use unleaded fuel rather than lead-replacement. If another head can't be put onto the standard block then I doubt I would bother - full engine transplants are a major job and can often end up with balance issues. I guess there are plenty of ways to get more power from an engine. Reading the forums today it appears that at least a 280zx is highly compatible with a 240z.

Hi all, I'm really interested in picking up a 240z/260z however I'm a little concerned about the performance, currently driving an r33 gtst. I know it's not too difficult to improve performance but I want to be able to do the work myself. A family member tells me that the head from an R31 skyline will fit straight onto the 240z/260z block. They go on to tell me that the head from my skyline will also fit. Now these are relatively cheap, I'd love to fit one to a datsun. Apparently the whole engine can be swapped over and everything is interchangeable. Anyway I am hoping to find out from the knowledgeable people here whether this is true - are the heads for these nissans easily swapable, could I put a r31 3.0L engine into the datsun, etc. It all sounds a bit too good to be true to me. Can anyone help me here?