First I know there have been several 273 rebuild discussions here and I've learned a lot already reading through toolmanmike's build and others. Most of what I've found are builds of a 273 two barrel, or have a lot of technical information that I don't really understand. I already have the commando engine, and since I'm paying labor having all the parts I need when the car goes to my mechanic is very helpful. Here is the backdrop:
1965 Barracuda, 273 commando, original engine, the car has been sitting for possibly up to 32 years. Last known registration was 1992 in Texas. Wish to keep the car as original as possible while refreshing the motor, maybe adding 25-30 Hp while doing it wouldn't be a bad thing! Compression on 1&3 was around 60 psi, so I stopped there. Mechanic says this isn't a sure sign it's needing rebuilt, since over time the oil will be pushed out of the cylinders and until those are filled again compression will be low. Freeze plugs are shot, the ones I can see along the bottom of the block are all gone except for one. So while the engine is out for freeze plugs what are the must do things, optional things, and stick with what you have things?