This is a simple guide to show how to build a V8 engine, which is the orange/red one found in the Brat and Chad cars. You could build this engine from the catalog, or pull one from a car. If you want to tear one down, it will just be the steps in reverse.
Guide to V8 Engine Build
All the Parts You Need
First of all you need to get all the parts you need together. I’ve broken this down into sections:
- Engine case parts
- Engine internals
- Carb Parts
- Spark and Fuel
I have a format I am going to stick with. I have circled each part and I will also give a quantity such as (2) if there is more than one. If there is no quantity, assume you need only one.
These are the parts that make up what you see when you look at a engine, it’s the exterior of the engine. Keep in mind the cylinder heads and cylinder head covers are directional! There is one of each for the left and right side.
From the top and left to right:
- Red – Oil pan
- Pink – Cylinder Head Cover (R)
- Blue – Cylinder Head (R)
- Cyan – Engine Block
- Blue – Cylinder Head (L)
- Pink – Cylinder Head Cover (L)
- Lime green – Head Gasket (2)
- Orange – Rockers (2)
- Green – Timing Cover
These are the important bits, this is all the stuff that actually makes up your engine.
Again, from the top down and left to right.
- Green – Timing Chain
- Red – Crankshaft Sprocket (I put it in the wrong place, should be down by the crank)
- Blue – Camshaft
- White – Pistons (8)
- Black – Crankshaft Pulley
- Yellow – Harmonic Balancer
- Pink – Camshaft Sprocket
- Green – Crankshaft
These are the parts that make up the carbs. The carbs job is to mix the fuel with air, which allows the engine to ignite the fuel.
Top to bottom.
- Blue – Air Filter Lid
- Pink – Air Filter
- Red – Air Filter Housing
- Green – Carb
These are the parts that are considered ‘accessories’ things like your alternator and water pump.
Top to bottom, left to right.
- Yellow – (ignore this, I included it with the engine internals section.) Harmonic Balancer (0)
- Green – Water pump
- Cyan – Engine Fan
- Orange – (ignore this, I included it with the engine internals section.) Crankshaft Pulley
- Red – Alternator Belt
- Blue – Oil Filter
- Green – Alternator
- Pink – Thermostat
- Dark Blue – Starter (This actually goes on the transmission, not the engine)
Spark and Fuel
This is what provides fuel and spark to the engine.
Top to bottom, left to right.
- Green – Spark Plug Wires
- Blue – Spark Plugs (8) – You need one for each cylinder, totaling 8.
- Cyan – Ignition Coil
- Green – Distributor
- Yellow – Fuel Pump
So now that we have all the parts we need for the engine, it is time to start assembling them!
To start with, take the engine block and stick it on the engine stand.
Once on the stand, you want to rotate the engine so you can install the crankshaft into the bottom of the engine. Be sure to tighten all 10 bolts.
Once the crankshaft is in, you can begin putting the piston in. There are 8 for this engine, and each piston has two bolts. I recommend doing them one at a time.
Once all the pistons are installed you can go ahead and install the oil pan. There are 5 bolts on each side, making a total of 10 bolts on the oil pan.
Now is the time for the camshaft. You need to rotate the engine so you can get to the top of it now, we’re done with all the bottom end work. It can be confusing as to where it goes if you don’t know engines well, so I’ve included a photo of exactly where to hold it to install. There are no bolts to hold the camshaft on this engine.
Once that is done you can install the crankshaft sprocket (the small one) and the camshaft sprocket (the larger one) only the camshaft sprocket has a bolt.
Next is the timing chain. It just goes on without any tools or bolting, you need a pry tool to remove it though.
Now the timing cover, it goes on the front of the engine and . It’s just 4 bolts on this engine.
Now the head gaskets! These are important. Like really important, don’t forget them. No tools needed, and you will need to drop your wrench to grab them.
Now is time for the Cylinder Heads. You have a left and right one, but the process is the same for both. Just be sure you’re putting the left one on the left side of the engine, and the right one on the right side. There are 5 bolts for each cylinder head, and they can be easy to miss.
Now is the time for the rockers. They go directly on top of the cylinder heads, each set of rockers has 5 bolts.
Next is the Cylinder Head Cover as the game calls it (normally called a valve cover) again there are 2, one for each side and they are directional. So one for the left side, one for the right.
5 bolts, 3 on the side 2 toward the center.
And that is it for the internals of the engine, now at this point you should have a very enginey looking engine. Next we will start working on fuel and spark!
Fuel and Spark
Now is the time for fuel and spark. This will be the fuel pump, ignition coil, distributor, and spark plugs.
First the spark plugs, if you don’t have them in already.
Next is the distributor and the ignition coil. These go on the back of the engine, right above where the transmission goes.
Then the fuel pump. This goes on the frnt of the engine, right in front of the right exhaust.
After that is just the spark plug wires, which I put on once the engine is in the car.
This is the final part! And the easiest, but also the easiest to forget parts, so be attentive when doing this.
First comes the Harmonic Balancer. This goes on the front of the engine, right onto the end of the crankshaft. Only one bolt.
Now the crankshaft pulley, this bolts straight onto the harmonic balancer. It has 3 bolts.
Next is the water pump. It can be easy to miss the bolts on this engine, as they’re kind of hidden. It has 4 bolts.
Next is the engine fan. This bolts on to the water pump. 4 bolts.
Then the alternator. 2 bolts, plus 1 main wire on the back once the engine is in the car.
You’re now ready for the alternator belt. I didn’t take a picture of that, but I have confidence in your ability to put the belt on. Not tools needed to put the belt on or to take it off.
Now for the final 3 parts. First, the flywheel. 6 bolts.
Next is the clutch plate, no tools needed for this part and it just sits on the flywheel.
Finally is the clutch pressure plate. 6 bolts
Now you have a engine that is ready to put in a car, or to stare at longingly. Your choice.