Cummins N855 Big Cam engine specs and bolt tightening torques and manuals at Barrington Diesel Club. Basic specs are open to everyone and include images, displacement, dimensions and weight, key bolt tightening torques, the characteristics of the engine like its power and torque.Key bolt tightening torques are the main bearing cap bolt torques, the connecting rod cap bolt torques and the cylinder head bolt torques. Among the manuals and literature we have for this engine are various workshop manuals and spec sheets, and a specifications manual for the BigCam-4 engine. We provide engine specs, bolt torques, manuals and technical data for many makes and models of diesel engines.