http://books.google.com/books?id=gmSavy1RPxEC&pg=PA12&lpg=PA12&dq=rover+4.2+stroke&source=bl&ots=nf3u3rdwqX&sig=J1qi_Fd3wyhT7RyBbnk6fcxkdQE&hl=en&ei=pMEKSvXTGqLoMK-_rNAL&sa=X&oi=book_result&ct=result&resnum=4#PPA34,M1

Nix,

Yes it's a great book and I would recommend it to anyone contemplating building a performance Rover or Buick V8 it has a lot of information on the later 4.0 and 4.6 engines and explains the problems with the block cracking issues.

Kevin.

I second that!  I've got Hammill's book and David Hardcastle's "Tuning Rover V8 Engines" too, although I think Hammill's is the better of the two.  I also use Vizard's "How to Build & Modify Chevy Small-Block V8 Heads" and Rick Voegelin's "Engine Blueprinting" - both are very good.

Yeah,
I've been reading Hammil's book in parts on the net and it looks well worth it !

til now I have been using both Hardcastle's books.

also have Vizards book strangely enough.. which is more generally about V8's than Rovers.

Rod