Buildcraft Mod 1.12.2/1.11.2/1.7.10 is an open source that helps you enter the port to 1.16 (and higher) versions of MC easily. Do not forget to try out Buildcraft 7!
About Buildcraft

It’s possible to complete your plan with Buildcraft. However, a few features are missing. You can choose the 1.7.10 releases if you want to utilize either of them.
Pipes
It is the main key to the creation.
Pipes are useful for transporting everything from objects to fluids and mechanical energy between inventories or machines.
They have numerous types, with special abilities. They are Wooden, Cobblestone, Sandstone, Stone, Iron, Gold, Diamond, Emerald, and Obsidian.
They can combine with Pipe Sealant to make Fluid Pipes move the liquid. They can connect to Redstone to support Kinesis Pipes to convey the energy.
BuildCraft 7
It is a notable BuildCraft release, containing additions and positive changes in most aspects. Here are some noteworthy points:
A better look by CyanideX
That excludes robots.
Factory
Tanks (containers) have comparators.
Modularization
It has come back, effective for pack developers to get a smaller subset of functions.
Optimizations
For the filters, builders, robots, with other areas.
Pipes
Round robin in diamond pipes, weighting in diamond fluid ones, massive stripes pipes powers, stronger pipe rendering, and colors.
Robotics
Zone Planner, enhanced trigger/action logic, with fantastic animations
Silicon
Another Assembly and Integration Tables. A CraftPacket took the place of ACT.
Buildcraft is a technology mod that offers countless powerful capabilities. Why don’t you install Minecraft Forge? It’s important to start!
How to install Buildcraft Mod:
Assure that you have already installed Minecraft Forge
Define the location of the Minecraft application folder.
On the windows, open Run from the Start Menu, write %appdata% and click to Run
Open Mac on the finder, press and hold Alt and click to Library on the peak of the Menu Bar. Open the Application Support directory and look for Minecraft.
Put Buildcraft Mod you have already downloaded (.jar) into Mods directory.
When you start using Minecraft, open the mod button, you will realize that Buildcraft Mod has been set up.
Screenshots