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Cryo is a cold process, liquid nitrogen... and mainly used in very high performance vehicles, adds strength and hardness to the alloy. I will be doing some work on the head in prep' for swap over. I'll keep the stock valves [ex = 24mm, inl't - 27.5mm] I'll do the following: enlarge the exhaust...

Update - I've been asking around far and wide. Most people say no. However it can be done. It is a heating / cooling process which I think is referred to as Precipitation hardening. It is quite expensive so it would no be viable in the ordinary run of things. Only really useful for very rare or...

Thank you. I'm continuing to look into this.

Over time I've acquired some spare heads for my '98 LR Freelander which has the MG Rover K series 1.8 mph engine. Yes they are all K series heads and are complete. One is a VVC head. The engine it was on had been overheated. I stripped it except for the valve seats. There are fire ring...

OK over time I've acquired some spare heads for my '98 LR Freelander which has the K series 1.8 mph engine. Yes they are all K series heads and are complete. One is a VVC head. The engine it was on had been overheated. I stripped it except for the valve seats. There are fire ring indentation...

Hello, I'm Alan and my moniker is HTR. As you can see I'm live in Southern New Zealand and I currently drive a Land Rover Freelander 1. It has the petrol MG Rover K series 1.8 mph motor [18K4F...]. In car interest terms I come from a British car back ground and for many years owned a selection...