General Motors Allison 250-C20, B, F, J 1989 Maintenance & Operation Manual (PUB.#10W2) by General Motors Engines Sale $80.00 | / SKU 6943:R Printed Manual - $80.00 Download - $80.00 Printed Manual Download Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Turboshaft Gas Turbine