GM 6.5 engine block   Engine RPO Codes: L49, L56, L57, L65, LQM, and LQN.
Displacement: 6.5L / 397 cu in
Bore x Stroke: 4.06 x 3.82 (in.)
Block / Head: Cast iron / Cast iron
Aspiration: Turbocharged (Borg-Warner GM-X series) Also available naturally aspirated.
Valvetrain: OHV 2-V
Compression: GM Early 21.3:1, GM Late 20.3:1, AMG/GEP Marine 18:1
Injection: Indirect
Power / Torque (lowest): 180 hp (134 kW) @ 3,400 rpm / 360 lb·ft (488 N·m) @ 1,700 rpm
Power / Torque (highest): 315 hp (235 kW) @ 3,200 rpm / 530 lb·ft (719 N·m) @ 1,800 rpm
Max RPMs: 3,400   1) Deutz 413,513 series engine, Deutz 912.913 series engine, Deutz 1012,1013,1015 ,2012 series 2) Deutz D302 series ,TBD226 series,TBD 234 series, TBD 600 series, TBG 600 series 3) MTU 396TB series, 396SE Series 396TC/TB/TE series ,956 series 4) IVECO Cursor 9,NEF6, F1C engine 5) VM R425 DOHC,VM R428 DOHC,VM D704/D754 Series motor 6) Cummins M11,NT/NTA-855, KT/KTA/KTTA19,KT/KTA38, KTA/KTTA50, 4BT,6BT, C serials engine 7) engine spare parts 8) Nissan QD32T/TI engine 9) 4JA1,4BD1,6BD1 10) Lovol 1004 series and 1006 series 11) Pielstick PC2.2, 2.3, 2.4, 2.5, 2.6 PA6L-280, 12) Doosan P086TI and P086TI-1 13) GM6.5 engine