Collection: E21 (1977 - 1983)
To determine which engine your E21 3-Series model has, please refer to the following:
| Model | Years | Engine |
| 320i | 1977 - 1983 | 1.8L M10 |
| 320/6 (320i 6 Cylinder) | 1977 - 1982 | 2.3L M20 |
| 323i | 1978 - 1983 | 2.3L M20 |
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BMW M20 3.4L Bully Engine Build by 5150 AutoSport
Vendor:5150 AutoSportRegular price $35,999.99 USDRegular priceUnit price / perSale price $35,999.99 USD -
BMW M10 Fuel Rail
Vendor:Nuke PerformanceRegular price $209.99 USDRegular priceUnit price / perSale price $209.99 USD -
5150 AutoSport High Performance Main Bearing Set, BMW M10
Vendor:5150 AutoSportRegular price $249.99 USDRegular priceUnit price / per$249.99 USDSale price $249.99 USD -
BMW M20 Pro-Xtreme Valve Spring Kit
Vendor:5150 AutoSportRegular price $799.99 USDRegular priceUnit price / per$799.99 USDSale price $799.99 USD -
BMW M20 Forged Rod & Piston Kit
Vendor:5150 AutoSportRegular price From $2,399.98 USDRegular priceUnit price / perSale price From $2,399.98 USD -
5150 AutoSport Turbo Camshaft, BMW M20
Vendor:5150 AutoSportRegular price $599.99 USDRegular priceUnit price / per$599.99 USDSale price $599.99 USD -
M20 5-Axis CNC Cylinder Head Porting by 5150 AutoSport
Vendor:5150 AutoSportRegular price $1,500.00 USDRegular priceUnit price / perSale price $1,500.00 USD -
M10 Cylinder Head Service by 5150 AutoSport
Vendor:5150 AutoSportRegular price From $1,000.00 USDRegular priceUnit price / perSale price From $1,000.00 USD -
M30 5-Axis CNC Cylinder Head Porting by 5150 AutoSport
Vendor:5150 AutoSportRegular price $1,500.00 USDRegular priceUnit price / perSale price $1,500.00 USD -
BMW CNC Combustion Chamber Upgrade Service
Vendor:5150 AutoSportRegular price From $400.00 USDRegular priceUnit price / perSale price From $400.00 USD -
5150 AutoSport High Performance Main Bearing Set, BMW M20
Vendor:5150 AutoSportRegular price $299.99 USDRegular priceUnit price / per$299.99 USDSale price $299.99 USD -
5150 AutoSport Factory+ Rebuild Kit, BMW M20
Vendor:5150 AutoSportRegular price $3,399.99 USDRegular priceUnit price / per$3,399.99 USDSale price $3,399.99 USD -
5150 AutoSport Wheel Stud Kit, BMW M12x1.50
Vendor:5150 AutoSportRegular price From $139.99 USDRegular priceUnit price / per$139.99 USDSale price From $139.99 USD -
SP Connecting Rod Set, BMW M30
Vendor:SP ComponentsRegular price $999.99 USDRegular priceUnit price / perSale price $999.99 USD -
Febi Bilstein Rocker Arm, BMW M20 11331271429
Vendor:Febi BilsteinRegular price From $23.99 USDRegular priceUnit price / perSale price From $23.99 USD -
5150 AutoSport Head Gasket & Head Stud Kit, BMW M20
Vendor:5150 AutoSportRegular price From $504.98 USDRegular priceUnit price / perSale price From $504.98 USD
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