16 valve gearbox to an 8 valve?

[Simpson]

ok so i have been searching for quite a whiel and cannot find anything which suggests replacing this on an 8 valve. My mate has a good 16 valve box from a d- reg valver, i was wondering whether to use his clutch and box on my 8 valve as my box is goosed? any ideas whether it is worth it? surely i would get better cruising fuel economy in fifth? as it would rev lower? cheers? 

[Agreeable Slick]

the 8v box is better cruising box. Nothing to say it cannot be done, but you will not gain anything from it.

[rubjonny]

It will fit fine, all you need is a 16v clutch kit and possibly a 16v flywheel although I'm 90% sure they are the same.
The only difference if its a 2y box is 5th gear is slightly shorter so you have higher revs when motorway cruising, and nthe input shaft is larger (which is why you need a 16v clutch kit)

[Simpson]

ah right i wont bother then, i thought it would be the other way round, cheers lads