Bugzilla - Mid Engine Madness

[Bugzilla]

Alright guys, instead of handing out candy last night, I decided to take a further look in to my engine. I am pretty sure I found out what happened. It looks like the valves springs are going to be the cause of a blown motor. Who would have guessed... Since my engine is a DOHC, there is literally no room for valve springs. The valve springs I used are about .250" wider in diameter then a stock spring. I did not assemble my head so that is why I did not catch this. I left the entire assembly, porting and setup to the place that ported my head. I assumed everything was checked and clearanced as needed. Guess not. It looks like the springs were rubbing so bad that it actually, very slightly, bent the valves. This is the reason why the valves rubbed the tops of the cylinder sleeves as well. All the aluminum I found in the engine now makes sense. It came from the head because of the springs. Great. So now not only do I get to buy new springs, but I also get to get new valves and guides. There goes my cheap rebuild. So far the only parts I can salvage are the cams, bare head, 3 rods and all the little timing components.

Lesson learned. Double check everything even if it was done by a professional shop, especially when you are using custom parts.