What size engine?

[shandapanda]

I bought a pickup truck and the engine in it is not original. The engine in the truck now is a V-6. The truck is a 1976. There was no V-6 available in pickups at this time. How can I find out what year the engine is and vehicle it came from.

[mobilemechanic]

first of all you did not tell us what transmission you have ..auto or stick ?? i going to bet my money on the engine being a 4.3 becuase the 4.3 will bolt right up to any 5.7 chevy small block tranny ...all a 4.3 is ..is a 350 v-8 with 2 cylanders lopped off..also they make manifolds that you can replace the stock fuel injected v-6 with a carberator ....later randy

[Jimmy James]

Look on the engine near the top of the block. Either on the front or side there will be numbers stamped in. This is the identifying mark of the engine.

[stubbornmike]

in 1976 wouldnt it be a strieght six?? 250. 2 bolt main!
I highly dought somebody put fuel injection in a 1976...and it doent madder if it was auto or five speed...some people talk to to make the self feel good!