Chevy Camaro LS3 V8 Engine - printable valves, lifters + N20

I had a lot of trouble sourcing all the necessary parts for this engine. Additionally, some parts didn't work properly, leading to the destruction of the mechanism.

I'm sharing modified parts that allowed me to finish this project. I hope they work for you too :)

Elements I have modified:

I added a simple mount for the engine: I didn't want to use oil pans or magnets.

Added a modified starter motor gear and a mount for the smaller DC motor.

Fully printable valves, although you still need springs

Fully printable lifters

Modified cylinder head for the aforementioned elements

Smaller piston heads + modified piston rod

Tools I have used:

12V DC N20 metal gear micro motor with sprocket

12V mini PWM controller

2.1mm square DC female connector

1A 12V power supply with 2.1mm plug

M3 threading tool: for screwing rocker arms into position without the need for metal inserts