3800 Engine build

GM's 3800 engine is a 3.8 liter V-6 used in many models, like the Bonneville, LeSabre, and Grand Prix. This example is from 1988.

Notes:

The naked engine block, shown here upside-down.

The naked engine block, shown here upside-down.

Crankshaft in place.

Crankshaft in place.

Crankshaft in the block.

Crankshaft in the block.

Still another shot of the crankshaft.

Still another shot of the crankshaft.

The six pistons. The second one from the left is missing its rings!

The six pistons. The second one from the left is missing its rings!

The first piston in place. The block is right-side-up now.

The first piston in place. The block is right-side-up now.

Two pisons in.

Two pisons in.

A ring compressor keeps the piston rings in place during insertion.

A ring compressor keeps the piston rings in place during insertion.

A piston attached to its rod and its end cap.

A piston attached to its rod and its end cap.

All the pistons in place. Cylinders #1, #3, #5 are on the near side (right to left). #2, #4, #6 (right to left) are on the far side.

All the pistons in place. Cylinders #1, #3, #5 are on the near side (right to left). #2, #4, #6 (right to left) are on the far side.

All the pistons are in place, as seen from the front of the block.

All the pistons are in place, as seen from the front of the block.

From the back of the engine. One of the heads is on. Springs are visible, but rockers aren't in place yet.

From the back of the engine. One of the heads is on. Springs are visible, but rockers aren't in place yet.

It's not visible in the picture, but the cam shaft has been inserted. The cam followers are in place.

It's not visible in the picture, but the cam shaft has been inserted. The cam followers are in place.

Now with rocker arms!

Now with rocker arms!

Push rods connect the cam followers to the rocker arms.

Push rods connect the cam followers to the rocker arms.

Both heads on.

Both heads on.

Both heads with rocker arms and push rods in place.

Both heads with rocker arms and push rods in place.

Gears for crankshaft, cam shaft, and balance shaft. Timing chain.

Gears for crankshaft, cam shaft, and balance shaft. Timing chain.

Closeup of push rods without rocker arms in the way.

Closeup of push rods without rocker arms in the way.

Closeup of crank with piston caps.

Closeup of crank with piston caps.

Three rectangles in the center are intake ports; two squares at ends are coolant passages. The balance shaft is in place.

Three rectangles in the center are intake ports; two squares at ends are coolant passages. The balance shaft is in place.

Cam shaft gear (lower) and balance shaft gear (upper) in place. The timing marks line up.

Cam shaft gear (lower) and balance shaft gear (upper) in place. The timing marks line up.

The balance shaft has a thin metal cover.

The balance shaft has a thin metal cover.

Mostly together. The pulley is in place on the front of the engine.

Mostly together. The pulley is in place on the front of the engine.

The block is upside-down again, and the oil pickup has been added.

The block is upside-down again, and the oil pickup has been added.

Oil pan is on.

Oil pan is on.

The oil filter bracket.

The oil filter bracket.

Intake manifold and valve covers are on. It's done!

Intake manifold and valve covers are on. It's done!

Navigation

external documentGM's 3800 site


local document = local link

external document = external link


site index
Site Index