I am planning on buying a small block to drop into my 63 c10 from a family friend. I was having some trouble identifying the engine based on the casting numbers and stuff and was wondering if you all could help. We believe it was a remanufactured engine from GM because it appears that the previous owner tried to paint the motor orange while it was still in the car but could only go back so far and behind that it is black. The casting number on the drivers side rear of the engine is GM5.7LG and below it it read SGI and some other numbers. I'm assuming its a 350 based on the "5.7". The numbers on the passenger side front pad were V0502TRA. Anyway, if you all could provide any more info on it, i would much appreciate it. Thanks.