Posted by Paul (in NY) on Wednesday, November 07, 2007 at 23:26:40 :
In Reply to: compression ratio on 93 cummins? posted by DoDgEBoY - MaDe in the USA on Wednesday, November 07, 2007 at 23:19:06 :
Cummins Shop Manual
Specifications
Page E-5
6B5.9 = 18.5:1
6BT5.9 = 17.5:1
6BTA5.9 = 16.5:1
Paul