I bought a 64 gmc truck because i love older style trucks but the engine is an inline 6 but the inside of the truck on the driver side there is a metal tag from GMC that says it is a 305E and so much torque and rpm, but i cant find existence of a 305E inline six? was the motor swapped or is this not a 64? any info would be helpful because this thing is getting expensive and i sont even know exactly what it is, thanks.