1975 GM SBC 350cu 4-Bolt Main (contact info removed) H26 V0803TXA LS9 4-barrel

(contact info removed) 350 4-Bolt Main H26 Bore size:100.40mm / 3.9528" V0803TXA Suffix Code V: Assembly plant (Flint Engine Plant, Flint, Michigan) 0803: Assembly date (August 3); this aligns perfectly, as assembly took place the day after the casting date mentioned above (August 2). TXA: Suffix code (engine specifications) Model Year: 1975 (or early 1976 production) Application: C-20 through 3500 class full-size trucks/pickups/cab-chassis RPO Code: LS9 (350 ci / 4-barrel carburetor) Nominal Output: 165 HP (net horsepower rating at the time) ------- Partial VIN (stamped vehicle identification number): 1Z500593; a serial number indicating the specific vehicle in which the engine was installed when it left the factory. 1: GM division code (1 = Chevrolet) Z: Assembly plant code (e.g., Flint Truck Plant) 5: Model year (1975) 00593: Vehicle's sequential serial number