If you don't have the owner's manual, stick with 10-30 or 10-40.
The front of the valve cover, on the drivers side will have a cap.
It fit a 1968 to 1992 chevy small block.... Do NOT put it on a LT1
350, to 400lbs, depending on how much aluminum you put on it.
One of the valve covers will have a plug, you can pull out. Usually the driversn side.
The 400 Chevy is a small block engine. The 400 BIG BLOCK Chevy does not exist! 402 big block Chevy does. it seems in the early 70s Chevy put 402s in their pick ups and they had 400 badges. this opened the can of worms known as the non-existant big block 400.
yes
It fit a 1968 to 1992 chevy small block.... Do NOT put it on a LT1
Yes it will fit right in there. A small block Chevy is a small block Chevy. The only thing that is different is the fuel system. All small block Chevy engines are the same it does not matter. Chevy did not redesign the engine blocks until late 2000. But in your case the 2 ingines are the same. Put it in there.
It's possible to cause foaming in the oil pan, but one quart extra probably wouldn't hurt anything.
Most SB's from the late 1950's thru the mid 80's only had one location, on top of the block, right behind the intake manifold.
As long as it has the Chevy bolt pattern, yes.
5.0 305 Small Block Was Standard On These.