| Engine rebuild/upgrade project |
Subject: Engine rebuild/upgrade project by sliding on 2009/9/20 14:02:02 I've started several threads asking all sorts of questions about my engine rebuild, so I thought to open a new topic where I'll post all progress and pics. So here we go. As you know, after one hard start and revving the engine to almost 7k rpm, valves on the piston nr.8 broke (or probably first hit the piston and then broke) and destroyed the piston, bent the rod, destroyed cylinder wall......... This is what I first saw after removing SR lid  This are pics of destroyed head and broken piston   After seeing this, only thing left to do was to pull the engine and check for other damage and see what could be reused.  Here is the damage to the cylinder wall  First i was thinking about "sleeving" a block, but after closer inspection I've discovered cracks on cylinder wall that go all the way from the bottom to the top of cylinder. This means a different block is a must. I allready have a block that I planned to use for my 383 build, but I think that I'll use it for this engine now and wait for another block to come along for 383. And this is where I am now. I need to prepare all the parts that I bought (I'll post that later on) and take everything to the machine shop. While the block will be machined, I'll port the heads and the intake. Also I'll have to have crank checked if it's good to go with polishing only or if it'll need to be machined for oversized bearings. Crank will also need to be balanced because I'll use new rods and pistons. The work have just started, but I plan to do everything slowly and thoroughly. |
