Quote:
Originally Posted by fiedlerh
You can use a bushing if you want, and some people prefer to, but Pontiac used the 7109 ball bearing in every manual trans V8 application. Trouble is the 7109 bearing is not commonly used in industry anymore, so it is rather expensive. Some people have used the 6202 bearing, but the crank hole may need to be machined a bit deeper.
See: http://www.pontiacpower.org/PontiacCranks.htm
Agree a sintered iron bushing would get noisy once the oil cooks out. At least bronze will remain relatively quiet. |
Many people don't recommend a bearing, as they do not tolerate slight misalignment as well as a bronze bushing will. There is also the argument about the "moving parts" in a ball bearing. If one of the moving parts fails, the others quickly follow and you have a mess on your hands.
From the research I have done, I feel better with a bushing than I would with a bearing. Your mileage may vary.