Ignore all the above, engines are very strong compared to most out there. Mine has done 114k, I've done about 6 track days this year in it and mine has no squeaks or rattles. They make excellent track cars as standard. The only time they are weak is if they are modified on a budget as are most cars. Gearboxes admittedly can't take mega power but for the price of one, you will struggle to get better for your money. Chip and Porkie have modified ones and they both go well. The dephaser pulley is a costly part but is simply replaced with the cambelt, all it does is sound noisy when its getting on a bit.