E28M30Complete Engines

E28 M30 "Big Six" Complete Engines

3.3 & 3.5 Liter

See related information under Rebuilding: Engines and Turbos

Korman offers 4 basic rebuilding configurations for the M30 engine:

Stock
Stage 1
Stage 2
Stroker Engines

All the listed engine packages are 50 State emissions legal unless otherwise noted

Stock Rebuilds

2 year/24,000 mile warranty

Our stock rebuilds are assembled to BMW specifications by our experienced and dedicated technicians rather than off a mass production assembly line. Korman engines are assembled with meticulous craftsmanship, precise machining, and detailed blueprinting. All of our boring and honing is done with a torque plate for exceptional bore roundness and long engine life. These hand built engines are available at prices comparable to a factory reman units which offer only 12 month/12,000 mile warranties. Engine Plus Parts Included

3.3 liter fuel injected P/N 11033010

3.5 liter fuel injected P/N 11056010

Stage 1 Engines

2 year/24,000 mile warranty

Korman Stage 1 3.3L Fuel Injected Engine

Our Stage 1 rebuild will provide a moderate increase in power through the use of our proven performance techniques. Special valve and valve seat work, increased compression, Korman-Stahl Headers and Stage 1 cylinder head porting will net a gain of 20-25 HP depending on model. Performance computer chip suggested, not required. Engine Plus Parts Included

3.3 liter P/N 11033110

Korman Stage 1 Fuel Injected Engine (85-87 535)

These engines feature increased compression, Stage 1 cylinder head porting and polishing, increased valve spring pressure and a special computer chip to take full advantage of the engine's potential. Horsepower is increased from 182 to 215, and torque climbs from 214 lb/ft to 230 lb/ft. Engine Plus Parts Included

P/N 11056110

Stage 2 Engines

2 year/24,000 mile warranty

Korman Stage 2 Fuel Injected Engine 85-87 535

These engines feature increased compression, Stage 2 cylinder head porting and polishing, dual valve springs with chrome alloy retainers, lightened Stage 2 connecting rods, BIG intake valves, Korman Rocker Arms, and a special computer chip. Horsepower is increased from 182 to 230, and torque climbs from 214 lb/ft to 244 lb/ft. This engine is emissions legal and as smooth as the original. Engine Plus Parts Included

P/N 11056220

Strokers/Conversions

2 year/24,000 mile warranty

Another way of gaining horsepower and torque without affecting emissions is to increase the displacement of the M30 engine. This option is available with all of our rebuilds, please call us with your needs.

Required main components:

3.3 to 3.5-block and crankshaft
3.5 to 3.8-crankshaft and conversion parts

All Korman engines are priced built on your good core