Pretty sure it could be ordered with the 250 turbothrift, the 283 turbofire or the 327 turbofire. Might have also been available with 396 turbojet.
how to remove a 1966 283 engine from a Nova
Well, a stock 350 takes 5 quarts. Chevy didn't introduce the 350 until 1967 (Camaro only) so it is not the original engine for a 1966 pickup truck. Either way, with the stock oil pan and filter, capacity is 5 qt.
1966
Ten Blocks on the Camino Real - 1966 TV was released on: USA: 7 October 1966
ISO Rivolta
Yes.
with rivets
10w40 would be a good choice for this engine.
No
What was the stock price of GM stock in November 1966?Read more:What_was_the_stock_price_of_GM_stock_in_November_1966
The Chevy 250 engine (and the 250-S) produced 155 horsepower, a substantial engine at the time, and was manufactured between 1966 and 1999 for a variety of GM cars and trucks.
5x4 3/4