Re: Ping In 359 Engine

Posted by Don Shields On 2014/4/25 18:00:44

That's a very good question. I, for one, really don't know. I suspect that shaving or milling the combustion chambers might weaken the casting making it much more prone to cracking, especially with aluminum heads. I imagine those design engineers specified the casting thickness to be thick enough to withstand combustion pressures yet thin enough to permit adequate cooling. Changing their tolerances might not be a good idea. Thankfully I didn't encounter that problem with my convertible.