Chev GM LSA 627 SV Outboard Crate Engine Supercharged 627HP # LSA-MARINEChev GM LSA 627 SV Outboard Crate Engine Supercharged 627HP # LSA MARINE Lingenfelter Ported Heads, LS9 Camshaft Specifications type supercharged, intercooled 6. 2L GM Gen IV small block, 900 V8 displacement 6,162cc (376ci) weight 497kg horsepower 627hp (at propeller) torque 813Nm bore x stroke 103. 25 x 92mm fuel system sequential fuel injection alternator 180 amps 12V (120A @ 1,000rpm) cooling system closed loop heat exchanged with twin impeller