PORSCHE 911 SC REBUILT ENGINE 3.0 L - YEARS 78-83

Porsche 911 3.0L Rebuilt Engine

Our engine rebuilds are thorough and extensive.

The engine is stripped to bare components and put into a high-pressure wash at high temperature with cleansing chemicals, this removes all carbon deposits and debris from previous failures. From this stage, the Cylinder bores and pistons are checked for cracks and wear tolerances. 
 

Pistons are checked and Rings are then changed, Connecting Rods and Crankshaft are checked for tolerance specs.
 

Cylinder Head Rebuild Process

Each cylinder head core is disassembled and inspected for broken bolts, stripped thread holes and broken mounting holes, etc.  All heads go through a three-step cleaning process which includes: 

1) Passing through a high-temperature oven. 
2) Professionally bead blasted. 
3) Placement in a non-caustic hot tank. 

The Head is then inspected for cracks & pressure tested. Cam bores are checked for spec and honed if needed.  

The machining process includes;

-         Inspect valve guide bores using a dial bore gauge and repair where needed.

-         New OEM German Phosphorous Bronze Valve Guides & Valve Stem Seals are installed

-         All valve seats are cut, not ground, using three-angle cuts for maximum precision.

-         The valves are inspected for stem and valve face damage and/or wear, as well as straightness. 

-         All valves are hand-ground and/or replaced as needed.

-        Thoroughly inspect and test all of the valve springs for proper tension/resistance and replace them as needed.

-         All head surfaces are machined (milled), not ground!

Final head cleaning and assembly includes  

Cleaning all heads in a solvent base tank in which all oil galleries, thread holes, etc. are cleaned.  A number of different brushes are used to catch any remaining contaminants.

All heads are run through a detergent-based hot tank before assembly. All assembly work is done by hand by Professional and Expert Porsche Specialists.

Carrera Style (Hydraulic) Chain Tensioners Installed

In 1984, Porsche began using chain tensioners that rely on oil supplied by the engine's oil pump. These new tensioners do not fail like the older chain tensioners often do. It's definitely an update that should be made to any 911 (thru '83), or 930!

Engine Reassembly

Using only Genuine German (OEM), the engine is reassembled to factory specs.

Engine Rebuild Parts List - Genuine OEM German

- Carrera Chain Tensioners -
- Cylinder Head Gaskets -
- Engine Gasket Set -
- Piston Ring Set -
- Timing Chains -
- Timing Chain Rails -
- Rod Bearing Set -
- Main Bearing Set -
- Valve Guides -
- Valve Stem Seals -
- Flywheel Bolts -
- Connecting Rod Bearings -