Re: Boring out the 237 Packard 6

Posted by Ken_P On 2016/12/15 8:57:17

For a little background, I went 1/16 over because the only change between the block in '37 and '38 was the bore. Same casting, but they changed the bore from 3-7/16 to 3-1/2. I guess using the .060 logic, I could go 0.060 from 3-1/2". That should take the motor from 237 ci to 253 ci, or about a 7% increase. The goal is to make maximum power, just not sure if this would be worth it.