hi all, much as the club sell hardened valves, i have it on good authority( from some well know land rover engine rebuilders, and my local machine shop with years of experience) that the valves are fine, it is the seats that degrade, that's why they call it valve seat recession, and why your question was hardened valve SEATS. So if you want a long term solution, especially if your engine is in bits, get hardened seats fitted, cost me 50 quid (for a 2l 4 cylinder) but i was having a re-bore and crank ground as well, so the bill went up by 50 above initial quote. Or just buy additive, i buy direct from castrol ( for other non converted vehicles) i looked at the fbhvc website and tried to work out the price per litre of fuel treated and came up with castrols valvemaster (or valvemaster plus if you want an octane boost) in boxes of 8 from memory, will add the website if i can remember the link, hope this late night waffle helps
p.s. the land rover engine is still in bits, as having already spent hundreds, the price of a new cam shaft and rockers nearly made me wish i'd used the engine as aboat anchor and put in something that has power and is efficient, like a perkins prima, but that's another matter.
happy landrovin
ozzy
