Always Broke
Petty Officer 2nd Class
- Joined
- Jan 19, 2006
- Messages
- 162
Im in the middle of rebuilding my old 1973 motor and see that I have high compression pistons since they have a dome on them. I have no idea what the compression ratio is, I asked that question before on here and no one seemed to know. I guess I could do some CCing on the head and see what dome is on the piston to figure it out now that I have it apart... Im keeping the cam stock, and have a bit of a decision to make if I run high compression pistons so I can run the timing retarded or advanced to match the fuel Im using while running it retarded is it possible to run hot like a car would do with the timing retarded or since I will be using a raw water cooling system will it run cooler? Or should I go with the low compression pistons and take a chance on losing power, its rated at 165 HP now and I have a 2500# dry weight. Does anyone have one of these motors stock with low compression pistons, if so whats your horse power rating? Your opinions would be appreciated.