Originally Posted by aaronkkn
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Top hat liners are a must to prevent the problem re-occurring. Otherwise if (when) the block cracks again there will be nothing to prevent coolant escaping into the combustion chamber. Better still is the Turner Engineering solution that uses a nifty little seal at the base of the liner effectively turning it into a wet liner situation. It can crack all it likes but the coolant cannot go anywhere up or down.
Last time I enquired here in Adelaide, Comp Engines said they charged around $12-1500 to do the job depending on liners availability (off shelf or custom) and for machine work only - they do not do engine reassembly. Lonsdale Workshops have also done quite a few - they use special sealing compund around base of liner and claim they have never had a problem with coolant going downwards - it gets sucked up by vacuum. They charge $1200 for machining work to fit top hat liners and had them in stock.
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