Shure do.... He used to work for all 4 X Four and Talked me out of buying one. He reckoned it was scary in his 2 door but he had reliability problems with it:( Over heating and the bottom end etc.
If I ever did something this stupid with Rover I'd use a X bolted bolted and webed block as a starting point. Then try to find some early alloy Buick 300heads for it rather than stuffing around porting and fitting larger valves in rover heads.
This is one reason why I have a Supercharger for my Rangie:twisted:
On torque I have no idea but be close high 400 nm or better at a guess.
The stinky wee little weasy stock Rover heads are a problem once you stoke out to 5 ltr.:mad:

