Using the wrong castingsWhen getting started on an engine rebuild, you might be tempted to take the first core that comes your way. This project will usually take at least a few full days of work to finish, so take your time at the outset and make sure you get castings that match your application and are as close as possible to the final specs you desire. This might mean waiting weeks for the right block and heads before starting your rebuild, but it's important to start with the proper foundation. If you want the stalwart 350-cubic-inch Chevy V8 to drop in your now-parked 1967 Chevy Camaro, don't settle for a 327 just because the nearest salvage yard has one. Finding the right castings at the beginning of your restoration will reduce the chances of having additional problems down the line. Also, finding an engine with a bore and stroke very close to the one you want will cut down on the amount of time and effort required to hone the cylinders to your desired specifications.If you're having trouble finding the castings you want locally, try searching online. On Car-part.com, you can search through thousands of used parts dealer inventories to find the exact engine you want, and many of those yards are willing to ship those used blocks and heads to your door. Working too fast and being disorganizedOnce the wrenching process begins, it's tempting to work as quickly as possible to get your engine humming again. However, it's better to be as deliberate and careful as possible, especially if you're somewhat new to rebuilding engines. One small mistake made in haste could mean you end up re-doing the entire project later and with much more at stake. Organization is also key. Start with a clean, uncluttered workspace and use a pen and pad to take notes and draw diagrams as you take your engine apart. Use cardboard boxes or a magnetic parts tray to store and organize the small parts. Labeling everything carefully as you go will help avoid the need to play guessing games during reassembly. Having a cell phone or digital camera close by will also help you catalog parts during the disassembly process. If you can, record the entire teardown and watch it when you're ready to begin putting your engine back together. You might just catch something that would have caused you lots of trouble further down the road — literally or figuratively.
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