86' GMC not orignal engine, Cant find VIN

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1gtek14h7gs

^is the VIN i found on the dash and on registration and title!

But it says my truck is a 5.0L V8 305cid Gas 4 BBL OHV 16V Vin H

Lies. the title says 2nd VIN. but dosnt say it.

And im total n00b. I know for a fact its a 5.7L v8 350cid.
well im pretty sure.

i made the pics REAL big so you could see in detail but i didnt wanna dirrect link them to the forums cause they are 1600x1200.

Clicks the Links below for the pics.


Left View
Middle View
Right View

Any help is apperciated.