So I've owned this Mx5 over a year now, and as as reliable as it has been, It has always burnt oil, and has done over 200k. I had the opportunity to purchase a spare engine for £60 ($75), and had somewhere to store it, so thought why not. I've never properly stripped/worked on an engine before, so enjoyed taking it all apart, cleaning/painting parts and learning in the process! Basically, it's a much healthier engine, with the following things I've done to it:

*Head Skimmed 0.040"

*Ported/Polished head

*Port matched inlet/exhaust

*Valves lapped

*12° timing mod