Cummins 4BT – Piston Grading For ‘94 Automotive Applications Only
When rebuilding an engine with the original cylinder block, crankshaft, and pistons, make sure the pistons are in stalled in the original cylinder. If replacing the piston(s), make sure the replacement piston(s) are the same grade as the original piston. If a new cylinder block or crankshaft is used, the piston grading procedure Must be… Read More »